throbber

`
`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`
`Filed on behalf of The Gillette Company
`By: David L. Cavanaugh, Reg. No. 36,476 (Lead Counsel)
`Yung-Hoon Ha, Reg. No. 56,368 (Back-up Counsel)
`Wilmer Cutler Pickering Hale and Dorr LLP
`1875 Pennsylvania Avenue NW
`Washington, DC 20006
`Tel: (202) 663-6025
`Email: David.Cavanaugh@wilmerhale.com
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`____________________________________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`____________________________________________
`
`THE GILLETTE COMPANY
`
`Petitioners
`
`v.
`
`ZOND, LLC
`
`Patent Owner of
`
`U.S. Patent No. 6,896,773
`
`IPR Trial No. IPR2014-00580
`
`PETITIONER’S REPLY
`
`Claims 1-20 and 34-39
`
`
`
`
`
`

`

`
`
`I. 
`
`II. 
`
`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`TABLE OF CONTENTS
`
`
`
`INTRODUCTION ........................................................................................ 1 
`
`INDEPENDENT CLAIMS 1 AND 34 ARE OBVIOUS ........................... 3 
`
`Mozgrin discloses a “feed gas” as used in claims 1 and 34 ....... 3 
`A. 
`B. 
`Mozgrin teaches “an ionization source that generates a
`weakly-ionized plasma from a feed gas proximate to the anode and the
`cathode assembly” as recited in claims 1 and 34 ......................................... 4 
`C. 
`The combination of Mozgrin with Fortov discloses choosing
`an amplitude and a rise time of the voltage pulse to generate sufficient
`thermal energy in the sputtering target to cause a sputtering yield to be
`non-linearly related to a temperature of the sputtering target, as required
`by claims 21 and 40 ......................................................................................... 6 
`D. 
`One skilled in the art would have been able to combine the
`cited references with reasonable expectation of success ............................ 8 
`III.  THE DEPENDENT CLAIMS ARE ALSO OBVIOUS ............................ 9 
`
`Dependent claim 10 .................................................................... 10 
`A. 
`Dependent claim 13 .................................................................... 10 
`B. 
`Dependent claim 18 .................................................................... 11 
`C. 
`Dependent claims 5 and 36 ........................................................ 12 
`D. 
`Dependent claims 3, 4 and 35 (and independent claim 34) .... 12 
`E. 
`Dependent claims 11 and 14 ....................................................... 13 
`F. 
`IV.  MOZGRIN THESIS IS PRIOR ART ........................................................ 15 
`
`V. 
`
`CONCLUSION ............................................................................................ 15 
`
`
`
`
`
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`
`

`

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`
`
`CASES
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`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`TABLE OF AUTHORITIES
`
`Page(s)
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`Boehringer Ingelheim Vetmedica, Inc. v. Schering-Plough Corp., 320 F.3d 1339, 1345 (Fed.
`Cir. 2003)………………………………………………………………………….15
`
`Pronova BioPharma Norge AS v. Teva Pharms. USA, Inc. 549 Fed. Appx. 934, 938 (Fed.
`Cir. 2013)……………………………………………………………………….…15
`
`
`
`

