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Corelis JTAG Tools Help Maintain Test Engineer's Sanity While
Increasing Throughput
Reduced Cost at Imperial Technology Inc.
“A large,
double sided, very complex PC board assembly was being tested in
a “hot mock-up” and was consuming seven Test Engineer hours to
test, troubleshoot, and repair. This required that a high level
Test Engineer be dedicated to this testing function. The
repetitious testing strained his sanity and added considerable
cost to the process,” said Bruce C. Johnson.
Bruce is the
Quality Assurance Manager at
Imperial Technology and is responsible for Inspection, Test, and Test
Engineering. Imperial Technology, located in El Segundo,
California, designs and manufactures state of the art high
speed, solid state disk drive memories.
In minimal
time, Corelis provided a turn-key solution that included the
ScanExpress boundary-scan test system and a custom test procedure.
“Corelis
Engineers quickly became knowledgeable with our product and
efficiently generated Test Vectors with excellent test coverage.
Source inspection, which included inserting many faults, was
performed at the Corelis facility and successfully accomplished
in a speedy and cooperative manner. Test coverage was as quoted
and fault locations were well displayed. On-site training was
also provided to our Test Engineer.”
“Our board was
not particularly designed with boundary scan in mind, however
test results were most gratifying” said Mr. Johnson. “All
accessible failing nodes were easily identified leading to
faulty parts or the failure cause. The majority of boards which
passed the boundary test also passed functional testing in the
hot mock-up. We are now using technicians to perform the testing
and fault location using the Corelis solution, freeing the Test
Engineer to perform more demanding tasks.”
“We were so
pleased with the results,” added Mr. Johnson, “that we proceeded
with Corelis to perform test vectors generation for two
additional boards which incorporated BGA parts and a multitude
of FPGA parts. Source acceptance testing located faults which
the designing engineer had, unsuccessfully, devoted weeks to
locate. Boards which tested GOOD using boundary scan performed
100% in subsequent system functional tests. The Corelis Boundary
Scan solution has saved a substantial investment in Test
Engineer and test fixturing resources. These valuable resources
may now be utilized in more productive and satisfying
applications.”
Mr. Johnson
was so pleased with the effectiveness of boundary-scan and
Corelis boundary-scan test tools, that he is incorporating
boundary-scan testability into all new product designs at
Imperial Technology.
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Testimonials
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