Method for cleaning process control
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United States of America Patent
Stats
-
Mar 6, 1990
Grant Date -
N/A
app pub date -
Aug 26, 1988
filing date -
Aug 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for a cleaning process control is disclosed. The apparatus includes a printed wire circuit board that is made on a Pyrex glass or other transparent substrate. Components are attached to the printed wire circuit board and then the circuit card assembly which is formed is cleaned using a selected cleaning process. The circuit card assembly can then be inspected to determine the effectiveness of a particular cleaning process by flipping over the transparent circuit card, peering through the substrate to inspect for corrosion and solder balls. The circuit card assembly can then be cleaned more extensively and used again to check a different cleaning process.
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Cited Art Landscape
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