`

`
`
`I.
`
`INTRODUCTION
`
`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`
`In its Decision on Institution (“DI”), the Board recognized there is a
`
`reasonable likelihood that the challenged claims 1-20 and 34-39 are unpatentable. See
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`IPR2014-580 (“IPR580”) DI at p. 2. None of the arguments raised by Zond alters
`
`that conclusion.
`
`The only disputes remaining as to the independent claims are as follows. First,
`
`Zond proposes to interpret the claim term “feed gas” to require a constantly-
`
`flowing gas (to the exclusion of a static gas in a chamber) in a misguided effort to
`
`distinguish the prior art. The Board has already rejected such a narrow reading of the
`
`term “feed gas.” But even if Zond’s interpretation were adopted, the cited prior art
`
`nevertheless renders the claims unpatentable.
`
`Second, Zond has taken the incorrect position that Mozgrin does not teach “an
`
`ionization source that generates a weakly-ionized plasma from a feed gas proximate to
`
`the anode and the cathode assembly.” Mozgrin generates a plasma between the
`
`shaped anode and cathode that are separated by about 10 mm, which is squarely
`
`within the range of “proximate” (3 mm – 100 mm) of the ’773 patent. Moreover,
`
`Zond omits any discussion of the planar magetron embodiment shown in Mozgrin
`
`that teaches the claim limitations.
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`Third, it would have been obvious to a person of ordinary skill to combine
`
`Mozgrin with Fortov to achieve the “particular sputtering yield by choosing the
`
`amplitude and rise time of the applied voltage pulse.” IPR580 Patent Owner’s
`
`
`
`1
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`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`Response (“PO Resp.”) at pp. 40-41. Mozgrin discloses choosing voltage amplitudes
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`
`
`and rise times. Fortov describes the relationship between the sputtering yield and
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`target temperature (which depends on the voltage amplitudes and rise times applied to
`
`the target), including when that relationship becomes “non-linear” as required by the
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`claims. Moreover, the combination of Mozgrin and Fortov would have been
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`obvious—indeed, recognizably advantageous—to a person of ordinary skill, despite
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`Zond’s argument that Mozgrin is directed to etching while Fortov is directed to
`
`sputtering (as explained below, Mozgrin is directed to sputtering as well as etching).
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`Fourth, the Petition, supported by Mr. DeVito’s declaration, demonstrates why
`
`one of ordinary skill would have combined Mozgrin with the teachings of Fortov,
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`Lantsman and Kudryavtsev, with reasonable expectation of success. In fact, the cross
`
`examination testimony of Dr. Hartsough, Zond’s declarant, confirms that the
`
`motivation to combine existed well before the ‘773 patent. Petitioner also provides
`
`the declaration of Dr. John Bravman, who reached the same conclusion: that the
`
`references would have been combined by one of ordinary skill, and that the
`
`challenged claims are unpatentable.1
`
`Finally, as to the dependent claims, the concessions made by Dr. Hartsough
`
`and an accurate representation of the factual record clearly indicate that these claims
`
`too are invalid.
`
`
`1 Mr. DeVito is no longer available to provide testimony.
`
`
`
`2
`
`

`

`
`
`II.
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`INDEPENDENT CLAIMS 1 AND 34 ARE OBVIOUS
`
`
`
`Zond’s own declarant, Dr. Larry Hartsough, concedes that all the limitations
`
`individually recited in the independent claims were well known before the effective
`
`date of the ‘775 patent. See Ex. 1025 (“’773 Hartsough Depo.”) at 76:5-10; 77:14-
`
`78:16; 80:13-18; 89:21-24; 37:25 – 38:4; and 32:9-14. The claimed combinations were
`
`similarly obvious.
`
`The only dispute remaining as to the independent claims is whether (1) the
`
