公开(公告)号：US20120138776A1

公开(公告)日：2012-06-07

申请号：US13313526

申请日：2011-12-07

Applicant: Xavier LEFOUL

Inventor： Xavier LEFOUL

IPC: H01L31/02

CPC classification number: G01J1/02 ,  G01J1/0228 ,  G01J1/44 ,  H01L27/1443

Abstract: The detection device comprises a photodetector provided with first and second terminals. A readout circuit has an input coupled to the first terminal of the photodetector. A bias circuit imposes a bias on the terminals of the photodetector. A test circuit delivers a test current to the photodetector. The test circuit comprises a first transistor through which the test current flows. The first transistor presents a first main electrode connected to the input of the readout circuit and configured so as to have a junction diode opposing flow of the charge carriers when the photodetector is short-circuited.

Abstract translation: 检测装置包括设置有第一和第二端子的光电检测器。 读出电路具有耦合到光电检测器的第一端子的输入。 偏置电路对光电检测器的端子施加偏压。 测试电路向光电检测器传送测试电流。 测试电路包括测试电流流经的第一晶体管。 第一晶体管呈现连接到读出电路的输入端的第一主电极，并配置成当光电检测器短路时具有与电荷载流子相反的结二极管。