Patent ID: 9711407
Date: 2017-07-18
CPC Classifications: G06F,H01L

Claim:
1. A method of manufacturing a semiconductor wafer, the method comprising: providing a base wafer comprising a semiconductor substrate and a metal layer, said metal layer comprising a majority of aluminum of copper, and then transferring a first mono-crystalline layer on top of said metal layer, wherein said metal layer is in-between said, base wafer and said first mono-crystalline layer, and said transferring said first mono-crystalline layer comprises an ion-cut, and subsequently to said transferring, processing said first mono-crystalline layer to define first transistors, wherein said processing comprises at least two etch steps respectively defining an isolation for said first transistors and defining gates of said first transistors, and wherein the method further comprises connecting said first transistors, thus forming a first circuit that replaces a second circuit constructed with second transistors formed in said semiconductor substrate.