`cited references render obvious generating a weakly-ionized plasma from the feed gas
`
`proximate to the anode and the cathode assembly and (2) the combination of
`
`choosing the precise voltage amplitude and rise time to achieve the nonlinear
`
`relationship would have obvious ‘773 Hartsough Depo. at 39:21–40: 15.
`
`A. Mozgrin discloses a “feed gas” as used in claims 1 and 34
`
`Zond argues that “Mozgrin teaches a static gas and not a feed gas,” because
`
`feed gas requires a “constant flow of gas.” IPR580 PO Resp. at pp. 39 and 3. This is
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`wrong for three reasons.
`
`First, the Board already considered and rejected Zond’s proposal that the term
`
`“feed gas” requires a constant flow of gas to the exclusion of a “static” gas.
`
`Specifically, “[t]he recitation of ‘a feed gas’ … does not necessarily imply the flow of
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`gas.” Ex. 1027 (“IPR2014-00578 DI”) at p.9.
`
`Second, as Mr. DeVito explained, one skilled in the art would understand
`
`Mozgrin to teach a constant flow of gas:
`
`
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`3
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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`Q: Just point me to where in the Mozgrin reference he’s talking
`about using a constant flow of gas.
`A: … I think he teaches it because … he’s applying these pulses
`over many periods. He’s getting these very high deposition rates. And,
`you know, just the body of the work suggests to me that this is a
`constant flow of gas going on. He mentions about the pressure. So …
`in order for the pressure to stay constant, you’d have to keep applying
`this flow of gas and pumping it out.
`Ex. 2010 (“’773 DeVito Depo.”) at 84:13-85:1.
`
`Third, Zond argues that the reference to needle valves in the Mozgrin Thesis is
`
`inconsistent with a continuous flow of gas in Mozgrin. IPR580 PO Resp. at pp. 39,
`
`56. This is incorrect. Dr. Bravman explained that “it is well-known that needle valves
`
`provide a continuous flow of gas” (Ex. 1028 (Bravman Dec.) at ¶ 48) and,
`
`Ehrenberg, a book published in 1981, expressly teaches that “while still pumping,
`
`argon gas is allowed to enter the bell-jar through a needle valve… This continuous
`
`flow method tends to sweep away any impurities….”2 (Ex. 1026 (“Ehrenberg”) at p.
`
`81). Thus, use of needle valves allows a continuous flow of gas into a chamber.
`
`B. Mozgrin teaches “an ionization source that generates a weakly-
`ionized plasma from a feed gas proximate to the anode and the
`cathode assembly” as recited in claims 1 and 34
`
`Zond further argues that “Mozgrin does not teach a weakly ionized plasma
`
`proximate to both the anode and the cathode assembly.” IPR580 PO Resp. at pp.
`
`
`2 All emphasis is added unless otherwise stated.
`
`
`
`4
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`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`35-36. Zond argues that by measuring the plasma density at the symmetry center of
`
`
`
`the shaped-electrode, Mozgrin cannot teach “proximate” because that point is “as far
`
`away from both the cathode (1) and anode (2) as it possibly can be while still being
`
`between the cathode and the anode.” IPR580 PO Resp. at pp. 36-38. However, the
`
`symmetry center of the shaped-electrode is equidistant from both the anode and the
`
`cathode.
`
`In addition, Mozgrin’s shaped electrodes
`
`are “separated by about 10 mm.” Mozgrin at p.
`
`401, left col, ¶2. Dr. Hartsough conceded that in
`
`the ‘773 patent, the entire region of Figure 5B,
`
`shown as annotated on right3, which has a distance up to 100 mm, (i.e., 10 times larger
`
`than Mozgrin), is proximate to both the anode and the cathode. Ex. 1001 (“’773
`
`Patent”) at 10:23-24 and ‘773 Hartsough Depo. at 120:4-8. Therefore, under Dr.
`
`Hartsough’s definition of “proximate,” any point between Mozgrin’s shaped
`
`electrodes is proximate to both the anode and the cathode, particularly a point that is
`
`equidistant from the electrodes (i.e., 5 mm from each).
`
`Lastly, Zond omits any discussion of Mozgrin’s
`
`planar electrode configuration. As discussed in the
`
`Petition, (IPR580 Petition at p. 14), Mozgrin’s planar
`
`
`3 Anode is annotated as red and cathode is annotated as green.
`
`
`
`5
`
`

