`571-272-7822
`
`Paper 10
`Entered: June 9, 2017
`
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`____________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`____________
`
`MICRON TECHNOLOGY, INC., INTEL CORPORATION, and
`GLOBALFOUNDRIES U.S., INC.,
`Petitioners,
`
`v.
`
`DANIEL L. FLAMM,
`Patent Owner.
`
`____________
`
`Case IPR2017-00406
`Patent 5,711,849
`____________
`
`
`
`Before CHRISTOPHER L. CRUMBLEY, JO-ANNE M. KOKOSKI, and
`KIMBERLY McGRAW, Administrative Patent Judges.
`
`KOKOSKI, Administrative Patent Judge.
`
`
`
`
`
`DECISION
`Institution of Inter Partes Review
`37 C.F.R. § 42.108
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`
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`IPR2017-00406
`Patent 5,711,849
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`
`I. INTRODUCTION
`Micron Technology, Inc., Intel Corporation, and
`GLOBALFOUNDRIES U.S., Inc. (collectively, “Petitioner”) filed a Petition
`(“Pet.”) to institute an inter partes review of claims 1–29 of U.S. Patent
`No. 5,711,849 (“the ’849 patent,” Ex. 1001). Paper 1. Daniel L. Flamm
`(“Patent Owner”) filed a Preliminary Response (“Prelim. Resp.”). Paper 9.
`We have jurisdiction under 35 U.S.C. § 314.
`Upon consideration of the Petition, Preliminary Response, and the
`evidence of record, we determine that Petitioner has demonstrated a
`reasonable likelihood of prevailing with respect to the unpatentability of at
`least claim 1 of the ’849 patent. As such, we exercise our discretion to have
`the review proceed on all the challenged claims. Accordingly, we institute
`an inter partes review of claims 1–29 of the ’849 patent.
`Related Proceedings
`A.
`The parties indicate that the ’849 patent is at issue in five related
`patent infringement actions. Pet. 4; Paper 7, 2. The ’849 patent previously
`was the subject of IPR2016-00466 (filed by Lam Research Corp., institution
`denied on July 19, 2016), and currently is the subject of IPR2017-00392,
`also filed by Petitioner. Pet. 5.
`The ’849 Patent
`B.
`The ’849 patent, titled “Process Optimization in Gas Phase Dry
`Etching,” is directed to “a plasma etching method that includes determining
`a reaction rate coefficient based upon etch profile data.” Ex. 1001, 1:51–53.
`The method “includes steps of providing a plasma etching apparatus having
`a substrate therein[,]” where the substrate has a film overlaying the top
`surface, and the film has a top film surface. Id. at 1:59–63. It “also includes
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`chemically etching the top film surface to define an etching profile on the
`film, and defining etch rate data which includes an etch rate and a spatial
`coordinate from the etching profile.” Id. at 1:63–67. Steps of extracting a
`reaction rate constant from the etch rate data, and using the reaction rate
`constant to adjust the plasma etching apparatus are also described. Id. at
`1:67–2:2. According to the ’849 patent, the method “provides for an easy
`and cost effective way to select appropriate etching parameters such as
`reactor dimensions, temperature, pressure, radio frequency (rf) power, flow
`rate and the like by way of the etch profile data.” Id. at 1:53–57.
`Figure 1A of the ’849 patent is reproduced below:
`
`
`Figure 1A is an example of an etched substrate. Id. at 3:66–67. Substrate 21
`includes bottom surface 23, sides 25, and top surface film 27, and is defined
`in spatial coordinates z and r. Id. at 3:67–4:2. “[T]op surface film [27]
`includes a convex region, or etching profile.” Id. at 4:3–4. “The etching
`profile occurs by way of different etch rates along the r-direction of
`[substrate 21], corresponding to different etchant species concentrations.”
`Id. at 4:4–6. Concentration profile no(r,z) shows that “the greatest
`concentration of reactant species exists at the outer periphery of [] top
`surface film [27].” Id. at 4:6–9.
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`The ’849 patent describes an embodiment of a method of extracting
`an etch rate constant in which a substrate with an overlying film is placed
`into a plasma etching apparatus, and the plasma etching step occurs at
`constant pressure, and, preferably, isothermally. Id. at 5:11–19. Plasma
`etching of the film stops before etching into an etch stop layer underneath
`the overlying film “in order to define a ‘clean’ etching profile.” Id. at 5:24–
`26. The plasma etching step produces an etching profile, which “converts
`into a relative etch rate, relative concentration ratio, a relative etch depth and
`the like at selected spatial coordinates.” Id. at 5:28–32.
