Patent ID: 9608030
Date: 2017-03-28
CPC Classifications: H01L

Claim:
1. A method of manufacturing a solid-state imaging apparatus including an imaging region in which pixels are arranged, a connection region that surrounds the imaging region and includes an electrode pad, and an in-layer lens that is formed in the imaging region for each of the pixels, the method comprising: forming a refractive-index layer including a refractive-index material in the imaging region and the connection region, wherein the refractive-index material is formed on the electrode pad; forming the in-layer lens and an opening that exposes an upper surface of the electrode pad in the connection region by etching back the refractive-index material in the imaging region and in the connection region; and monitoring an emission wavelength caused by the electrode pad being etched by plasma while etching back the refractive-index material formed on the electrode pad.