Process for tenting PTH's with PID dry film

A process of tenting plated through holes with a photoimageable dielectric is provided which includes a dielectric film comprising a photoimageable epoxy based resin layer and a peelable polyester layer. In accordance with the process of the present invention, the peelable polyester layer of the die...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARCELLO, HEINKE, KEESLER, ROSS WILLIAM, JONES, GERALD WALTER, WILSON, WILLIAM EARL, JAMES WARREN, MARKOVICH, VOYA RISTA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A process of tenting plated through holes with a photoimageable dielectric is provided which includes a dielectric film comprising a photoimageable epoxy based resin layer and a peelable polyester layer. In accordance with the process of the present invention, the peelable polyester layer of the dielectric film is removed prior to baking, developing, patterning or curing the structure.