NUMERICAL-SIMULATION OF AVALANCHE PHOTODIODES WITH GUARD RING

被引：9

作者：

HARARI, J ^{[1
]}

DECOSTER, D ^{[1
]}

VILCOT, JP ^{[1
]}

KRAMER, B ^{[1
]}

OGUEY, C ^{[1
]}

SALSAC, P ^{[1
]}

RIPOCHE, G ^{[1
]}

机构：

[1] ALCATEL,DIV CSO,CIT,F-91460 MARCOUSSIS,FRANCE

来源：

IEE PROCEEDINGS-J OPTOELECTRONICS | 1991年 / 138卷 / 03期

关键词：

COMMUNICATION SYSTEMS THEORY; MODELING; DIODES;

D O I：

10.1049/ip-j.1991.0037

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：

A numerical modelling of SAM-APDs which takes into account the effects of the guard ring on the electric field profile is presented. Starting from the knowledge of the technological parameters and from a one-dimensional model, for which Poisson's and continuity equations have been treated, we calculate the gain, the dark current, and the cut-off frequency of the device, so that it is possible to deduce the limits of those parameters to avoid parasitic breakdowns at the centre of the diode, and to get structures with high gain-bandwidth products. A two-dimensional model based on numerical solution of Poisson's equation to study the electric field profile under the guard ring is developed. Optimal conditions for implantation are deduced to avoid breakdown at the edge of the junction curvature. The results given by this modelling are compared with the experimental results concerning SAM-APDs with guard ring, which have been fabricated by C.I.T. ALCATEL.

引用

页码：211 / 217

页数：7

共 22 条

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