Method of manufacturing double-sided printed circuit board

The present invention provides a method of manufacturing a double-sided printed circuit board. An insulation substrate is first formed by creating a plurality of through holes on a Copper Clad Laminate (CCL) whose copper foil surface has been removed. Next, an electro-less copper layer is plated on...

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Bibliographische Detailangaben
Hauptverfasser:	HO SHING-FUN, HSU HUNG-EN, WANG BINWEI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CONDUCTORS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INSULATORS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	The present invention provides a method of manufacturing a double-sided printed circuit board. An insulation substrate is first formed by creating a plurality of through holes on a Copper Clad Laminate (CCL) whose copper foil surface has been removed. Next, an electro-less copper layer is plated on the substrate for forming a plurality of plated through holes. After a wire pattern is formed on the substrate, a solder preventive layer is formed on top of the wire pattern. Next, a plurality of openings is created in between the solder preventive layer for exposing the contact pads. Finally, a protective layer is plated on top of the contact pads.