Patent ID: 8802506

Claim:
A method of manufacturing a semiconductor device sealed in a cured silicone body, the method comprising the steps of: placing an unsealed semiconductor device into a mold; and subjecting a curable silicone composition which is fed into a space between the mold and the unsealed semiconductor device to compression molding; wherein the curable silicone composition comprises at least the following components: (A) an epoxy-containing silicone and (B) a curing agent for an epoxy resin; and wherein component (A) is (A 1 ) an organosiloxane which contains in one molecule at least two epoxy-containing univalent organic groups and which is represented by average unit formula: (R 1 3 SiO 1/2 ) a (R 2 2 SiO 2/2 ) b (R 3 SiO 3/2 ) c wherein R 1 , R 2 , and R 3 may be the same or different and designate optionally substituted univalent hydrocarbon groups or epoxy-containing univalent groups, with the proviso that 20 mole % or more of R 3 's are aryl groups; and “a”, “b”, and “c” are numbers which satisfy the following conditions: 0≦a≦0.8; 0≦b≦0.8; 0.2≦c≦0.9; and (a+b+c)=1; and/or (A 2 ) a diorganosiloxane represented by the following general formula: A-R 5 —(R 4 2 SiO) m R 4 2 Si—R 5 -A wherein R 4 's designate optionally substituted univalent hydrocarbon groups which are free of unsaturated aliphatic bonds; R 5 's designate bivalent organic groups; and A's designate siloxane residual radicals represented by the following average unit formula: (XR 4 2 SiO 1/2 ) d (SiO 4/2 ) e wherein R 4 is the same as defined above; X is a single bond for bonding to R 5 , a hydrogen atom, a group represented by R 4 , an epoxy-containing univalent organic group, or an alkoxysilylalkyl group, with the proviso that at least one X of the above formula is a single bond and at least two X's are epoxy-containing univalent organic groups; “d” is a positive number; “e” is a positive number; and “d/e” is a positive number between 0.2 and 4; and “m” is an integer equal to or greater than 1.