`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`configuration has a gap between the anode (colored red) and the cathode (colored
`
`
`
`green), where the “[plasma] discharge had an annular shape and was adjacent to the
`
`cathode.” Ex. 1002 (“Mozgrin”) at p. 401, left col, ¶ 1. This planar electrode
`
`configuration forms a region that is substantially similar to the region 245 of Figure
`
`5B of the ‘773 patent, shown above. As noted above, Dr. Hartsough conceded that in
`
`the ‘773 patent, the entire region 245 defined by gap 244 of Figure 5B, which has a
`
`distance up to 100 mm, is “proximate” to both the anode and the cathode.
`
`C. The combination of Mozgrin with Fortov discloses choosing an
`amplitude and a rise time of the voltage pulse to generate
`sufficient thermal energy in the sputtering target to cause a
`sputtering yield to be non-linearly related to a temperature of the
`sputtering target, as required by claims 21 and 40
`
`Zond also argues that Mozgrin and Fortov individually or in combination do
`
`not teach the claim limitation of choosing an amplitude and a rise time of the voltage
`
`pulse for the purpose of generating “sufficient thermal energy in the sputtering target
`
`to cause a sputtering yield to be non-linearly related to a temperature of the sputtering
`
`target.” Zond further asserts that one skilled in the art would not have combined the
`
`two references without using the ‘773 as a blueprint for that combination. IPR580
`
`PO Resp. at pp. 40-42. This is incorrect.
`
`Each and every individual component of this limitation is taught by the
`
`combination of Mozgrin and Fortov. As conceded by Dr. Hartsough, “Mozgrin
`
`delivers a voltage pulse to [a] weakly-ionized plasma” that “has an amplitude” and
`
`“has a rise time.” ‘773 Hartsough Depo. at 77:20 – 78:8. Mozgrin used a typical
`
`
`
`6
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`

