Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Solder wettable contact – lead – or bond
Reexamination Certificate
2008-04-04
2009-10-27
Dang, Trung (Department: 2892)
Active solid-state devices (e.g., transistors, solid-state diode
Combined with electrical contact or lead
Solder wettable contact, lead, or bond
C257S784000, C257SE23054, C438S111000, C438S112000
Reexamination Certificate
active
07608930
ABSTRACT:
This semiconductor device includes a semiconductor chip, and a lead arranged around the semiconductor chip to extend in a direction intersecting with the side surface of the semiconductor chip, and having at least an end farther from the semiconductor chip bonded to a package board, wherein a joint surface to the package board and an end surface orthogonal to the joint surface are formed on the end of the lead farther from the semiconductor chip, and a metal plating layer made of a pure metal is formed on the end surface.
REFERENCES:
patent: 2007/0126092 (2007-06-01), San Antonio et al.
patent: 2007/0176267 (2007-08-01), Abbott
patent: 2006-140265 (2006-06-01), None
Haga Motoharu
Kasuya Yasumasa
Dang Trung
Rabin & Berdo PC
Rohm & Co., Ltd.
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