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1
EP3789730A1
LIGHT-RECEIVING ELEMENT AND DISTANCE MEASUREMENT MODULE
Publication/Patent Number: EP3789730A1 Publication Date: 2021-03-10 Application Number: 19832264.6 Filing Date: 2019-07-04 Inventor: Isogai, Yuji   Imoto, Tsutomu   Maruyama, Takuya   Murase, Takuro   Watanabe, Ryota   Wakano, Toshifumi   Assignee: Sony Semiconductor Solutions Corporation   IPC: G01C3/06 Abstract: The present technology relates to a light reception device and a distance measurement module that make it possible to improve a characteristic. The light reception device includes an on-chip lens, a wiring layer, and a semiconductor layer arranged between the on-chip lens and the wiring layer. The semiconductor layer includes a first tap having a first voltage application portion to which a first voltage is applied and a first charge detection portion arranged around the first voltage application portion, and a second tap having a second voltage application portion to which a second voltage different from the first voltage is applied and a second charge detection portion arranged around the second voltage application portion The on-chip lens is configured such that the position thereof differs depending upon an in-plane position of a pixel array section, so that an optical path length or a DC contrast of a chief ray from an object is uniform at in-plane pixels of the pixel array section. The present technology can be applied, for example, to a light reception device that generates distance information, for example, by a ToF method, and so forth.
2
US2021135022A1
LIGHT RECEPTION DEVICE AND DISTANCE MEASUREMENT MODULE
Publication/Patent Number: US2021135022A1 Publication Date: 2021-05-06 Application Number: 16/633,713 Filing Date: 2019-07-04 Inventor: Murase, Takuro   Watanabe, Ryota   Wakano, Toshifumi   Maruyama, Takuya   Otake, Yusuke   Imoto, Tsutomu   Isogai, Yuji   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H01L31/02 Abstract: The present technology relates to a light reception device and a distance measurement module whose characteristic can be improved. The light reception device includes an on-chip lens, a wiring layer, and a semiconductor layer arranged between the on-chip lens and the wiring layer. The semiconductor layer includes a first tap having a first voltage application portion and a first charge detection portion arranged around the first voltage application portion, and a second tap having a second voltage application portion and a second charge detection portion arranged around the second voltage application portion. Furthermore, the light reception device is configured such that a phase difference is detected using signals detected by the first tap and the second tap. The present technology can be applied, for example, to a light reception device that generates distance information, for example, by a ToF method, and so forth.
3
WO2020026626A1
MEASURING DEVICE
Publication/Patent Number: WO2020026626A1 Publication Date: 2020-02-06 Application Number: 2019024232 Filing Date: 2019-06-19 Inventor: Murase, Takuro   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: G01B11/24 Abstract: This measuring device is provided with: a pixel including a light receiving element capable of generating a received light charge by performing photoelectric conversion on the basis of light, a plurality of accumulating portions including a first accumulating portion and a second accumulating portion capable of accumulating received light charges, and a charge supplying portion capable of selectively supplying the received light charges generated by the light receiving element to the plurality of accumulating portions; and a processing portion capable of generating a first detected value on the basis of the amount of charge of the received light charges accumulated by the first accumulating portion, capable of generating a second detected value on the basis of the amount of charge of the received light charges accumulated by the second accumulating portion, and capable of generating a first pixel value on the basis of a difference between the first detected value and the second detected value.
4
EP3640989A1
LIGHT-RECEIVING ELEMENT AND RANGE FINDING MODULE
Publication/Patent Number: EP3640989A1 Publication Date: 2020-04-22 Application Number: 19832538.3 Filing Date: 2019-07-04 Inventor: Maruyama, Takuya   Isogai, Yuji   Imoto, Tsutomu   Murase, Takuro   Watanabe, Ryota   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L27/146 Abstract: The present technology relates to a light-receiving element and a distance measurement module which are capable of improving characteristics. A light-receiving element includes: a first voltage application unit to which a voltage is applied; a first charge detection unit that is disposed at a periphery of the first voltage application unit; a second voltage application unit to which a voltage is applied; a second charge detection unit that is disposed at a periphery of the second voltage application unit; a third voltage application unit to which a first voltage is applied; and a voltage control unit that applies a second voltage to one of the first voltage application unit and the second voltage application unit and causes the other to be in a floating state, the second voltage being different from the first voltage. The present technology is applicable to a light-receiving element.
