Patent ID: 9397130
Filing Date: 2016-07-19
CPC Classification: H01L

Claim Text:
1. A method for manufacturing a semiconductor device, the method comprising: providing a first substrate on which a semiconductor layer is formed on a surface of the first substrate, the semiconductor layer having a first surface and a second surface opposite to the first surface; forming a plurality of microstructures on the second surface; forming a transparent dielectric layer on the second surface and covering the microstructures; bonding a second substrate to the transparent dielectric layer; removing the first substrate to expose the first surface; forming a grid shielding layer extending from the first surface toward the second surface to define the semiconductor layer into a plurality of pixel regions, wherein the grid shielding layer surrounds each of the pixel regions to separate the pixel regions from each other, and a depth of the grid shielding layer is greater than two-thirds of a thickness of the semiconductor layer; and forming a plurality of light-sensing devices respectively on the first surface in the pixel regions.