Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Ball or nail head type contact – lead – or bond
Reexamination Certificate
2008-04-29
2008-04-29
Menz, Douglas M. (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Combined with electrical contact or lead
Ball or nail head type contact, lead, or bond
C257S774000, C257S698000
Reexamination Certificate
active
07365440
ABSTRACT:
A semiconductor device includes a second insulating film formed on a second surface of a semiconductor substrate whose first surface has been formed with a first insulating film and an electrode pad, and an opening is made in a portion of the second insulating film directly below the electrode pad. By using the second insulating film as a mask, a through hole is formed in the semiconductor substrate in such a manner that the through hole recedes from an opening edge of the first insulating film. A third insulating film is formed only on the inner wall of the through hole.
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Menz Douglas M.
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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