Patent ID: 11948960
Assignee: TONGFU MICROELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor packaging method, comprising:
providing a chip, wherein the chip includes:
a chip substrate, having a front surface and a back surface, wherein the front surface includes a photosensitive region,
a plurality of pads disposed at the front surface of the chip substrate and around the photosensitive region, wherein the chip substrate contains a through-hole formed from the back surface of the chip substrate, and the plurality of pads are exposed from the through-hole, and
a transparent protection layer over the front surface of the chip substrate, wherein the transparent protection layer covers the photosensitive region and the plurality of pads; and

electrically connecting each pad of the plurality of pads to a circuit board through a corresponding metal rewiring layer in the through-hole.