Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate
2007-03-06
2007-03-06
Baumeister, B. William (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
C257SE33058
Reexamination Certificate
active
11303297
ABSTRACT:
It is an object of the invention to provide an improved solid image-pickup device which is compact in size and low in production cost. The solid image-pickup device is so formed that its semiconductor substrate has on its surface an image-pickup area having a plurality of light sensors arranged thereon. A transparent plate having the same shape and the same size as those of the semiconductor substrate when viewed as a plan view is bonded to the surface of the semiconductor substrate. A plurality of bonding pads are formed on the surface of the semiconductor substrate and arranged around the image-pickup area. Further, a plurality of through holes are formed through the semiconductor substrate, extending from the lower surfaces of the bonding pads to the back surface of the semiconductor substrate. An insulating film is tightly attached to the inner surface of each of the through holes, while another insulating film is tightly attached to the back surface of the semiconductor substrate. Further, each of the through holes is filled with an electrically conductive material, thereby effecting an electric connection between the bonding pads and the copper wire of the flexible circuit substrate bonded to the back surface of the semiconductor substrate.
REFERENCES:
patent: 2002-057271 (2002-02-01), None
Baumeister B. William
Depke Robert J.
Farahani Dana
Rockey, Depke, Lyons & Kitzinger LLC
Sony Corporation
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