Avalance photodetectors with an electrically isolated guard ring

Babatunde Odubanjo; Chen-Show Wang; Wen I. Wang

doi:10.1117/12.275634

6 June 1997 Avalance photodetectors with an electrically isolated guard ring

Babatunde Odubanjo, Chen-Show Wang, Wen I. Wang

Proceedings Volume 2994, Physics and Simulation of Optoelectronic Devices V; (1997) https://doi.org/10.1117/12.275634
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

A 2D finite difference method is employed to demonstrate the effectiveness of the use of guard rings in reducing surface electric field along the semiconductor/insulator interface of planar avalanche photodetectors (APDs). Results from our modeling indicate a 20 percent edge field reduction in doubly-diffused devices as compared to singly-diffused p⁺n^- junctions. The introduction of guard rings and double diffusion process is shown to provide an extra degree-of-freedom in the design of APDs, thus improved device characteristics against breakdown fields.

Citation Download Citation

Babatunde Odubanjo, Chen-Show Wang, and Wen I. Wang "Avalance photodetectors with an electrically isolated guard ring", Proc. SPIE 2994, Physics and Simulation of Optoelectronic Devices V, (6 June 1997); https://doi.org/10.1117/12.275634

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available