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Application filed by Ind Tech Res InstfiledCriticalInd Tech Res Inst
Priority to TW087106466ApriorityCriticalpatent/TW377546B/en
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Publication of TW377546BpublicationCriticalpatent/TW377546B/en
Application Of Or Painting With Fluid Materials
(AREA)
Non-Metallic Protective Coatings For Printed Circuits
(AREA)
Abstract
This invention provides a method of spray coating blind vias, especially applicable to multi-layer BGA and CSP printed circuit boards. Under this invention, target via area is first vacuumed to remove all air content, and then completely spray coated with filling materials thus increasing the reliability of electronic products manufactured with this process.
TW087106466A1998-04-271998-04-27Method of spray coating to fill blind vias
TW377546B
(en)