Title:
LIGHT RECEIVING ELEMENT AND DISTANCE MEASURING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/045125
Kind Code:
A1
Abstract:
The present technology relates to a light receiving element and a distance measuring system, which are capable of improving pixel characteristics while allowing a variation in a breakdown voltage of a SPAD. The light receiving element comprises: a pixel array in which a plurality of pixels are arranged in a matrix; and a pixel drive unit that controls each pixel of the pixel array to an active pixel or an inactive pixel. A pixel comprises: a SPAD; a transistor connected in series to the SPAD; an inverter that outputs a detection signal indicating the incidence of a photon onto the SPAD; a first transistor that is turned on/off according to the control of the active pixel or the inactive pixel; and a second transistor connected in series to the first transistor. The present technology can be applied to, for example, a distance measuring system that detects a distance in a depth direction to a subject.
Inventors:
NISHINO TATSUKI (JP)
Application Number:
PCT/JP2019/032125
Publication Date:
March 05, 2020
Filing Date:
August 16, 2019
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01L31/10; G01J1/42; G01S7/486; H01L31/107
Foreign References:
| JP2017520134A | 2017-07-20 | |||
| US20160223397A1 | 2016-08-04 | |||
| US20140124652A1 | 2014-05-08 | |||
| CN103780852A | 2014-05-07 |
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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