Title:
積層アバランシェ増倍層および低電圧読取り電子回路を有するCMOSAPS
Document Type and Number:
Japanese Patent JP2005536930
Kind Code:
A
Abstract:
An image sensor includes a pixel having a protection circuit connected to a charge multiplying photoconversion layer. The protection circuit prevents the pixel circuit from breaking down when the voltage in the pixel circuit reaches the operating voltage applied to the charge multiplying photoconversion layer in response to the image sensor being exposed to a strong light. The protection circuit causes additional voltage entering the pixel circuit from the charge multiplying photoconversion layer over a predetermined threshold voltage level to be dissipated from the storage node and any downstream components.
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Inventors:
Isao Takayanagi
Junichi Nakamura
Junichi Nakamura
Application Number:
JP2004529806A
Publication Date:
December 02, 2005
Filing Date:
August 22, 2003
Export Citation:
Assignee:
MICRON TECHNOLOGY,INCORPORATED
International Classes:
G01J1/00; G01T1/24; H01J40/00; H01L21/00; H01L27/146; H01L29/04; H01L31/10; H01L31/20; H04N5/355; H01L27/02; (IPC1-7): H04N5/335; H01L27/146; H01L31/10
Attorney, Agent or Firm:
Kenji Yoshitake
Masami Tamama
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Masami Tamama
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki