Patent ID: 7288433
Filing Date: 2007-10-30
Classification: H01L

Abstract:
1. A method of making a stacked electronic assembly comprising: providing a substrate in the form of a flexible sheet having oppositely-directed obverse and reverse surfaces and a wiring layer, the sheet including at least a first panel and a second panel and having a folding portion connecting the first panel and the second panel to each other, the second panel of the sheet including terminals exposed at the reverse surface for mounting the sheet to an external circuit, the wiring layer comprising traces extending along the sheet and being electrically connected to the terminals; assembling at least a first microelectronic element on the obverse surface of the first panel and electrically connecting the at least first microelectronic element to the traces, the first microelectronic element having a rear face and an opposite front face surface confronting the obverse surface of the first panel; and folding the sheet about the folding portion so as to stack the at least first microelectronic element over the second panel such that the rear face of the first microelectronic element closely confronts the obverse surface of the second panel and controls the planarity of the second panel.