Title:
【発明の名称】固体撮像装置
Document Type and Number:
Japanese Patent JP2871831
Kind Code:
B2
Abstract:
PURPOSE:To prevent unnecessary light effectively and to achieve almost no decrease in sensitivity of optoelectronic transducing action by forming a light screening film for covering the surrounding part of the light receiving surface of an optoelectronic transducer element of a specified low-reflectivity material. CONSTITUTION:A light screening film 61 for covering the surrounding part of the light receiving surface of an optoelectronic transducer element is formed of a low-reflectivity material whose reflectivity of light is 50% or lower. As the material for such a light screening film 61, metal such as W, Mo, Ti, Pt, Cu and Ta, alloy such as TiW or nitride such as TiN and WN can be listed. In addition to the light screening purpose, the effect of the decrease in reflection of light at the surface of the film can be provided for the light screening film 61. Therefore, the film 61 can be provided on the main sensor part of a solid- state image pickup device. In this way, the intrusion of external incident light into a light receiving part in the lateral direction can be remarkably decreased, and the minute, highly accurate pattern can be formed.
Inventors:
HOKARI YASUAKI
Application Number:
JP25560090A
Publication Date:
March 17, 1999
Filing Date:
September 26, 1990
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H01L27/14; H04N5/335; H04N5/359; H04N5/369; H04N5/372; (IPC1-7): H01L27/14
Domestic Patent References:
| JP6175562A | ||||
| JP6114749A | ||||
| JP57148366A | ||||
| JP60128677A | ||||
| JP6184860A | ||||
| JP63237465A | ||||
| JP5519885A |
Attorney, Agent or Firm:
Naoki Kyomoto