Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2008-01-22
2008-01-22
Sellers, Robert (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C257S793000, C438S127000, C523S443000, C524S544000, C524S560000, C524S567000, C524S571000, C524S574000, C524S575000, C524S577000, C524S578000, C524S579000, C524S588000, C524S590000, C524S601000, C524S606000, C524S609000, C524S611000, C524S612000, C525S390000, C525S396000, C525S507000, C525S524000
Reexamination Certificate
active
07321005
ABSTRACT:
A method of making an encapsulant composition. The method includes: providing a first quantity of resin material of epoxy or cyanate ester resins; adding to the first quantity of resin material a second quantity of flexibilizing agent; adding to the first quantity of resin material a third quantity of filler material; blending the resin material. After adding the flexibilizing agent, adding the filler material, and blending the resin material, applying the composition to a gap between a substrate and a semiconductor chip. After applying the composition to the gap, pregelling the composition. After pregelling the composition, substantially curing the composition.
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International Business Machines - Corporation
Schmeiser Olsen & Watts
Sellers Robert
Steinberg William H.
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