Patent ID: 11881475
Assignee: X DISPLAY COMPANY TECHNOLOGY LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method of making a pixel module, comprising:
providing a semiconductor substrate having a native side and an opposing device side;
forming a controller in or on the native side of the semiconductor substrate;
forming an electrode via comprising an electrode extending into the semiconductor substrate and an etch via forming a wall around at least a portion of the controller;
electrically connecting the electrode to the controller with a controller contact pad;
disposing a patterned sacrificial layer comprising sacrificial portions over the controller, the electrode, and the etch via;
providing a carrier wafer and bonding the carrier wafer to the patterned sacrificial layer with a bonding layer; and
disposing an LED on the device side of the semiconductor substrate and electrically connecting the LED to the electrode, thereby forming the pixel module that comprises the LED, the semiconductor substrate, the controller, and the electrode via comprising the electrode.