Patent ID: 7915726
Filing Date: 2011-03-29
Classification: H01L

Abstract:
1. A substrate for attachment to a microelectronic device, the substrate comprising: a sheet of non-conductive material having a first side and an opposite second side; a first conductive trace on the first side of the sheet of non-conductive material, the first conductive trace having a first surface facing away from the non-conductive material and a second surface facing toward the non-conductive material; a first electrical contact area on the first surface of the first conductive trace; a second conductive trace on the second side of the sheet of non-conductive material, the second conductive trace having a third surface facing away from the non-conductive material and a fourth surface facing toward the non-conductive material; and a second electrical contact area on the fourth surface of the second conductive trace, wherein the second electrical contact area is unobstructed by the non-conductive material.