Abstract:
본 기술은, 특성을 향상시킬 수 있도록 하는 수광 소자 및 거리 측정 모듈에 관한 것이다. 수광 소자는, 온 칩 렌즈와, 배선층과, 온 칩 렌즈와 배선층 사이에 배치되는 반도체층을 구비하고, 반도체층은, 제1 전압이 인가되는 제1 전압 인가부와, 제1 전압과는 다른 제2 전압이 인가되는 제2 전압 인가부와, 제1 전압 인가부의 주위에 배치되는 제1 전하 검출부와, 제2 전압 인가부의 주위에 배치되는 제2 전하 검출부를 구비하고, 제1 전압 인가부와 제2 전압 인가부의 각각은, 반도체층 내에서 절연막으로 덮여서 구성된다. 본 기술은, 예를 들면, ToF 방식으로 거리 정보를 생성하는 수광 소자 등에 적용할 수 있다.
Abstract:
A semiconductor device includes a photodetector having a junction at which a first conductive type first semiconductor portion and a second conductive type second semiconductor portion are joined to each other. In this photodetector, division regions are formed in part of the first semiconductor portion in such a manner as to cross the first semiconductor portion and partially enter the second semiconductor portion, so that the junction is divided into a plurality of parts by the division regions, to form a plurality of photodetector regions having the divided junction parts. When a reverse bias voltage, which is equal to or less than a specific reverse bias voltage applied to the divided junction parts upon operation of the photodetector, is applied to the divided junction parts, depletion layers originated from two divided junction parts, disposed on both the sides of each of the division regions, of the plurality of divided junction parts extend, in the second semiconductor portion, under the division region to be brought into contact with each other. With this configuration, the frequency characteristic and the light receiving sensitivity of the photodetector are improved.
Abstract:
PROBLEM TO BE SOLVED: To provide a technology improving an optical-electromagnetic wave converting efficiency and an electromagnetic wave detecting sensitivity, in a structure for electromagnetic generation/detection which is used for generating or detecting electromagnetic waves. SOLUTION: The structure for the electromagnetic wave generation/detection, which is used for generating or detecting the electromagnetic wave, is manufactured by a method comprising: a process of forming a layer 2 containing a compound semiconductor on a substrate 1 at a substrate temperature of about 300°C or less; a first heating process of heating the substrate 1 having the layer 2 in an atmosphere containing arsenic; and a second heating process of heating the substrate 1 having the layer 2 in a gas atmosphere not reacting chemically with the compound semiconductor at the substrate temperature of about 600°C or higher. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor photodetection element and a photodetection device capable of miniaturizing and thinning, while maintaining high-speed responsiveness. SOLUTION: The semiconductor photodetection element 10 comprises the first semiconductor substrate 1 of low resistivity of a first conductivity type having a surface (111), and the second semiconductor substrate 2 of high resistivity of a first conductivity type having a surface (100) adhered on the first semiconductor substrate 1. In the surface side of the second semiconductor substrate 2, the semiconductor region 3 of a second conductivity type is formed, the domain around the semiconductor region 3 is etched until the first semiconductor substrate 1 is exposed. Moreover, the first electrode 1e and the second electrode 2e are connected electrically, respectively, to the exposure surface of the first semiconductor substrate 1 and the semiconductor region 3. COPYRIGHT: (C)2006,JPO&NCIPI