`Using x-y-z coordinates, the relative etch rate is in the z-direction, and
`x-y are the spatial coordinates. Id. at 5:38–40. “The etching profile is
`thereby characterized as a relative etch rate u, [an] x-location, and a y-
`location u, (x, y),” and an array of data points in the x-y coordinates define
`the etching profile. Id. at 5:40–41, 45–47. An etch constant over diffusivity
`(kvo/D) and an etch rate at the substrate edge is then calculated, where “[t]he
`etch constant over diffusivity correlates with data points representing the
`etch rate profile.” Id. at 5:62–65. After the etch rate constant kvo is
`extracted, the surface reaction rate constant ks can be determined using the
`formula ks = (kvo)dgap, where dgap is the space above the substrate, between
`the substrate and the adjacent substrate. Id. at 3:35–36, 6:58–62, 9:27–29,
`Fig 7.
`Challenged Claims
`C.
`Petitioner challenges claims 1–29 of the ’849 patent. Claims 1, 10,
`20, 22, and 26 are independent. Claim 1 is illustrative, and reads as follows:
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`1.
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`A device fabrication method comprising the steps
`
`Exhibit No.
`1007
`
`of:
`providing a plasma etching apparatus comprising a substrate
`therein, said substrate comprising a top surface and a film
`overlying said top surface, said film comprising a top film
`surface;
`etching said top film surface to define a relatively non-uniform
`etching profile on said film, and defining etch rate data
`comprising an etch rate and a spatial coordinate which
`defines a position within said relatively non-uniform
`etching profile on said substrate, said etching comprising
`a reaction between a gas phase etchant and said film; and
`extracting a surface reaction rate constant from said etch rate
`data, and using said surface reaction rate constant in the
`fabrication of a device.
`Ex. 1001, 17:35–50.
`The Prior Art
`D.
`Petitioner relies on the following prior art references:
`Reference
`Description
`Date
`Modeling of a High
`Galewski
`Aug. 1992
`Throughput Hot-Wall
`Reactor for Selective
`Epitaxial Growth of Silicon,
`IEEE Transaction on
`Semiconductor
`Manufacturing, Vol. 5, No.
`3 (1992) 169–179
`Transient Behavior during
`Film Removal in Diffusion-
`Controlled Plasma Etching,
`J. Electrochem. Soc.: Solid-
`State Science and
`Technology, Vol. 132, No.
`3 (1985) 648–656
`
`Alkire
`
`March 1985
`
`1005
`
`
`
`5
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`E.
`
`The Asserted Ground of Unpatentability
`Petitioner challenges the patentability of claims 1–29 of
`the ’849 patent on the following ground:
`Challenged Claims
`References
`Basis
`Alkire and Galewski
`§ 103(a) 1–29
`
`
`
`II. ANALYSIS
`
`A.
`
`Claim Interpretation
`The’849 patent has expired. Ex. 1001 at [22] (application filed May
`3, 1995); see Pet. 15. For claims of an expired patent, the Board’s claim
`interpretation is similar to that of a district court. See In re Rambus, Inc.,
`694 F.3d 42, 46 (Fed. Cir. 2012). Claim terms are given their ordinary and
`customary meaning as would be understood by a person of ordinary skill in
`the art at the time of the invention, and in the context of the entire patent
`disclosure. In re Translogic Tech., Inc., 504 F.3d 1249, 1257 (Fed. Cir.
`2007). Only those terms in controversy need to be construed, and only to
`the extent necessary to resolve the controversy. See Vivid Techs., Inc. v. Am.
`Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999).
`For purposes of this Decision, based on the record before us, we
`determine that it is necessary to address the interpretation of the claim term
`“surface reaction rate constant” as set forth in claims 1, 5, 10, 14, 20, 22, 26,
`27, and 29.
`“surface reaction rate constant”
`1.
`Petitioner contends that the term “surface reaction rate constant”
`should be interpreted to mean “a temperature-dependent reaction rate
`constant for the chemical reaction between a gas phase etchant and the
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`surface of an etchable material.” Pet. 16. In support of its contention,
`Petitioner notes that the Specification “refers to the term ‘surface reaction
`rate constant’ solely as the constant labeled ks,” and contends that the
`Specification “teaches that ks is a temperature dependent quantity that relates
`the etching rate to the ‘concentration [of gas phase etchant] above an
`etchable material film surface.” Id. at 16–17 (quoting Ex. 1001, 10:33–35).
