Optoelectronic switching and display device with porous silicon

Details Optoelectronic switching and display device with porous silicon Optoelectronic switching and display device with porous silicon

1992-05-20

1993-12-21

Mintel, William

Active solid-state devices (e.g., transistors, solid-state diode

Bulk effect device

Bulk effect switching in amorphous material

257 55, 257 59, 257103, 257 94, H01L 4500

Patent

active

052723550

ABSTRACT:
A solid state optoelectronic switching and display device and a method for its manufacture are disclosed. The device, formed in silicon, essentially is a surface-emitting visible light-emitting diode that allows rapid and efficient switching and information transfer, via optical means, between IC's, PC boards and displays in a computer. The method essentially includes electrochemically etching a silicon wafer to form a porous silicon region therein, depositing a transparent semiconductor layer on the porous silicon region, and forming a back contact on the wafer.

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