Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Including dielectric isolation means
Reexamination Certificate
2006-05-09
2006-05-09
Dickey, Thomas L. (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Including dielectric isolation means
C257S620000, C438S361000
Reexamination Certificate
active
07042063
ABSTRACT:
A semiconductor wafer is disclosed in which a high concentration impurity layer is formed in a semiconductor wafer to a predetermined depth, in order to electrically connect electrodes formed on the principal face of the wafer without forming trenches and through holes in the wafer. An n++diffusion region is formed in the dicing region of a semiconductor wafer by ion implanting or diffusion. The diffusion region extends to an n++layer formed deep in the semiconductor wafer. The width of the n++diffusion region is made wide enough to account for the blade width of a dicer, so that an n++diffusion region remains at the outer periphery of each of the chips divided by the dicing operation. Bump electrodes on the wafer surface electrically connect with the n++layer deep in the semiconductor through the n++diffusion region.
REFERENCES:
patent: 4040878 (1977-08-01), Rowe
patent: 4148053 (1979-04-01), Bosselaar et al.
patent: 4544937 (1985-10-01), Kroger
patent: 5663582 (1997-09-01), Nishizawa et al.
patent: 5852326 (1998-12-01), Khandros et al.
patent: 2001/0028083 (2001-10-01), Onishi et al.
patent: 10-50772 (1998-02-01), None
patent: 2000-164607 (2000-06-01), None
patent: 2000-277542 (2000-10-01), None
Dickey Thomas L.
Fuji Electric Device Technology Co. Ltd.
Rossi, Kimms & McDowell LLP.
LandOfFree
Semiconductor wafer, semiconductor device, and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor wafer, semiconductor device, and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor wafer, semiconductor device, and process for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3612636