`According to Petitioner, “[t]he concentration of the gas phase etchant in
`conjunction with the etch rate provides the reaction rate of the chemical
`reaction,” and, therefore, “ks, which is temperature dependent, is the
`constant for the reaction rate for the chemical reaction of the gas-phase
`etchant and surface material.” Id. at 17. Patent Owner does not address the
`interpretation of any of the recited claim terms.
`Based on the record before us, we are persuaded that Petitioner’s
`interpretation is consistent with the ordinary and customary meaning of
`“surface reaction rate constant” as would be understood by a person of
`ordinary skill in the art at the time of the invention, and in the context of the
`entire patent disclosure. Petitioner’s proposed interpretation is also
`consistent with the ’849 patent’s prosecution history, where, as Petitioner
`notes, the applicant “defined the surface reaction rate constant as a
`temperature dependent quantity relating to the chemical reaction between a
`gas phase etchant and the surface of an etchable film.” Pet. 17; see also
`Ex. 1002, 1101 (“The surface reaction rate constant, however, depends
`predominantly upon temperature, as defined throughout the present patent
`specification, but notably by the equation at page 11 line 16.”).
`
`
`1 The cited page numbers in Ex. 1002 refer to the numbers added by
`Petitioner in the bottom right corner of the page.
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`Therefore, for purposes of this Decision, we interpret “surface
`reaction rate constant” to mean “a temperature-dependent reaction rate
`constant for the chemical reaction between a gas phase etchant and the
`surface of an etchable material.”
`B.
`Obviousness over Alkire and Galewski
`Petitioner contends that the subject matter of claims 1–29 is
`unpatentable under 35 U.S.C. § 103(a) as having been obvious over the
`combined teachings of Alkire and Galewski. Pet. 29–79. Petitioner relies
`on the Declaration of David B. Graves (“the Graves Declaration,” Ex. 1003)
`in support of its contentions. Id.
`Overview of Alkire
`1.
`Alkire is directed to the formulation of a mathematical model “to
`analyze transient behavior during film removal from closely spaced wafers
`in a barrel plasma etching reactor.” Ex. 1005, 1.2 “The analysis relates the
`effect of geometric and operating variables to process characteristics such as
`etch uniformity, over-etch exposure, and throughput.” Id. “Regions of
`operating conditions that permit etch uniformity within specified tolerances
`are found, and optimum settings for inter-wafer spacing and reactor pressure
`to achieve maximum throughput are calculated.” Id. Alkire teaches that
`“[e]tch uniformity and throughput are of particular importance in any plasma
`etching process,” and that “[p]arameters that affect uniformity and
`throughput include RF power input, chamber pressure, gas flow rate and
`distribution, wafer spacing, wafer diameter, and temperature.” Id. at 1–2.
`
`
`2 The cited page numbers Ex. 1005 refer to the numbers added by Petitioner
`in the bottom right corner of the page.
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`Alkire Figure 2 is reproduced below.
`
`
`Figure 2 is a schematic of the radially symmetric region between two
`successive wafers that are facing each other. Id. at 2. Before etching begins,
`a uniform-thickness film exists on the wafer surface. Id. “To an extent that
`depends upon operating conditions, the etch rate is highest on the periphery
`of the wafer,” and, therefore, film in this region clears first. Id. Figure 2
`illustrates this, showing that the “film has been cleared entirely from the
`outer portion of the wafer, while the inner region is yet to clear.” Id.
`Alkire makes several assumptions to “preserve the salient features of
`the system and also streamline the task of computation,” including that
`“[t]he spacing between adjacent wafers is sufficiently smaller than the wafer
`radius so that significant concentration variations occur only in the radial
`direction,” “[t]he etching reaction is first order” and “proceeds to completion
`at or near the film surface,” and “[t]he concentration of etchant at the wafer
`edge remains constant during the etch cycle.” Id. Alkire provides two
`governing equations: Equation [1] that gives “the thickness of etchable
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`material left at a certain location and time,” and Equation [2] that is the
`conservation equation for the etching species, as set forth below.
