Single or multi-layer printed circuit board with recessed or extended breakaway tabs and method of manufacture thereof
AssigneePPG Industries Ohio, Inc.
InventorsAlan E. Wang, Kevin C. Olson, Thomas H. Di Stefano
Life of this patent
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Abstract
A circuit board layer 2 in accordance with the present invention includes a conductive sheet 4 sandwiched between an insulating top layer 10 and an insulating bottom layer 14. The top and bottom layers 10 and 14 and the conductive sheet 4 define the circuit board layer 2 having an edge that includes an edge 20 of the conductive sheet 4. An insulating edge layer 18 covers substantially all of the edge 20 of the conductive sheet 4.
Claims3
A multilayer circuit board comprising a plurality of circuit boards laminated together, wherein each of the plurality of circuit boards comprises a conductive sheet sandwiched between an insulating top layer and an insulating bottom layer, the tap and bottom layers and the conductive sheet defining an edge of the circuit board that includes an edge of the conductive sheet having an insulating edge layer covering said edge of the conductive sheet;
- and the conductive sheet including a tab that extends outward beyond the general perimeter of the circuit board from between the insulating top layer and the insulating bottom layer;
- wherein, at least a part of an edge of the tab is exposed, and wherein,
- the tab of one of the circuit boards of the multilayer circuit board is offset from the tab of another of the circuit board of the multilayer circuit board.
Dependencies are inferred from the claim text.