`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`control system where the controlled variable could be the voltage. Id. at 83:12-25
`
`
`
`(“Q. So one of ordinary skill in the art could expect that the pulsed power supply used
`
`by Mozgrin would operate using such a known control system; correct? … [A.] Yes.
`
`Q. And the controlled variable in Mozgrin’s control system would be voltage because
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`that’s what he’s applying; right? … [A.] It -- it’s a little difficult to determine what he
`
`means -- what -- when -- how a controlled variable would be, but it could be.”). This
`
`applied voltage pulse would lead to “a rapid increase from the weakly-ionized plasma”
`
`to grow into “a strongly-ionized plasma generated in the sputtering regime of
`
`Mozgrin.” ‘773 Hartsough Depo. at 78:11-16; 79:3-6; and 80:13-18. The sputtering
`
`yield of the copper target, described in Mozgrin (‘773 Hartsough Depo. at 69:7-13)
`
`would behave according to the non-linear relationship with temperature of the
`
`sputtering target, as described in Fortov. ‘773 Hartsough Depo. at 75:10-13. See
`
`Bravman Dec. at ¶¶ 61-64.
`
`Faced with these facts and concessions, Zond argues that a person of ordinary
`
`skill would not have combined Mozgrin with Fortov. But as Dr. Hartsough concedes,
`
`“a person of ordinary skill would have been motivated to increase the sputtering yield
`
`in a sputtering application.” ‘773 Hartsough Depo. at 53:13-17. Moreover, Dr.
`
`Hartsough concedes that “[i]ncreasing the ionization of sputtered atoms is
`
`advantageous in sputtering applications.” ‘773 Hartsough Depo. at 51:21 – 52:1.
`
`Therefore, increasing the sputtering yield of Mozgrin—which provides well-known
`
`benefits—would lead to the non-linear relationship described in Fortov at sufficiently
`7
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`
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`

`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`high temperatures. In other words, Zond’s own declarant actually supports the
`
`
`
`Petitioners’ position. Thus, a person of ordinary skill would have been motivated to
`
`combine Fortov with Mozgrin to achieve the non-linear increase in sputtering yield
`
`taught in Fortov. Bravman Dec.at ¶¶ 65-66.
`
`Finally, Zond argues that there are “serious discrepancies” between Mozgrin
`
`and Fortov that would prevent their combination. Zond argues that Fortov discloses
`
`sputtering over a large range of plasma densities while Mozgrin has no sputtering in
`
`its “regime 3” and, therefore, “these contradictory teachings” would not have led a
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`person of ordinary skill to combine the references. IPR580 PO Resp. at 24-25.
`
`However, this argument ignores the fact that Mozgrin teaches a regime 2 that is
`
`dedicated to sputtering. Mozgrin at p. 409, left col, ¶¶ 4-5. As Mozgrin states, “[e]ach
`
`point of the discharge characteristic [of Figs. 4 and 7] represent a pair of voltage and
`
`current oscillograms [of Fig. 3].” Mozgrin at p. 402, right col., ¶2. Accordingly, Fig.
`
`3b of Mozgrin shows a voltage pulse generated by a power supply for either
`
`sputtering or etching regimes. Ex. 1028 (“Bravman Dec.”) at ¶¶ 59-60.
`
`D. One skilled in the art would have been able to combine the cited
`references with reasonable expectation of success
`
`In addition to the argument that a person of ordinary skill would not combine
`
`Mozgrin with Fortov addressed in the prior section, Zond also argues that one skilled
`
`in the art would not combine Mozgrin with Lantsman because “a system that uses a
`
`pulsed discharge supply … would operate very differently if it were modified to use
`
`
`
`8
`
`

`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`two DC power supplies…” IPR580 PO Resp. at 28-29. However, Mozgrin itself
`
`
`
`combined a constant DC power supply unit with a pulsed supply unit into a single
`
`power supply. Mozgrin at p. 401, left col, ¶ 4. Indeed, Dr. Hartsough concedes that
`
`“it wouldn’t be beyond the skill of a person of ordinary skill … to combine a constant
`
`DC supply with a pulsed DC supply.” Ex. 1029 (“’775 Hartsough Depo.”) at 152:9-
`
`18. See Bravman Dec. at ¶¶ 67-68.
`
`Zond also argues that one skilled in the art would not combine Mozgrin with
`
`Kudryavtsev. IPR580 PO Resp. at pp. 30-34. However, Mozgrin himself explicitly
`
`“took into account the dependenc[i]es which had been obtained in [Kudryavtsev]”
`
`when designing his own system. Mozgrin at p. 401, right col, ¶1; see also Bravman
`
`Dec.at ¶¶ 69-70. Zond’s argument that one of skilled in art would not have done
`
`exactly what Mozgrin himself actually did do makes no sense.
`
`The differences cited by Zond are inconsequential. A person of ordinary skill
`
`would have known how to apply the teachings of these references to systems for
`
`performing sputtering, irrespective of different pressures, dimensions, sizes, magnets
`
`and/or other feature differences. See Bravman Dec.at ¶¶ 71-72.
`
`III. THE DEPENDENT CLAIMS ARE ALSO OBVIOUS
`
`Zond provides no argument that dependent claims 2, 6-8, 12, 15-17, 19, 20 and
`
`37-39 add any patentable subject matter, thereby conceding that these claims are
`
`unpatentable. Dependent claims 3-5, 10, 11, 13, 14, 18 and 34-36 are also obvious, as
`
`discussed more fully below.
`
`
`
`9
`
`

