Reworkable compositions of oxirane(s) or...

Details Reworkable compositions of oxirane(s) or... Reworkable compositions of oxirane(s) or...

Filed on

2006-03-14

Date issued

2006-03-14

Examiner

Sellers, Robert (Department: 1712)

Patent Class

Synthetic resins or natural rubbers -- part of the class 520 ser

SubClass

Synthetic resins

SubSubClass

Mixing of two or more solid polymers; mixing of solid...

Other Related Categories

C438S127000, C525S486000, C525S488000, C525S504000, C525S507000, C525S524000, C525S526000, C549S001000, C549S090000, C549S516000, C549S523000, C549S525000, C549S531000, C549S543000, C549S544000

Type

Reexamination Certificate

Status

active

Patent number

07012120

Description

ABSTRACT:
This invention relates to thermosetting resin compositions useful for mounting onto a circuit board semiconductor devices, such as CSPs, BGAs, LGAs and the like, each of which having a semiconductor chip, such as LSI, on a carrier substrate. The compositions of this invention are reworkable when subjected to appropriate conditions.

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