Patent ID: 6268645
Filing Date: 2001-07-31
Classification: H01L,H05K

Abstract:
A semiconductor device comprising:a semiconductor chip;a tape-type substrate which has a base film having a first thermal expansion coefficient provided with a device hole formed in a location where the semiconductor chip is mounted, a wiring pattern whose end portions constitute inner leads connected to the semiconductor chip and terminal connecting portions provided with external connecting terminals, and a resist which has a second thermal expansion coefficient different from that of the base film and is formed on the base film so as to protect the wiring pattern except the terminal connecting portions;an encapsulation resin which covers the device hole including the semiconductor chip and a part of the resist;resin stoppers at the corners of the device hole; andstress relieving portions which are formed in the resist at locations on the resist facing the corners of the device hole, over said resin stoppers, so as to relieve internal residual stress caused in the resist.