Title
Case study on low pin count testing of industry transceiver chip
Abstract
IC designs have been growing exponentially in size but the number of pins have not kept the same pace. This imbalance poses a difficult challenge when a design has very limited number of test pins but still requires a high quality testing. This problem is exacerbated when additional fault models like transition delay fault model are required for testing. This paper describes how a low pin count test controller was able to meet all these requirements to test a pin limited transceiver chip used in Qualcomm Technologies Inc.'s state-of-the-art chipset. The low pin count test controller supports at-speed testing with on-chip clock controller and exceeded the test coverage requirements for both stuck-at and at-speed testing by 1.22% and 2.16% respectively. During wafer testing, this test-pin savings enabled higher parallel testing of dies using multi-site testing which reduced the test-costs by about 1.6x.
Year
DOI
Venue
2018
10.1109/NATW.2018.8388868
2018 IEEE 27th North Atlantic Test Workshop (NATW)
Keywords
Field
DocType
LPCT,scan,testing,compression,transceiver chip
Code coverage,Control theory,Transceiver,Computer science,Radio frequency,Low Pin Count,Wafer testing,Chipset,Computer hardware,Fault model
Conference
ISSN
ISBN
Citations 
2573-7600
978-1-5386-6401-8
0
PageRank 
References 
Authors
0.34
5
3
Name
Order
Citations
PageRank
Imtiaz Ahmed100.34
Subhash Baraiya200.34
Rahul Singhal301.35