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US 2014/0179827 A1Published application
Quaternary phosphonium salt, epoxy resin composition for encapsulating semiconductor device and including the quaternary phosphonium salt, and semiconductor device encapsulated with the epoxy resin composition
AssigneeCheil Industries Inc.
InventorsMin Gyum KIM, Seung HAN, Hwan Sung CHEON
Life of this patent
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Abstract
A quaternary phosphonium salt, an epoxy resin composition including the quaternary phosphonium salt, and a semiconductor device encapsulated with the epoxy resin composition, the quaternary phosphonium salt being represented by Formula 1:
Claims20
A quaternary phosphonium salt represented by Formula 1:
- wherein:
- R1, R2, R3, and R4 are each independently a substituted or unsubstituted C1-C30 hydrocarbon group or a substituted or unsubstituted C1-C30 hydrocarbon group including at least one heteroatom;
- X is a substituted or unsubstituted C1-C30 hydrocarbon group or a substituted or unsubstituted C1-C30 hydrocarbon group including at least one heteroatom;
- Y is a substituted or unsubstituted C1-C30 hydrocarbon group or Si substituted with one to three substituted or unsubstituted C1-C30 hydrocarbon groups;
- n and m are each independently an integer of 1 to 6, provided that when Y is Si, a sum of m and a number of substituents on the Si is a maximum of 4;
- and
- l is a number greater than 0 and up to 6.
4 more elements
The quaternary phosphonium salt as claimed in 1, wherein m is 2 or 3.
An epoxy resin composition, comprising:
- an epoxy resin,
- a curing agent,
- a curing accelerator, and
- an inorganic filler,
- wherein the curing accelerator includes a quaternary phosphonium salt represented by Formula 1:
- wherein, in Formula 1:
- R1, R2, R3, and R4 are each independently a substituted or unsubstituted C1-C30 hydrocarbon group or a substituted or unsubstituted C1-C30 hydrocarbon group including at least one heteroatom;
- X is a substituted or unsubstituted C1-C30 hydrocarbon group or a substituted or unsubstituted C1-C30 hydrocarbon group including at least one heteroatom;
- Y is a substituted or unsubstituted C1-C30 hydrocarbon group or Si substituted with one to three substituted or unsubstituted C1-C30 hydrocarbon groups;
- n and m are each independently an integer from 1 to 6, provided that when Y is Si, a sum of m and a number of substituents on the Si is a maximum of 4;
- and
- l is a number greater than 0 and up to 6.
9 more elements
Dependencies are inferred from the claim text.