`
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`Id. Alkire defines h0 as the initial film thickness (cm), k2 as the etch rate
`constant (cm/s), Χ as the moles of etchant species consumed per cm3 of film
`etched (mol/cm3), c as the etchant concentration (mol/cm3), h as the film
`thickness (cm), r as the radial position (cm), t as time (s), D as the etchant
`diffusivity (cm2/s), L as the wafer separation distance (cm), k1 as the volume
`recombination reaction rate constant (cm6/(mol)2/s), A2 as the parent
`molecule, vo as the random thermal velocity of etchant species (cm/s), w as
`the wall recombination coefficient, c0 as the etchant concentration at the
`wafer edge (mol/cm3), and R0 as the wafer radium (cm). Id. at 8–9.
`Alkire then “rewrite[s] the governing equations in terms of
`dimensionless quantities” that it defines, resulting in dimensionless
`Equations [6] and [7]. Id. at 3. According to Alkire, “[b]y solving Eq. [6]
`and [7], the effect of process parameters (c0, P, D, k’s) and of geometric
`factors (L, R0) on etch uniformity, overetch exposure, and total etch time can
`be determined,” and, “[i]n particular, optimum conditions for high
`throughput can be identified.” Id. Alkire states that these “[d]imensionless
`groupings of system parameters were used to compile behavior and to reveal
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`scale-up principles,” and that “[t]he model can be extended without much
`difficulty to handle more complex situations.” Id. at 8. Alkire concludes
`that “[t]he use of mathematical models can assist in organizing scientific
`concepts into strategies for engineering design.” Id.
`Overview of Galewski
`2.
`Galewski is directed to characterizing “[a] tubular hot-wall silicon
`epitaxial reactor operated in the selective deposition regime . . . for growth
`rate uniformity in both the radial and longitudinal directions.” Ex. 1007,
`Abs. Galewski explains that “[t]ypically, epitaxial deposition of silicon
`requires high temperatures that are not compatible with hot-wall reactors
`because of the severe depletion effects that result,” but “it is possible with
`careful consideration of the reactor design, deposition conditions, and wafer
`cleaning to use low deposition temperatures that reduce depletion effects
`while still resulting in defect-free epitaxial silicon.” Id. at 1.3 Galewski uses
`growth rate data produced in an experimental reactor “to formulate a
`physical model that predicts the deposition uniformity in both the radial and
`longitudinal directions,” and uses the model “to propose improvements to
`the existing reactor, and to propose a design for a system that can
`accommodate 100 wafers of 200 mm diameter.” Id.
`Analysis
`3.
`Petitioner contends that the combination of Alkire and Galewski
`discloses or suggests all of the elements of claim 1. Pet. 32–46. For
`example, Petitioner contends that Alkire teaches “defining etch rate data
`comprising an etch rate and a spatial coordinate which defines a position
`
`
`3 The cited page numbers Ex. 1007 refer to the numbers added by Petitioner
`in the bottom right corner of the page.
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`within said relatively non-uniform etching profile on said substrate” because
`“[t]he thickness of etchable material as a function of time disclosed in Alkire
`is etch rate data, where the change in h(r,t) as a function of time is an etch
`rate at a spatial coordinate (given by r in cylindrical coordinates) over time
`(t).” Id. at 36. Petitioner acknowledges that “Alkire does not explicitly
`disclose measuring the etch rate at any spatial coordinates,” and contends
`that “it would have been obvious to a PHOSITA [person having ordinary
`skill in the art] to combine Alkire with the experimental measurement of
`reaction rate and the use of that data in modeling as taught by Galewski.”
`Id. In particular, Petitioner contends that “Galewski teaches measuring the
`reaction rate data for a reaction between a gas-phase deposition precursor
`and a film on a substrate at a number of spatial coordinates,” and “discloses
`measuring ‘[f]ilm thicknesses . . . with a stylus profiler.’” Id. at 36–37
`(quoting Ex. 1007, 3).
`According to Petitioner, “combining the teaching from Galewski of
`using experimentally measured data in modeling the reaction would have
`been an obvious improvement of the theoretical Alkire model to a
`PHOSITA.” Pet. 37. Petitioner argues that “a PHOSITA would have
`recognized that Alkire provides a robust model for the reaction between a
`gas phase etchant and a substrate film, but that no experimental data to test
`and validate that model was provided.” Id. at 29. Thus, Petitioner argues,
`“[a] PHOSITA would have been motivated to improve the model disclosed
`in Alkire by using experimental data to provide independent confirmation of
`the accuracy of the model as taught in Galewski.” Id. at 29–30 (citing
`Ex. 1003 ¶ 119). Petitioner further argues that “both Alkire and Galewski
`disclose the known technique of modeling a gas-phase and substrate reaction
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`using a first-order mathematical model,” and are “directed to chemical
`reactors for manufacturing semiconductor devices and address non-
`uniformity in semiconductor plasma processing.” Id. at 30–31.
