公开(公告)号：US20150295118A1

公开(公告)日：2015-10-15

申请号：US14249967

申请日：2014-04-10

Applicant: Texas Instruments Incorporated

Inventor： Ann Gabrys ,  Peter Hopper ,  William French

IPC: H01L31/109 ,  H01L31/18 ,  H01L31/02

CPC classification number: H01L31/09 ,  G02B6/42

Abstract: A photodetector detects the absence or presence of light by detecting a change in the inductance of a coil. The magnetic field generated when a current flows through the coil passes through an electron-hole generation region. Charged particles in the electron-hole generation region come under the influence of the magnetic field, and generate eddy currents whose magnitudes depend on whether light is absent or present. The eddy currents generate a magnetic field that opposes the magnetic field generated by current flowing through the coil.

Abstract translation: 光电检测器通过检测线圈的电感的变化来检测光的存在或不存在。 当电流流过线圈时产生的磁场通过电子空穴产生区域。 电子空穴产生区域中的带电粒子受到磁场的影响，并产生大小取决于光不存在或存在的涡流。 涡流产生与由流过线圈的电流产生的磁场相反的磁场。