Solid-state image pickup device, method of manufacturing solid-state image pickup device, and electronic apparatus
View Patent ↗Disclosed herein is a solid-state image pickup device including a solid-state image pickup element operable to produce an electric charge according to the amount of light received, a lens disposed on the upper side of a pixel of the solid-state image pickup element, a protective film which covers the upper side of the lens and a surface of which is flattened, and a surface film which is formed at the surface of the protective film and which is higher in hydrophilicity than the inside of the protective film.
1. An electronic apparatus comprising:
a solid-state image pickup device; and
a signal processing unit operable to process a signal based on an electric charge produced by the solid-state image pickup device;
wherein the solid-state image pickup device includes:
a solid-state image pickup element operable to produce an electric charge according to the amount of light received;
a lens disposed on the upper side of a pixel of the solid-state image pickup element;
a protective film, wherein the protective film covers the upper side of and is in direct contact with the lens, and wherein a surface of the protective film opposite the lens is flattened; and
a surface film which is formed at the surface of the protective film opposite the lens and which is higher in hydrophilicity than the inside of the protective film, wherein the surface film is integral to the protective film.
2. The electronic apparatus of claim 1 , wherein the solid-state image pickup device further includes:
a package, wherein the solid-state image pickup element is mounted to the package.
3. The electronic apparatus of claim 2 , wherein the solid-state image pickup device further includes:
a transparent substrate.
4. The electronic apparatus of claim 3 , wherein the transparent substrate is attached to a frame part of the package.
5. The electronic apparatus of claim 4 , wherein a layer of inert gas is provided between the surface film and the transparent substrate.
6. The electronic apparatus of claim 4 , wherein an air layer is provided between the surface film and the transparent substrate.
7. The electronic apparatus of claim 4 , wherein in operation light passes through the transparent substrate, through the surface film, and through the protective film, in that order, to reach the solid-state image pickup element.
8. The electronic apparatus of claim 4 , wherein the transparent electrode is attached to the frame part of the package by a sealing resin.
9. The electronic apparatus of claim 4 , wherein the solid-state image pickup device has a hollow structure, and wherein the solid-state image pickup element is located inside of the hollow structure.