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including U-shaped continuous flow manufacturing lines, no-clean,
paste-in-hole, and wave soldering of bottom-side SOIC's. Compaq
Asia was also responsible for improving designs and manufacturing
processes for all Compaq Asia PCA's and CPU's, including designs
for custom power supplies, and Compaq Asia built PCA's with
multiple fine pitch components that required critical process
controls to reduce rework and maintain quality.
As with Compaq U.S., the top priority of Compaq Asia was to
produce high-quality products. Compaq U.S. developed in-house
workmanship standards that specified acceptable and unacceptable
quality of PCA's. All manufacturing sites, including Compaq Asia
and unrelated subcontractors, were required to comply with these
standards. To ensure quality, Compaq Asia conducted extensive
in-house training and used statistical process controls to
monitor the processes so Compaq Asia engineers could take quick
corrective actions if necessary. As a result, Compaq Asia
achieved ICT first-pass yields of 98 percent in 1991 and
97.2 percent in 1992 and functional test first-pass yields of
98.5 percent in 1991 and 98 percent in 1992.
Compaq Asia was more advanced than other Singaporean PCA
producers that primarily produced PCA's for disk drives and other
small electronic devices, which had few technological,
manufacturing, and process control requirements. Accordingly,
Compaq Asia did not compete with those companies because those
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Last modified: May 25, 2011