Title:
SOLID-STATE IMAGE PICKUP DEVICE AND ITS DRIVE METHOD
Document Type and Number:
Japanese Patent JP3847521
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress the influence of variance of sub-threshold current and to reduce the modulation variance of output voltage.
SOLUTION: A solid-state image pickup device accumulates the light emission electric charge in a high density embedded layer formed under a channel and modulates the threshold voltage to detect an optical signal, and a signal output circuit 105 outputs the difference voltage between a 1st source potential that undergone the light modulation and a 2nd source potential that undergone no light modulation yet. The circuit 105 has a 1st line memory Lms which is connected to a source area via a 1st switch CK1 and a 2nd line memory Lmn which is connected to the source area via a 2nd switch CK2 and also has a 1st high voltage block switch CK7 between both switches CK1 and CK2 and the source area.
Inventors:
三井田 ▲高▼
Application Number:
JP2000111140A
Publication Date:
November 22, 2006
Filing Date:
April 12, 2000
Export Citation:
Assignee:
Innotech Corp.
International Classes:
H01L27/146; H01L31/10; H04N5/335; H04N5/365; H04N5/369; H04N5/374; (IPC1-7): H04N5/335; H01L27/146; H01L31/10
Domestic Patent References:
| JP2001230973A | ||||
| JP11195778A |
Attorney, Agent or Firm:
Keizo Okamoto