This method is used on printed wiring boards to replace damaged or missing conductors on the printed wiring board surface。

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IPC7721 Change 1 Pages March 2000 THE INSTITUTE FOR INTERCONNECTING AND PACKAGING ELECTRONIC CIRCUITS Repair and Modification of Printed Boards and Electronic Assemblies Developed by the Printed Board Repair Task Group 734a of the Institute for Interconnecting and Packaging Electronic Circuits Users of this standard are encouraged to participate in the development of future revisions Contact IPC 2215 Sanders Road Northbrook Illinois 600626135 Tel 847 5099700 Fax 847 5099798 March 2000 IPC7721 Ac......