Patent ID: 9129924
Filing Date: 2015-09-08
Classification: H01L

Abstract:
1. A method for forming a structure including an OLED display with semiconductor driving circuitry and other functions, said method comprising: providing a single crystalline semiconductor substrate having at least logic and memory devices formed on an exposed surface of the single crystalline semiconductor substrate; forming a surface protection layer on the exposed surface of the single crystalline semiconductor substrate having the at least logic and memory devices formed thereon; forming a stressor layer above the surface protection layer, wherein said stressor layer has a thickness and a tensile stress value that causes spalling mode fracture to occur within the single crystalline semiconductor substrate upon spalling; spalling the single crystalline semiconductor substrate to provide a spalled single crystalline semiconductor layer having the at least logic and memory devices located on a surface thereof, wherein said spalling is performed spontaneously without using any manual means to initiate crack formation and propagation; forming a substrate on a surface of the spalled single crystalline semiconductor layer opposite the surface having the at least logic and memory devices located thereon; and forming an organic light emitting diode (OLED) display on the spalled single crystalline semiconductor layer and adjacent the at least logic and memory devices.