Image sensor with high conversion efficiency

An image sensor includes a photoelectric converter, a reflector, and a charge carrier guiding region. The reflector is disposed under the photoelectric converter, and the charge carrier guiding region is disposed between the photoelectric converter and the reflector. The reflector reflects incident...

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Bibliographic Details
Main Authors LIM MOO-SUP, CHOI SUNG-HO, LEE KANG-SUN, AHN JUNGAK, MOON KYOUNG-SIK
Format Patent
LanguageEnglish
Published 08.11.2011
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
SEMICONDUCTOR DEVICES
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Summary:An image sensor includes a photoelectric converter, a reflector, and a charge carrier guiding region. The reflector is disposed under the photoelectric converter, and the charge carrier guiding region is disposed between the photoelectric converter and the reflector. The reflector reflects incident light passed by the photoelectric converter back through the photoelectric converter for increasing photoelectric conversion efficiency and reduced crosstalk. The charge carrier guiding region dissipates undesired charge carriers for further increasing photoelectric conversion efficiency.
Bibliography:Application Number: US20090321665