Patent ID: 6437408
Filing Date: 2002-08-20
Classification: H01L

Abstract:
A plasma damage protection cell having a floating N/P/N and P/N/P structure comprising:a silicon substrate having a plurality of active and field regions defined; a plurality of shallow trench isolation (STI) regions in said substrate; an N/P/N floating structure partially covering said shallow trench isolation region, and partially N+ drain; said N/P/N floating structure having a base portion, an emitter portion, and a collector portion; a P/N/P floating structure partially covering said shallow trench isolation region, and partially P+ drain; said P/N/P floating structure having a base portion, an emitter portion, and a collector portion; an NMOS device protected by said N/P/N floating structure; and a PMOS device protected by said P/N/P floating structure.