Curved image sensor
View Patent ↗A curved image sensor includes: a supporting substrate; an image sensor chip formed over the supporting substrate and including a curved light incidence surface; and a flare ghost preventive film formed over the curved light incidence surface and including a planar upper surface.
1. A curved image sensor, comprising:
a supporting substrate;
an image sensor chip formed over the supporting substrate and including a curved light incidence surface; and
a flare ghost preventive film formed over the curved light incidence surface and including a planar upper surface.
2. The curved image sensor of claim 1 , wherein a lower surface of the flare ghost preventive film has the same curvature as a curvature of an upper surface of the image sensor chip.
3. The curved image sensor of claim 1 , wherein the flare ghost preventive film fills the image sensor chip from a lowermost upper surface to an uppermost upper surface.
4. The curved image sensor of claim 1 , wherein the flare ghost preventive film includes a material whose refractive index is higher than a refractive index of atmosphere.
5. The curved image sensor of claim 1 , wherein the flare ghost preventive film includes a thermosetting material.
6. The curved image sensor of claim 1 , wherein the supporting substrate includes:
a curved portion where the image sensor chip is formed and a center is concavely curved; and
a supporting portion that contacts both sidewalls on outskirt of the curved portion.
7. The curved image sensor of claim 6 , wherein the image sensor chip is formed over a portion of the supporting portion and the curved portion.
8. The curved image sensor of claim 6 , wherein the flare ghost preventive film is formed over a portion of the curved portion and the image sensor chip.
9. The curved image sensor of claim 6 , wherein the flare ghost preventive film covers an upper portion of the supporting substrate where the image sensor chip is formed.
10. A curved image sensor, comprising:
an image sensor chip including a curved light incidence surface;
a flare ghost preventive film covering the curved light incidence surface and including a planar upper surface; and
an infrared cut-off filter formed to contact the planar upper surface of the flare ghost preventive film.
11. The curved image sensor of claim 10 ,
further comprising:
a supporting substrate formed in a lower portion of the image sensor chip and concavely curved,
wherein the supporting substrate includes:
a curved portion where the image sensor chip is formed and a center is concavely curved; and
a supporting portion contacting both side a Is on outskirt of the curved portion.
12. The curved image sensor of claim 11 , wherein the image sensor chip is formed over a portion of the supporting portion and the curved portion.
13. The curved image sensor of claim 11 , wherein the flare ghost preventive film is formed over a portion of the curved portion and the image sensor chip.
14. The curved image sensor of claim 11 , wherein the flare ghost preventive film covers an upper portion of the supporting substrate where the image sensor chip is formed.
15. The curved image sensor of claim 10 , wherein a refractive index of the infrared cut-off filter is higher than a refractive index of the flare ghost preventive film.
16. The curved image sensor of claim 10 , wherein a surface of a lower portion of the flare ghost preventive film adheres to the curved light incidence surface of the image sensor chip, and the curved light incidence surface of the image sensor chip is fixed by the flare ghost preventive film.
17. The curved image sensor of claim 10 , wherein the flare ghost preventive film includes a thermosetting material.
18. The curved image sensor of claim 10 , wherein the flare ghost preventive film fills the curved light incidence surface of the image sensor chip from a lowermost surface to an uppermost surface.
19. The curved image sensor of claim 10 , wherein a refractive index of the flare ghost preventive film is higher than a refractive index of atmosphere and lower than a refractive index of the infrared cut-off filter.