Patent ID: 9536923
Date: 2017-01-03
CPC Classifications: H01L,H04N

Claim:
1. A solid-state image pickup device, comprising: an image pickup pixel having a first photoelectric conversion portion and a first transistor for reading out a signal based on a charge generated in the photoelectric conversion portion; a focus detection pixel having a second photoelectric conversion portion, a second transistor for reading out a signal based on a charge generated in the second photoelectric conversion portion, and a light shielding portion; a first film containing titanium nitride and being provided on an under face of the light shielding portion; a second film containing titanium nitride and being provided on an upper face of the light shielding portion and below a first insulating film, the upper face being positioned farther apart from a light receiving face of the second photoelectric conversion portion than from the under face; a third film containing titanium is provided between the light shielding portion and the second film; and a wiring line for the first transistor and the second transistor provided above the first transistor and the second transistor, wherein a thickness of the second film is larger than that of the first film in height direction, wherein the thickness of the first film and the second film are larger than that of the third film in height direction, wherein the wiring line and a structure having the light shielding portion, the first film, the second film, and the third film are provided in the same layer.