SEL EXHIBIT 2017
`
`INNOLUX CORPORATION v. PATENT OF SEMICONDUCTOR ENERGY
`
`LABORATORY CO., LTD.
`
`|PR2013—00066
`
`
`
`INNOLUX CORPORATION v. PATENT OF SEMICONDUCTOR ENERGY
`
`LABORATORY CO., LTD.
`
`|PR2013—00066
`
`
`
`Micro-tee Co., Ltd - Screen printer - Practice of screen printing
`
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`Print Test
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`Micro-tee Co., Ltd - Screen printer - Practice of screen printing
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` Practice of Screen Printifig
`
`1.1mp1ementation of screen printing
`
`The three conditions listed below are required for optimum screen printing.
`1) The setting of the optimum conditions for the paste is important.
`2) Optimized screen mask specifications
`3) Optimized printing conditions by screen printing
`
`QpMnum
`condMons
`forthe paste
`
`
`
` specwmaflons
`Opfinfizedpfinfing*$
`
`‘
`conwfions
`
`4) Doing screen printing.
`Screen printing requires a paste, a screen, and a screen printer. The specifications of each
`of these items are shown below.
`
`A. Paste :
`
`Type, ratios of filler, resin, solvent, additive, etc., viscosity
`
`B. Screen :
`
`Silk gauze material, tension, type of silk gauze frame, bias
`
`C. Screen
`printer :
`
`Type and hardness of squeegee, attack angle, clearance,
`squeegee and scraper speeds, pressure, back pressure
`
`5) For better printing
`What is most important for better printing is the rheology of the paste. Printing quality
`depends greatly on it. The next important factor is the proper specifications of the screen
`mask. Although the optimum paste and screen mask almost determine printing quality,
`there is one more requirement for better printing: the optimum printing conditions of the
`screen printer.
`
`2. The basic concept of Micro-tee.
`
`1) MICRO SQUEEGEE (Micro—tec’s original)
`MICRO SQUEEGEE has the following advantages
`A. The ink discharge force can be stabilized at a fixed angle.
`B. It ensures higher printing accuracy under uniform pressure in combination with a low-
`pressure system.
`
`
`
`Micro—tee C0,, Ltd - Screen printer — Practice of screen printing
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`Pressure
`
`Glass epoxy material
`
`Printing direction
`
`nijjfllifllllllilililliiil
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`Jr
`
`
`
`Urethane rubber
`1’
`
`
`
`
`The attack angle is fixed
`
`l
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`l
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`2) Vertical float type air balance system (Micro—tec’s original)
`Our air balance system is proud of the following features
`A. With a printing system designed for printing pressure, images can be printed with a
`high degree of reproducibility, irrespective of the operator’s skills or capability.
`B. Images can be printed under low pressure (low-pressure system).
`C. The optimum printing conditions are available in combination with MICRO
`SQUEEGEE.
`D. High productivity: The air balance system imposes less burdens on the plate and the
`squeegee, enabling them to serve for many years to come.
`
`
`
`A Squeege head
`
`3) The printing conditions can be set digitally.
`The squeegee pressure, the scraper pressure, and the back pressure can be individually set
`with the aid of a precision regulator and digital display.
`
`
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`Micro-tee Co., Ltd - Screen printer — Practice of screen printing
`
`
`
`4) Low vibration
`Adopted for squeegee travel is a linear travel mechanism comprising an AC servomotor
`and a steel belt (PAT-P), featuring low vibration and high linearity.
`5) Highly rigid structure
`To maintain the set optimum printing conditions and reduce the effect of the long secular
`change in machine accuracy on printing accuracy, the movement of the drive unit is
`minimized, and the printing plate frame is fastened to a highly rigid base supported by four
`columns.
`
`Highly rigiti structure w ith four columns
`
`
`Printing Plateframe {_ "I i
`The height ofthe
`eww_
`’ "
`i
`printing plate frame is 4 “W ""““""’i ijji‘
`‘
`I
`i
`changed with the four
`[
`columns.
`'5
`
`The highly rigid base (ofcasiing) ‘ The parinting plate
`is supported by four columns.
`frame is fastened.
`
`3. Four mechanisms of screen printing
`
`Four steps are carried out in screen printing.
`
`
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`Micro-tee Co., Ltd - Screen printer - Practice of screen printing
`
`)9}
`
`Squeegee direction
`
`
`
`
`Rolling
`
`x
`
`Subs‘rtrae
`
`1) Rolling
`2) Discharge
`
`
`
`Substrate
`
`3) Plate separation
`
`4) Leveling
`
`4. Four conditions for proper printing
`
`1) Attack angle
`
`
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`Micro-tec Co., Ltd - Screen printer - Practice of screen printing
`
`r” if
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`ewe
`Squeegee direction
`
`Paste discharge
`,
`
`force‘
`
`
`'
`Substrate
`Attack angle: Large In) Paste discharge force : Low
`
`2) Squeegee pressure
`
`355%
`Squeegee
`
`
`Paste discharg
`‘ force
`
`
`Substrate
`'
`7
`Attack angle : Small III) Paste discht
`
`‘ Squeegee pressure
`I
`I H)
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`’1‘
`(r
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`are"
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`fr].
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`eerie
`Squeegee direction
`
`SUD strate
`
`3) Clearance
`
`Squeegee
`
`Squeegee stroke
`
`
` ideal plate separation
`
`
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`Micro-tee Co., Ltd — Screen printer — Practice of screen printing
`
`Pattern diagram from top of the screen
`
`Screen plate
`
`'
`
`/
`
`4) Squeegee speed
`
`0 Relationship with paste viscosity
`
`Paste viscosity
`Squeegee speed
`High 9 Reduce
`Low » Increase
`° Relationship with plate separation
`Delayed plate 9 Reduce the squeegee speed to enable plate
`separation
`separation to follow it.
`
`5. Ideas for realizing high-accuracy printing (summary)
`
`1) Low clearance
`2) Quick plate separation: Use a high-tension plate.
`3) High-strength plate frame
`4) Printing under low pressure
`5) Stabilized squeegee travel
`6) Rigidity and accuracy of printer: Parallelism among the table, the squeegee, and the plate
`7) Working environment: Environmental control by temperature regulation
`
`
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`Copyright Micro-tec Co., Ltd. All rights reserved.
`
`
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