`We are persuaded, based on the current record, that Petitioner’s
`discussion of the particular operations and structures in Alkire and Galewski,
`and the explanations in the Petition and the Graves Declaration, are
`sufficient to establish a reasonable likelihood that Petitioner would prevail in
`demonstrating that claim 1 would have been obvious over the combined
`teachings of Alkire and Galewski. Petitioner’s contentions are supported
`adequately by Dr. Graves, who testifies, for example, that “[t]he reaction
`rate data in Galewski is for the deposition growth rate in an LPCVD [low
`pressure chemical vapor deposition], but it was well known that plasma
`etching and plasma chemical vapor deposition exhibit the same behavior.”
`Ex. 1003 ¶ 121 (citing Ex. 1005, 1, 4; Ex. 1012; Ex. 1013; Ex. 1010; Ex.
`1008). Dr. Graves further testifies that “Galewski teaches a method for
`calculating [surface reaction rate constant] ks
`’ that is essentially identical to
`the method disclosed in the 849 Patent” (id.¶ 112) which is “unsurprising, as
`both reactions are first order surface reactions of a diffusion limited reactant
`and both reflect the non-uniform diffusion of the gas-phase reactant across
`the substrate surface with very similar assumptions” (id. ¶ 111). See
`generally id. ¶¶ 103–115.
`We have considered Patent Owner’s arguments and, based on the
`record before us, do not find them to be persuasive. For example, Patent
`Owner argues that a person having ordinary skill in the art “would never
`combine modeling transient behavior during film removal in a barrel reactor
`of Alkire with the modeling of a hot wall reactor for selective epitaxial
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`growth of silicon of Galewski.” Prelim. Resp. 4. According to Patent
`Owner, “[a] PHOSITA would not have been motivated to improve the
`model disclosed in Alkire by using silicon deposition experimental data for
`epitaxial films given that silicon deposition experimental data are
`incompatible and would in no way be expected to relate to the plasma
`etching taught by Alkire.” Id. at 3–4. Petitioner, however, is not arguing
`that a PHOSITA would incorporate Galewski’s measured data into Alkire’s
`model; instead, as we understand it, Petitioner is arguing that Galewski
`teaches a PHOSITA to conduct experiments to determine reaction rate data
`and then extract a surface reaction rate constant from the experimental data,
`thus “connect[ing] the purely mathematical model of Alkire to empirical
`data for the reaction rate data to extract the surface reaction rate for defined
`process conditions to test, validate, and improve Alkire’s model.” Ex. 1003
`¶ 139; see also id. ¶ 119 (A person of ordinary skill in the art “would have
`been motivated to improve the theoretical model of Alkire with the use of
`actual measured reaction rate data as taught in Galewski.”); Pet. 29–30 (“A
`PHOSITA would have been motivated to improve the model disclosed in
`Alkire by using experimental data to provide independent confirmation of
`the accuracy of the model as taught in Galewski.”); id. at 37–38 (“Applying
`Galewski’s empirical rate measurement and use of empirical data in
`extracting the surface reaction rate constant in the model teaching to the
`plasma etching model of Alkire would allow a PHOSITA to use empirical
`data to improve the Alkire model for plasma etching.”). Patent Owner does
`not address whether a person having ordinary skill in the art would have
`looked to Galewski for this purpose.
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`Patent Owner also argues that “Alkire specifically teaches away from
`the ’849 patent,” because Alkire “takes the position that ‘purely empirical
`programs of development can be time consuming,’ but rather uses a pure
`mathematical model without actual etch profile data.” Prelim. Resp. 6. The
`fact that Alkire describes a mathematical model does not necessarily mean,
`however, that it teaches away from using experimental data. “A reference
`may be said to teach away when a person of ordinary skill, upon reading the
`reference, would be discouraged from following the path that was taken by
`the applicant.” In re Gurley, 27 F.3d 551, 553 (Fed. Cir. 1994). A reference
`does not teach away if it merely expresses a general preference for an
`alternative invention from amongst the options available to the ordinarily
`skilled artisan, and the reference does not discredit or discourage
`investigation into the invention claimed. In re Fulton, 391 F.3d 1195, 1201
`(Fed. Cir. 2004). Alkire’s statement that “purely empirical programs of
`development can be time consuming” does not criticize, discredit, or
`disparage the use of empirical data to improve the fabrication of a device.
