Patent ID: 6940177

Claim:
A semiconductor package comprising: a semiconductor wafer having an active surface comprising at least one integrated circuit, wherein each integrated circuit has a plurality of bond pads; and at least one cured silicone member covering at least a portion of the active surface, wherein at least a portion of each bond pad is not covered by the silicone member, the silicone member has a coefficient of linear thermal expansion of from 60 to 280 μm/m° C. between −40 and 150° C. and a modulus of from 1 to 300 MPa at 25° C., and the silicone member is prepared by a method comprising the steps of: (i) printing a silicone composition on the active surface to form a silicone deposit, wherein the silicone composition comprises: (A) an organopolysiloxane containing an average of at least two silicon-bonded alkenyl groups per molecule with any remaining silicon-bonded organic groups being independently selected from monovalent hydrocarbon groups free of aliphatic unsaturation or monovalent halogenated hydrocarbon groups free of aliphatic unsaturation, (B) an organohydrogensiloxane containing an average of at least two silicon-bonded hydrogen atoms per molecule in a concentration sufficient to cure the composition, (C) an effective amount of an inorganic filler having a surface area less than 25 m 2 /g, and (D) a catalytic amount of a hydrosilylation catalyst; and (ii) heating the silicone deposit for an amount of time sufficient to form the cured silicone member.