Method of manufacturing semiconductor device and resulting product
AssigneeHitachi, Ltd.
InventorsYoshiaki Wakashima, Hiroshi Suzuki
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Abstract
In sealing at least a semiconductor element portion of a semiconductor device by the use of a resin, the semiconductor element is covered with a stabilizer or with a resin containing the stabilizer. The stabilizer is adapted to check the migration of a mobile substance such as hydrochloric acid and a mobile ion such as chlorine ion existent within the resin. Owing to the fixation of the ion, the electrical characteristics of the semiconductor device are prevented from being degraded, and constituent parts in the semiconductor device are prevented from being corroded.
Claims24
A method for sealing a semiconductor device comprising covering a semiconductor element with a protective covering layer containing a metal-containing stabilizer which prevents the migration of mobile substances and mobile ions within the protective covering layer, said metal-containing stabilizer comprising a salt of an organic acid, an alcoholate, a phenolate or mercaptide, the metal component of said metal-containing stabilizer being selected from the group consisting of Ca, Mg, Sr, Cd, Zn, Sn and Pb.
A sealed semiconductor device comprising a semiconductor element having a protective covering layer covering a portion thereof, said protective covering layer containing a metal-containing stabilizer which prevents the migration of mobile substances and mobile ions within the protective covering layer, said metal-containing stabilizer comprising a salt of an organic acid, an alcoholate, a phenolate or mercaptide, the metal component of said metal-containing stabilizer being selected from the group consisting of Ca, Mg, Sr, Cd, Zn, Sn and Pb.
Dependencies are inferred from the claim text.