`

`
`
`A. Dependent claim 10
`
`
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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`
`Zond argues that claim 10 requires “the ionization source [that generates a
`
`weakly-ionized plasma…]” to include an “electrode” other than the cathode assembly
`
`or the anode recited in claim 1. As support, Zond identifies an embodiment of the
`
`‘773 patent specification that uses a third electrode as an “ionization source” that
`
`generates weakly-ionized plasma. IPR580 PO Resp. at pp. 43-44. However, the ‘773
`
`patent expressly teaches a “DC power supply generates an initial voltage of several
`
`kilovolts between the cathode assembly 216 and the anode 238 in order to generate
`
`and maintain the [weakly-ionized or] pre-ionized plasma.” ‘773 Patent at 8:19-23.
`
`Hence, the ‘773 patent teaches that the ionization source can be either the anode,
`
`cathode assembly or a third electrode. Bravman Dec. at ¶ 76. Dr. Hartsough
`
`conceded as such during his cross examination regarding the ‘142 patent. Ex. 1030
`
`(“’142 Hartsough Depo.”) at 35:23 – 36:4 and 99:6-19.
`
`B. Dependent claim 13
`
`Zond argues that Mozgrin fails to teach claim 13 because the claim limitation
`
`“requires the strongly-ionized plasma to be substantially uniform in a particular area:
`
`proximate to the cathode assembly.” IPR580 PO Resp. at 48. However, as discussed
`
`above with respect to independent claim 1, Mozgrin teaches that the “[plasma]
`
`discharge had an annular shape and was adjacent to the cathode.” Mozgrin at p. 401,
`
`left col, ¶1. Further, the sputtering regime (regime 2), “the discharge expands over a
`
`considerably larger area of the cathode surface than it occupied in the stationary pre-
`
`
`
`10
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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`ionization regime,” Mozgrin at p. 403, left col, last ¶; see also
`
`
`
`IPR2014-580 Petition at p. 23. Bravman Dec. at ¶79. Indeed,
`
`Figure 6(a)(1), which is in the sputtering regime (regime 2),
`
`shows such a uniform annular shape. This annular shape results due to the presence
`
`of the magnetic field. Mozgrin at p. 401, left col, ¶1 and Figures 1 and 6(a)(1); see
`
`also Bravman Dec.at ¶80. As Dr. Hartsough conceded, this is the same magnetic field
`
`discussed in the ‘773 patent that “uniformly distribute[s] the [strongly-ionized]
`
`plasma.” ‘773 Hartsough Depo. at 163:21 – 164:7. Thus, the ‘773 patent and
`
`Mozgrin both teach generating a strongly-ionized uniform plasma proximate to the
`
`cathode assembly using a magnetic field. Bravman Dec.at ¶¶ 81-83.
`
`C. Dependent claim 18
`
`Zond argues that Mozgrin teaches two distinct power supplies. IPR’580 PO
`
`Resp. at 52. This is factually incorrect. Mozgrin shows a single “discharge supply
`
`unit” in Figure 2, and states that “Figure 2 presents a simplified scheme of the
`
`discharge supply system [that] involved a pulsed discharge supply unit and a system
`
`for pre-ionization.” Mozgrin at Fig. 2 and p. 401, left col, ¶5. A person of ordinary
`
`skill would understand that the combination of the pulsed discharge supply unit and
`
`the stationary discharge supply unit can be viewed as a single power supply. Bravman
`
`Dec. at ¶¶ 87-88. Dr. Hartsough concedes that Mozgrin shows “one interconnected
`
`circuit where you couldn’t simply remove the high-voltage supply unit and have it
`
`operate the same.” ‘773 Hartsough Depo. at 170:23 – 171:3. Bravman Dec. at ¶ 89.
`
`
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`11
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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`
`D. Dependent claims 5 and 36
`
`Zond argues that the cited references do not teach “‘the thermal energy
`
`generated in the sputtering target does not substantially increase an average
`
`temperature of the sputtering target,’ as recited in claim 5, and as similarly recited in
`
`claim 36.” IPR580 PO Resp. at pp. 53-55. There is no dispute that Kawamata
`
`discloses applying cooling water to the substrate on the side opposite the plasma and
`
`that this cooling water maintains the cathode temperature constant. ‘773 Hartsough
`
`Depo. at 143:17-24. Bravman Dec. at ¶¶ 93-94.
`
`Instead, Zond argues that Kawamata teaches heating the target to raise the
`
`average temperature of the entire target. IPR580 PO Resp. at 54. However, the
`
`passages on which Zond cites in Kawamata, like the ‘773 patent, does not teach
`
`heating the entire target, but rather teaches heating only the surface of the film source
`
`material and indeed maintains the average temperate of the target constant by
`
`cooling the opposite side with water. See Ex. 1009 (“Kawamata”) at 3:62-63
`
`(describing “first aspect” of invention); id. at 3:3-11 (“In the first aspect…, there is
`
`provided a process for producing a thin film which comprises heating a surface of the
`
`film source material so that at least a part of the film source material is ejected in
`
`molecular form…”). Accordingly, Kawmata is simply explaining that surface
`
`temperature of the target is raised, not the entire target.
`
`E. Dependent claims 3, 4 and 35 (and independent claim 34)
`
`Zond argues that a person skilled in the art would not have been “motivated to
`
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`12
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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`combine Lantsman’s feed gas in Mozgrin’s static gas system.” IPR2014-580 PO Resp
`
`
`
`at p. 56. However, as explained above with respect to the independent claims, this
`
`argument is predicated on an incorrect understanding of the claim and prior art.
`
`Mozgrin teaches a continuous flow of gas. As such, Zond’s argument is
`
`deficient, and a person of ordinary skill would be able to combine Mozgrin with
`
`Lantsman with predictable results. Bravman Dec.at ¶¶ 104-105 and ¶¶ 44-49. Zond
`
`further argues that Lantsman is “silent with regard to controlling the flow of feed gas
`
`with a controller to diffuse strongly-ionized plasma.” IPR580 PO Resp. at p. 56. But,
`
`as Dr. Hartsough concedes, feed gas will “intermingle” because it “want[s] to diffuse
`
`the particles of both the plasma and the feed gas together.” ‘773 Hartsough Depo. at
`
`35:25 – 36:20. Thus, “addition of the feed gas would diffuse the strongly-ionized
`
`plasma.” IPR2014-580 Petition at p. 42; see also Bravman Dec.at ¶ 106.
`
`F. Dependent claims 11 and 14
`
`Zond argues Mozgrin fails to teach “increase an ionization rate” because it
`
`should mean “that the rate at which ions are generated at a time t1 increases to a
`
`higher rate at a later time, t2.” IPR580 PO Resp. at pp. 45 and 50. This interpretation
`
`is not found in the patent specification or file history. Bravman Dec. at ¶ 112.
`
`Regardless, this limitation is taught by Mozgrin. Dr. Hartsough concedes that
`
`“if you have a quick increase in the plasma density, … that indicate[s] a quick increase
`
`in the rate of ionization.” Ex. 1031 (“’184 Hartsough Depo.”) at 88:21 – 89:6.
`
`Application of the “voltage pulse in Mozgrin will cause…the plasma density [to]
`
`
`
`13
`
`