`Patent Owner further argues that because the requirements and
`techniques used in silicon epitaxy and film removal are different, a
`“PHOSITA would not have recognized that the surface-rate constants of
`Alkire and Galewski model the same temperature-dependent reaction rate
`constant as in the 849 Patent.” Prelim. Resp. 10. Patent Owner does not
`provide sufficient explanation or evidence to support this argument.
`Petitioner, on the other hand, provides testimony from Dr. Graves that
`“Galewski discloses a ‘surface-rate constant for deposition’ (ks
`’) that is a
`reaction rate constant for the chemical reaction between a gas phase and the
`surface of a material” (Ex. 1003 ¶ 142), and provides analysis setting forth
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`how Galewski’s surface-rate constant ks’ is determined using the “same basic
`
`relationship between the etch rate and the surface reaction rate constant”
`disclosed in the ’849 patent (id. ¶ 143). See id. ¶¶ 141–145. Dr. Graves
`further testifies that Galewski’s surface-rate constant for deposition “differs
`from the surface reaction rate constant claimed in the 849 Patent only in that
`Galewski is directed to chemical vapor deposition and the surface reaction
`rate constant is directed to plasma etching,” and a person having ordinary
`skill in the art “would have recognized that the surface-rate constant of
`Galewski models the same temperature-dependent reaction rate constant as
`in the 849 Patent.” Id. ¶ 145. Therefore, we do not find Patent Owner’s
`unsupported arguments regarding Galewski’s surface-rate reaction constant
`to be persuasive on this record.
`In view of the foregoing, we determine that Petitioner has
`demonstrated a reasonable likelihood of prevailing on its assertion that claim
`1 of the ’849 patent would have been obvious over the combined teachings
`of Alkire and Galewski. Having decided that Alkire and Galewski evince a
`reasonable likelihood that at least one of the claims challenged in the
`Petition is unpatentable, we exercise our discretion under 37 C.F.R. § 42.108
`to have the review proceed on all claims challenged as obvious over the
`combined teachings of Alkire and Galewski.
`
`
`III. CONCLUSION
`Based on the arguments in the Petition and Preliminary Response, and
`the evidence of record, we determine that Petitioner has demonstrated a
`reasonable likelihood that it would prevail on its challenge that claim 1 of
`the ’849 patent is unpatentable. In keeping with our mission of resolving
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`patent validity disputes in a just, speedy, and inexpensive manner, we
`exercise our discretion to institute an inter partes review on all of the
`challenged claims.
`The Board has not made a final determination as to the patentability of
`any challenged claim.
`
`
`IV. ORDER
`In consideration of the foregoing, it is hereby
`ORDERED that inter partes review is granted as to claims 1–29 of
`the ’849 patent with respect to the following ground:
`Whether claims 1–29 are unpatentable under 35 U.S.C. § 103(a) as
`obvious over the combination of Alkire and Galewski;
`FURTHER ORDERED that, pursuant to 35 U.S.C. § 315(c) and
`37 C.F.R. § 42.4, notice is hereby given of the institution of a trial
`commencing on the entry date of this Decision; and
`FURTHER ORDERED that no ground other than that specifically
`granted above is authorized for inter partes review as to the claims of the
`’849 patent.
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`PETITIONER:
`
`Jeremy Jason Lang
`Jared Bobrow
`Robert Stephen Magee
`WEIL, GOTSHAL & MANGES LLP
`jason.lang@weil.com
`jared.bobrow@weil.com
`robert.magee@weil.com
`
`Chad Campbell
`Jonathan McFarland
`Philip A. Morin
`PERKINS COIE LLP
`cscampbell@perkinscoie.com
`jmcfarland@perkinscoie.com
`
`David M. Tenant
`Nathan Zhang
`WHITE & CASE LLP
`dtennant@whitecase.com
`nathan.zhang@whitecase.com
`
`
`
`PATENT OWNER:
`
`Christopher Frerking
`chris@ntknet.com
`
`
`
`PATENT OWNER:
`
`Christopher Frerking
`chris@ntknet.com
`
`
`18
`
`
`
`