PROCESSES FOR MANUFACTURING PRINTED WIRING BOARDS POSSESSING ELECTRICALLY CONDUCTIVE CONSTRAINING CORES

Methods of manufacturing printed wiring boards including electrically conductive constraining cores that involve a single lamination cycle are disclosed. One example of the method of the invention includes drilling a clearance pattern in an electrically conductive constraining core, arranging the el...

Full description

Saved in:
Bibliographic Details
Main Author VASOYA KALU K
Format Patent
LanguageChinese
English
Published 11.06.2014
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
Online AccessGet full text

Cover

More Information
Summary:Methods of manufacturing printed wiring boards including electrically conductive constraining cores that involve a single lamination cycle are disclosed. One example of the method of the invention includes drilling a clearance pattern in an electrically conductive constraining core, arranging the electrically conductive constraining core in a stack up that includes B-stage (semi-cured) layers of dielectric material on either side of the constraining core and additional layers of material arranged to form the at least one functional layer, performing a lamination cycle on the stack up that causes the resin in the B-stage (semi-cured) layers of dielectric to reflow and fill the clearance pattern in the electrically conductive constraining core before curing and drilling plated through holes.
Bibliography:Application Number: CN20131750377