SPRT for Weibull distributed integrated circuit failures

Rajarathnam Chandramouli; N. Vijaykrishnan; N. Ranganathan

doi:10.1117/12.324373

28 August 1998 SPRT for Weibull distributed integrated circuit failures

Rajarathnam Chandramouli, N. Vijaykrishnan, N. Ranganathan

Proceedings Volume 3510, Microelectronic Manufacturing Yield, Reliability, and Failure Analysis IV; (1998) https://doi.org/10.1117/12.324373
Event: Microelectronic Manufacturing, 1998, Santa Clara, CA, United States

Abstract

In this paper, we propose a sequential probability ratio test based on a two parameter Weibull distribution for IC failures. The shape parameter of the Weibull distribution characterizes the decreasing, constant and the increasing failure rate regions in the bath tub model for ICs. The algorithm detects the operating region of the IC based on the observed failure times. Unlike the fixed-length test, the proposed algorithm due to its sequential nature uses the minimum average number of devices for the test for fixed error tolerances in the detection procedure. We find that the proposed test is on an average 96 percent more efficient than the fixed-length test. Our algorithm is shown to be highly robust to the variations in the model parameters unlike other existing sequential tests. Further, extensive simulations are used to validate the analytic results of the sequential test.

Citation Download Citation

Rajarathnam Chandramouli, N. Vijaykrishnan, and N. Ranganathan "SPRT for Weibull distributed integrated circuit failures", Proc. SPIE 3510, Microelectronic Manufacturing Yield, Reliability, and Failure Analysis IV, (28 August 1998); https://doi.org/10.1117/12.324373

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