5
WO2020017340A1
LIGHT RECEIVING ELEMENT AND RANGE-FINDING MODULE
Publication/Patent Number: WO2020017340A1 Publication Date: 2020-01-23 Application Number: 2019026575 Filing Date: 2019-07-04 Inventor: Maruyama, Takuya   Murase, Takuro   Imoto, Tsutomu   Watanabe, Ryota   Isogai, Yuji   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/369 Abstract: The present invention pertains to a light receiving element and a range-finding module with which it is possible to improve characteristic features thereof. The light receiving element is provided with: an on-chip lens; a wiring layer; a first substrate interposed between the on-chip lens and the wiring layer; and a second substrate that is bonded to the first substrate with the wiring layer therebetween. The first substrate has: a first voltage application unit to which a first voltage is applied; a second voltage application unit to which a second voltage different from the first voltage is applied; a first electric charge detection unit disposed around the first voltage application unit; and a second electric charge detection unit disposed around the second voltage application unit. The second substrate has a plurality of pixel transistors for performing an operation for reading out electric charges detected by the first and second electric charge detection units. The present invention is applicable to, for example, light receiving elements or the like that generate distance information by a ToF method.
6
WO2020017339A1
LIGHT RECEIVING ELEMENT AND RANGE FINDING MODULE
Publication/Patent Number: WO2020017339A1 Publication Date: 2020-01-23 Application Number: 2019026574 Filing Date: 2019-07-04 Inventor: Maruyama, Takuya   Murase, Takuro   Imoto, Tsutomu   Watanabe, Ryota   Isogai, Yuji   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/369 Abstract: The present technology relates to a light receiving element and a range finding module, which are able to have improved characteristics. A light receiving element according to the present technology is provided with: a first voltage application part to which a voltage is applied; a first charge detection part which is arranged around the first voltage application part; a second voltage application part to which a voltage is applied; a second charge detection part which is arranged around the second voltage application part; a third voltage application part to which a first voltage is applied; and a voltage control part which applies a second voltage that is different from the first voltage to one of the first voltage application part and the second voltage application part, while bringing the other one into a floating state. The present technology is applicable to a light receiving element.
7
KR20200010045A
LIGHT-RECEIVING ELEMENT AND DISTANCE MEASUREMENT MODULE
Publication/Patent Number: KR20200010045A Publication Date: 2020-01-30 Application Number: 20190079791 Filing Date: 2019-07-03 Inventor: Yamazaki, Takeshi   Imoto, Tsutomu   Murase, Takuro   Isogai, Yuji   Watanabe, Ryota   Maruyama, Takuya   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: G01B11/02 Abstract: 수광 소자는, 온 칩 렌즈와, 배선층과, 온 칩 렌즈와 배선층 사이에 배치되는 반도체층을 포함한다. 반도체층은, 제1의 전압이 인가되는 제1의 전압 인가부와, 제1의 전압과는 다른 제2의 전압이 인가되는 제2의 전압 인가부와, 제1의 전압 인가부의 주위에 배치되는 제1의 전하 검출부와, 제2의 전압 인가부의 주위에 배치되는 제2의 전하 검출부와, 유효 화소 영역의 외측에 마련된 전하 배출 영역을 포함한다. 본 기술은, 예를 들면, ToF 방식으로 거리 정보를 생성하는 수광 소자 등에 적용할 수 있다.
8
EP3644366A1
LIGHT RECEIVING ELEMENT AND RANGE FINDING MODULE
Publication/Patent Number: EP3644366A1 Publication Date: 2020-04-29 Application Number: 19836782.3 Filing Date: 2019-07-04 Inventor: Murase, Takuro   Watanabe, Ryota   Wakano, Toshifumi   Maruyama, Takuya   Otake, Yusuke   Imoto, Tsutomu   Isogai, Yuji   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L27/146 Abstract: The present technology relates to a light reception device and a distance measurement module whose characteristic can be improved. The light reception device includes an on-chip lens, a wiring layer, and a semiconductor layer arranged between the on-chip lens and the wiring layer. The semiconductor layer includes a first tap having a first voltage application portion and a first charge detection portion arranged around the first voltage application portion, and a second tap having a second voltage application portion and a second charge detection portion arranged around the second voltage application portion. Furthermore, the light reception device is configured such that a phase difference is detected using signals detected by the first tap and the second tap. The present technology can be applied, for example, to a light reception device that generates distance information, for example, by a ToF method, and so forth.
9
US2020028017A1
LIGHT-RECEIVING ELEMENT AND DISTANCE MEASUREMENT MODULE
Publication/Patent Number: US2020028017A1 Publication Date: 2020-01-23 Application Number: 16/504,875 Filing Date: 2019-07-08 Inventor: Imoto, Tsutomu   Isogai, Yuji   Maruyama, Takuya   Murase, Takuro   Watanabe, Ryota   Yamazaki, Takeshi   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L31/101 Abstract: A light-receiving element includes an on-chip lens; an interconnection layer; and a semiconductor layer that is disposed between the on-chip lens and the interconnection layer. The semiconductor layer includes a first voltage application unit to which a first voltage is applied, a second voltage application unit to which a second voltage different from the first voltage is applied, a first charge detection unit that is disposed at the periphery of the first voltage application unit, a second charge detection unit that is disposed at the periphery of the second voltage application unit, and a charge discharge region that is provided on an outer side of an effective pixel region. For example, the present technology is applicable to a light-receiving element that generates distance information in a ToF method, or the like.