IMAGING ELEMENT AND ELECTRONIC DEVICE - SONY SEMICONDUCTOR SOLUTIONS CORP

Title:

IMAGING ELEMENT AND ELECTRONIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/173788

Kind Code:

A1

Abstract:

The present invention pertains to an imaging element and an electronic device, whereby a better pixel signal can be obtained. The present invention comprises: a photoelectric conversion unit that converts received light into an electric charge; a holding unit that holds electric charge transferred from the photoelectric conversion unit; and a light-blocking unit that blocks light, between the photoelectric conversion unit and the holding unit. The photoelectric conversion unit, the holding unit, and the light-blocking unit are formed inside a semiconductor substrate having a prescribed thickness. The light-blocking unit in a transfer area in which the electric charge is transferred from the photoelectric conversion unit to the holding unit is formed as a non-penetrating light-blocking unit that does not penetrate the semiconductor substrate. The light-blocking unit outside the transfer area is formed as a penetrating light-blocking unit that penetrates the semiconductor substrate. This technology can be applied to an imaging element.

Inventors:

KUMAGAI YOSHIMICHI (JP)
ABE TAKASHI (JP)
YOSHITA RYOTO (JP)

Application Number:

PCT/JP2018/009144

Publication Date:

September 27, 2018

Filing Date:

March 09, 2018

Export Citation:

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Assignee:

SONY SEMICONDUCTOR SOLUTIONS CORP (JP)

International Classes:

H01L27/146; H04N5/225; H04N5/374

Domestic Patent References:

WO2016152512A1

2016-09-29

Foreign References:

JP2013065688A	2013-04-11
JP2015023259A	2015-02-02
US20160056199A1	2016-02-25
JP2008060198A	2008-03-13
JP2008091771A	2008-04-17
JP2007227643A	2007-09-06
JP2014096490A	2014-05-22
JP2014229810A	2014-12-08
US20140327051A1	2014-11-06
JP2008103647A	2008-05-01

Other References: