Patent ID: 9608031
Date: 2017-03-28
CPC Classifications: H01L

Claim:
1. A method for manufacturing a solid-state image sensor, the method comprising: preparing a semiconductor substrate including a photoelectric conversion portion; forming, on the semiconductor substrate, a structure comprising a first member, which has an insulating property, containing silicon oxide, and a second member, which has an insulating property, arranged on the first member and containing silicon carbide; forming an opening in a position over the photoelectric conversion portion in the structure by removing a part of the first member and a part of the second member; forming a third member, which has a transparent property, in the opening; and performing an annealing process after the forming of the third member, wherein the second member is formed at a first temperature in the forming the structure, and wherein the third member is formed at a second temperature lower than the first temperature.