Patent ID: 9648750
Date: 2017-05-09
CPC Classifications: F21V,F21Y,H05K

Claim:
1. A flexible circuit board comprising: an electrically insulating top sheet; an electrically insulating bottom sheet having a bottom surface at least a portion of which lies in a first plane; a plurality of conductive traces positioned between the electrically insulating top and bottom sheets, a first conductive trace having a first contact pad with a bottom surface lying in a second plane, a second conductive trace having a second contact pad with a bottom surface lying in the second plane, the first and second contact pad being exposed through at least one opening in the electrically insulating top sheet and each of the first and second contact pads configured to be connected to an LED; and a third contact pad being exposed through openings in the electrically insulating top and bottom sheets, with a top surface of the third contact pad configured to be connected to the LED and a bottom surface of the third contact pad configured to be connected to a heat diffusion device, the bottom surface of the third contact pad lying in multiple planes with at least a portion of the bottom surface of the third contact pad lying in a third plane, the third plane being closer to the first plane than the second plane.