Light sensor receiving light from backside

Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation

Reexamination Certificate

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Details

C257S414000, C257SE21511, C257SE23126

Reexamination Certificate

active

08053852

ABSTRACT:
The invention is directed to enhancement of performance of a back surface incident type semiconductor device having a light receiving element and a manufacturing method thereof without increasing a manufacturing cost. A supporting body is attached to a front surface of a semiconductor substrate formed with a light receiving element and its pad electrode. Then, the supporting body is etched to form a via hole penetrating the supporting body and exposing the pad electrode. Then, a wiring connected to the pad electrode and extending onto a front surface of the supporting body through the via hole is formed. Lastly, the semiconductor substrate is separated into a plurality of semiconductor dies by dicing. The semiconductor device is mounted so that the supporting body faces a circuit board.

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