Patent ID: 8728847

Claim:
A method for manufacturing a solid-state imaging device comprising at least the steps of: forming photo sensor portions in a silicon layer; forming a matching mark within the silicon layer, the matching mark configured to position a color filter and an on-chip lens, wherein the matching mark extends from a first surface of the silicon layer to a second surface of the silicon layer, wherein the second surface of the silicon layer is attached to a substrate; forming a wiring portion above the silicon layer, wherein the wiring portion includes an insulative layer that overlays and is in contact with the first surface of the silicon layer, and wherein the insulative layer overlays and is in contact with the matching mark formed within the silicon layer; bonding another substrate onto the wiring portion; removing at least a portion of the substrate attached to the second surface of the silicon layer in response to performing the bonding of the another substrate onto the wiring portion, wherein the second surface of the silicon layer and a portion of the matching mark extending to the second surface of the silicon layer are exposed; and sequentially forming an anti-reflective coating on the second surface of the silicon layer and over the portion of the matching mark extending to the second surface of the silicon layer, forming the color filter on the anti-reflective coating, and forming the on-chip lens, wherein the matching mark is used for positioning the color filter and the on-chip lens.