`

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`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`grow.” ‘773 Hartsough Depo. at 78:11-16. “And looking at Mozgrin, it would be a
`
`
`
`rapid increase from the weakly-ionized plasma.” ‘773 Hartsough Depo. at 79:3-6.
`
`Accordingly, Mozgrin also teaches this limitation. Bravman Dec. at ¶¶ 113-114.
`
`There is no dispute that Mozgrin teaches the limitations “a rise time of the
`
`voltage pulse” and “a distance between the anode and the cathode assembly.” As Dr.
`
`Hartsough conceded, Mozgrin “had the ability to choose the voltage pulse,” ‘773
`
`Hartsough Depo. at 89:21-24, where the voltage pulse “has a rise time.” ‘773
`
`Hartsough Depo. at 78:7-8. Similarly, Mozgrin discloses a “planar magnetron” with a
`
`“cathode” and an “anode.” ‘773 Hartsough Depo. at 76:2-10. Nevertheless, Zond
`
`asserts that the prior art does not teach choosing the “rise time of the voltage pulse”
`
`and the “distance between the anode and the cathode assembly” for the particular
`
`purpose of achieving an “increase [in the] ionization rate of the strongly-ionized
`
`plasma.” IPR580 PO Resp. at pp. 51-53 and 57.
`
`Again, this is factually incorrect because Mozgrin’s “main purpose … was to
`
`study experimentally a high-power noncontracted quasi-stationary discharge in
`
`crossed fields of various geometry and to determine their parameter ranges.” Mozgrin
`
`at p. 400, right col, ¶3. A person of ordinary skill would recognize that various
`
`experimental variables (e.g., voltage pulse rise time and distance between anode and
`
`cathode) were chosen for the particular purpose of achieving a higher plasma density
`
`“[b]ecause of the need for greater discharge power and plasma density….” (Mozgrin
`
`at p. 400, left col, ¶3), which translates to a need to “increase an ionization rate” (‘184
`14
`
`
`
`

`

`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`Hartsough Depo. at 77:10-24; see also Bravman Dec.at ¶ 115-117).
`
`
`
`Finally, Zond’s argument is legally flawed because it is well settled that “[a]n
`
`intended use or purpose usually will not limit the scope of the claim because such
`
`statements usually do no more than define a context in which the invention operates.”
`
`See, e.g., Boehringer Ingelheim Vetmedica, Inc. v. Schering-Plough Corp., 320 F.3d 1339, 1345
`
`(Fed. Cir. 2003); see also Pronova BioPharma Norge AS v. Teva Pharms. USA, Inc. 549 Fed.
`
`Appx. 934, 938 (Fed. Cir. 2013).
`
`IV. MOZGRIN THESIS IS PRIOR ART
`
`Despite the fact that the Board already determined that the Mozgrin Thesis is a
`
`printed publication, Zond argues that Mozgrin Thesis is not prior art. The Board
`
`should again dismiss this argument. Moreover, it is clear that Mozgrin Thesis was
`
`catalogued by the Russian Library – an institution which is by definition established to
`
`share the information that it houses with any interested persons – either by the
`
`imprint date of 1994 or at least by 1995 as shown on top of the Exhibit 1014.
`
`V. CONCLUSION
`
`The Board correctly found that there was a reasonable likelihood that the
`
`claims were are unpatentable and none of Zond’s arguments undermine that
`
`conclusion. Claims 1-20 and 34-39 are therefore unpatentable.
`
`Customer Number:
`Tel: (202) 663-6025
`Fax: (202) 663-6363
`Wilmer Cutler Pickering
`Hale and Dorr, L.L.P.
`
`
`
`Respectfully submitted,
`
`By: /David l. Cavanaugh/
`David L. Cavanaugh, Reg. No. 36,476
`For Petitioner
`
`15
`
`

`

`
`
`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`CERTIFICATE OF SERVICE
`
`I hereby certify that, on April 2, 2015, I caused a true and correct copy of the
`
`foregoing materials:
`
` Petitioner’s Reply
`
` Exhibits 1025-1031
`
` Exhibit Appendix
`
`to be served via email, as previously agreed between the parties, on the following
`
`counsel of record for Patent Owner:
`
`Date of service April 2, 2015
`
`Manner of service
`
`Email: gonsalves@gonsalveslawfirm.com;
`bbarker@chsblaw.com; kurt@rauschenbach.com
`
`
`Persons Served Dr. Gregory J. Gonsalves
`2216 Beacon Lane
`Falls Church, Virginia 22043
`
`Bruce Barker
`Chao Hadidi Stark & Barker LLP
`176 East Mail Street, Suite 6
`Westborough, MA 01581
`
`
`
`
`/Yung-Hoon Ha/
`Yung-Hoon Ha
`Registration No. 56,368
`7 World Trade Center
`250 Greenwich Street
`New York, NY10007
`
`
`
`16
`
`

