Solid-state image sensing device and electronic device

An electronic device, comprising

• a solid-state image sensing device that comprises:
• a photoelectric conversion unit, wherein
• the photoelectric conversion unit comprises a first surface and a second surface,
• the first surface is a light receiving surface of the photoelectric conversion unit, and
• the second surface is opposite to the first surface;
• an insulating film on the first surface of the photoelectric conversion unit;
• a first light blocking film on a lower surface of the insulating film;
• a charge holding unit configured to hold charges transferred from the photoelectric conversion unit;
• a first transfer transistor configured to transfer the charges from the photoelectric conversion unit to the charge holding unit;
• a light blocking part comprising a first light blocking part and a second light blocking part, wherein
• the first light blocking part is arranged between the second surface of the photoelectric conversion unit opposite to the first surface of the photoelectric conversion unit and the charge holding unit,
• the first light blocking part covers the second surface, and
• the photoelectric conversion unit comprises a first opening,
• the second light blocking part is from a side of the first surface, and surrounds a side surface of the photoelectric conversion unit;
• a second light blocking film connecting the second light blocking part and the first light blocking film;
• and
• a cross section of the first light blocking part is tapered from a connection part with the second light blocking part towards the opening.

A solid-state image sensing device, comprising:

• a photoelectric conversion unit, wherein
• the photoelectric conversion unit comprises a first surface and a second surface,
• the first surface is a light receiving surface of the photoelectric conversion unit, and
• the second surface is opposite to the first surface;
• an insulating film on the first surface of the photoelectric conversion unit;
• a first light blocking film on a lower surface of the insulating film;
• a charge holding unit configured to hold charges transferred from the photoelectric conversion unit;
• a first transfer transistor configured to transfer the charges from the photoelectric conversion unit to the charge holding unit;
• a light blocking part comprising a first light blocking part with an opening and a second light blocking part, wherein
• the first light blocking part is parallel to the first surface of the photoelectric conversion unit,
• the first light blocking part is arranged between the photoelectric conversion unit and the charge holding unit,
• the first light blocking part covers the photoelectric conversion unit except for the opening,
• the second light blocking part is from a side of the first surface, and surrounds a side surface of the photoelectric conversion unit;
• a second light blocking film connecting the second light blocking part and the first light blocking film;
• and
• a cross section of the first light blocking part is tapered from a connection part with the second light blocking part towards the opening.