On-Chip AC self-test controller
Abstract
A system for performing AC self-test on an integrated circuit that includes a system clock for normal operation is provided. The system includes the system clock, self-test circuitry, a first and second test register to capture and launch test data in response to a sequence of data pulses, and a logic circuit to be tested. The self-test circuitry includes an AC self-test controller and a clock splitter. The clock splitter generates the sequence of data pulses including a long data capture pulse followed by an at speed data launch pulse and an at speed data capture pulse followed by a long data launch pulse. The at speed data launch pulse and the at speed data capture pulse are generated for a common cycle of the system clock.
- Inventors:
-
- Rhinebeck, NY
- Poughkeepsie, NY
- Fishkill, NY
- Issue Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 988588
- Patent Number(s):
- 7596734
- Application Number:
- 12/185,172
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Flanagan, John D, Herring, Jay R, and Lo, Tin-Chee. On-Chip AC self-test controller. United States: N. p., 2009.
Web.
Flanagan, John D, Herring, Jay R, & Lo, Tin-Chee. On-Chip AC self-test controller. United States.
Flanagan, John D, Herring, Jay R, and Lo, Tin-Chee. Tue .
"On-Chip AC self-test controller". United States. https://www.osti.gov/servlets/purl/988588.
@article{osti_988588,
title = {On-Chip AC self-test controller},
author = {Flanagan, John D and Herring, Jay R and Lo, Tin-Chee},
abstractNote = {A system for performing AC self-test on an integrated circuit that includes a system clock for normal operation is provided. The system includes the system clock, self-test circuitry, a first and second test register to capture and launch test data in response to a sequence of data pulses, and a logic circuit to be tested. The self-test circuitry includes an AC self-test controller and a clock splitter. The clock splitter generates the sequence of data pulses including a long data capture pulse followed by an at speed data launch pulse and an at speed data capture pulse followed by a long data launch pulse. The at speed data launch pulse and the at speed data capture pulse are generated for a common cycle of the system clock.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}
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