`

`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`EXHIBIT APPENDIX
`
`Description
`U.S. Patent No. 6,896,773
`D.V. Mozgrin, et al, High-Current Low-Pressure Quasi-
`Stationary Discharge in a Magnetic Field: Experimental
`Research, Plasma Physics Reports, Vol. 21, No. 5, 1995
`(“Mozgrin”)
`U.S. Patent No. 6,413,382 (“Wang”)
`Certified Translation of Encyclopedia of Low-Temperature
`Plasma Physics, Introductory Vol. III, Section VI, Fortov, V.E.,
`Ed., Nauka/Interperiodica, Moscow (2000); pp. 117-126
`(“Fortov”)
`Declaration of Richard DeVito (“DeVito”)
`A. A. Kudryavtsev, et al, Ionization relaxation in a plasma
`produced by a pulsed inert-gas discharge, Sov. Phys. Tech. Phys.
`28(1), January 1983 (“Kudryavtsev”)
`U.S. Patent No. 6,306,265 (“Fu”)
`U.S. Patent No. 6,190,512 (“Lantsman”)
`U.S. Patent No. 5,958,155 (“Kawamata”)
`Encyclopedia of Low-Temperature Plasma Physics,
`Introductory Vol. III, Section VI, Fortov, V.E., Ed.,
`Nauka/Interperiodica, Moscow (2000); pp. 117-126 (in
`Russian)
`U.S. Patent No. 6,398,929 (“Chiang”)
`Gas Discharge Physics, by Raizer, Table of Contents, pp. 1-35,
`Springer 1997 (“Raizer”)
`File History of U.S. Pat. No. 6,896,773, Amendment mailed
`October 19, 2004 (“10/19/04 Amendment”)
`Catalogue Entry at the Russian State Library for the Mozgrin
`Thesis
`Certified Translation of D.V. Mozgrin, High-Current Low-
`Pressure Quasi-Stationary Discharge in a Magnetic Field:
`Experimental Research, Thesis at Moscow Engineering Physics
`Institute, 1994 (“Mozgrin Thesis”)
`Mozgrin Thesis (Original Russian)
`Thornton, J. and Hoffman, D.W. Stress related effects in thin
`films, Thin Sold Films, 171, 1989, 5-31
`
`Savvides and B. Window, Unbalanced magnetron ion‐assisted
`
`1
`
`Exhibit
`1001
`
`1002
`1003
`
`1004
`1005
`
`1006
`1007
`1008
`1009
`
`1010
`1011
`
`1012
`
`1013
`
`1014
`
`1015
`1016
`
`1017
`1018
`
`
`
`
`
`

`

`
`
`Trial No. IPR2014-00580
`Docket No. 0110198-00194 US1
`deposition and property modification of thin films, J. Vac. Sci.
`Technol. A 4 , 504, 1986
`Grove TC. Arcing problems encountered during sputter
`deposition of aluminum, White Papers, ed: Advanced Energy,
`2000
`Asymmetric bipolar pulsed DC: the enabling technology for
`reactive PVD. Sellers, J. Surface & Coatings Technology vol. 98
`issue 1-3 January, 1998. p. 1245-1250
`Rossnagel and Hopwood. Rossnagel, S. M., & Hopwood, J.,
`Magnetron sputter deposition with high levels of metal
`ionization, Applied Physics Letters, 63(24), 3285-3287, 1993.
`CRC Handbook of Chemistry and Physics. Lide D.R., Ed.-in-
`Chief. CRC Press 2001. p. 4-9.
`Declaration of Mark Matuschak in Support of Unopposed
`Motion for Admission Pro Hac Vice
`Declaration of Cosmin Maier in Support of Unopposed Motion
`for Admission Pro Hac Vice
`Deposition Transcript of Larry D. Hartsough Ph.D. for U.S.
`Patent No. 6,896,773 (February 18, 2015)
`Ehrenberg and Gibbons “Electron bombardment induced
`conductivity and its applications,” 1981
`IPR2014-00578 Decision on Institution
`Declaration of John C. Bravman
`Deposition Transcript of Larry D. Hartsough Ph.D. for U.S.
`Patent No. 6,896,775 (February 19, 2015)
`Deposition Transcript of Larry D. Hartsough Ph.D. for U.S.
`Patent No. 6,853,142 (February 26, 2015)
`Deposition Transcript of Larry D. Hartsough Ph.D. for U.S.
`Patent No. 7,808,184 (February 11, 2015)
`
`
`1019
`
`1020
`
`1021
`
`1022
`
`1023
`
`1024
`
`1025
`
`1026
`1027
`1028
`
`1029
`
`1030
`
`1031
`
`2
`
`
`
`
`
`

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