Seal ring structures with reduced moisture-induced...

Details Seal ring structures with reduced moisture-induced... Seal ring structures with reduced moisture-induced...

2011-02-22

2011-02-22

Le, Thao X (Department: 2892)

Active solid-state devices (e.g., transistors, solid-state diode

Regenerative type switching device

With means to increase breakdown voltage

C257S208000, C257S209000, C257S127000, C438S140000

Reexamination Certificate

active

07893459

ABSTRACT:
A semiconductor chip includes a seal ring adjacent to edges of the semiconductor chip; an opening extending from a top surface to a bottom surface of the seal ring, wherein the opening has a first end on an outer side of the seal ring and a second end on an inner side of the seal ring; and a moisture barrier having a sidewall parallel to a nearest side of the seal ring, wherein the moisture barrier is adjacent the seal ring and has a portion facing the opening.

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