Systems and methods for drilling holes in printed circuit boards
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United States of America Patent
Stats
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Dec 4, 2012
Grant Date -
Aug 27, 2009
app pub date -
Sep 26, 2008
filing date -
Sep 28, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An entry sheet comprising polymer material for drilling printed circuit boards is provided. The entry sheet is suitable for use with a broad range of diameters, including commonly available drill diameters. The entry sheet comprises an adhesive epoxy configured to, among others, resist drill deflection, resist mechanical damage, and reduce to dust such that the entry sheet may increase drilling accuracy, protect printed circuit board from damage, minimize entry burrs, and may addresses other issues such as fliers, bird nesting, and the like.
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