Inventors:
Angelo Yializis - Tucson AZ
John G. Keimel - New Brighton MN
Alvin S. Rhorer - Chandler AZ
Trey W. Huntoon - Tucson AZ
Assignee:
Sigma Labs, Inc. - Tucson AZ
International Classification:
H01G 4228
B21F 4100
Abstract:
A method of improving the breakdown strength of polymer multi-layer (PML) capacitors is provided. The method comprises removing metal, specifically, aluminum, from the cut edge. This is done by either etching back the metal electrode layers in either basic or acidic solution or by anodizing the metal to cover that portion of the metal at the edge with an oxide. Removing the metal from the cut edge increases the breakdown strength of the PML capacitors by a factor of two or more.