A PLANAR INP/INGAAS AVALANCHE PHOTODIODE WITH FLOATING GUARD RING AND DOUBLE DIFFUSED JUNCTION

被引:107
作者
LIU, Y [1 ]
FORREST, SR [1 ]
HLADKY, J [1 ]
LANGE, MJ [1 ]
ACKLEY, DE [1 ]
机构
[1] UNIV SO CALIF,CTR PHOTON TECHNOL,DEPT MAT SCI,LOS ANGELES,CA 90089
关键词
D O I
10.1109/50.120573
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We discuss the fabrication, performance, and design of a novel, planar In0.53Ga0.47As/InP separate absorption and multiplication region avalanche photodiode (SAM-APD) with floating guard rings and a double Zn diffused junction. The APD, grown by both vapor phase epitaxy and metalorganic vapor phase epitaxy, is observed to have a uniform gain of 85, a minimum primary dark current density of 5 x 10(-6) A/cm2 at 90% of breakdown, and a capacitance of 0.4 pF for a front-side illuminated device. Both experimental and analytical results show that the double-diffused floating guard ring structure prevents edge breakdown, and also greatly reduces the electric field along the semiconductor/insulator surface. The operation mechanisms and the optimum design of the planar APD based on a two-dimensional device model are discussed.
引用
收藏
页码:182 / 193
页数:12
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