Global Patent Index - EP 0954881 A1

EP 0954881 A1 19991110 - OPTOELECTRONIC VOLTAGE-PHASE SWITCH USING PHOTODIODES

Title (en)

OPTOELECTRONIC VOLTAGE-PHASE SWITCH USING PHOTODIODES

Title (de)

OPTOELEKTRONISCHER SPANNUNG PHASE SCHALTER MIT PHOTODIODEN

Title (fr)

COMMUTATEUR OPTOELECTRONIQUE DE TENSION-PHASE COMPORTANT DES PHOTODIODES

Publication

EP 0954881 A1 19991110 (EN)

Application

EP 97950833 A 19971126

Priority

US 9722229 W 19971126

Abstract (en)

[origin: WO9927589A1] A wavelength-portion controllable optoelectronic switch ("Opsistor") capable of rapid switch frequencies fabricated as a monolithic integrated circuit is disclosed. The Opsistor is comprised of two inverse parallel photodiodes in close proximity, preferably on a monolithic silicon substrate, such that the anode of one photodiode is electrically connected via a first conductor to the cathode of the second photodiode, and the cathode of the first photodiode is electrically connected via a second conductor to the anode of the second photodiode. The voltage-phase of the Opsistor is determined by the relative illumination of the Opsistor's two photodiodes and is rapidly switchable. Applications suitable for the Opsistor include high speed optocouplers, linear optical position sensors, edge and target detection sensors, image recognition sensors, the basic subunits of optically based state computers, and high resolution optical encoders.

IPC 1-7

H01L 31/08; H01L 31/173; H03K 17/78

IPC 8 full level

G01D 21/00 (2006.01); H01L 31/08 (2006.01); H01L 31/10 (2006.01); H03K 17/78 (2006.01)

CPC (source: EP US)

H01L 31/08 (2013.01 - EP US)

Citation (search report)

See references of WO 9927589A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9927589 A1 19990603; CA 2274666 A1 19990603; EP 0954881 A1 19991110; JP 2002511947 A 20020416

DOCDB simple family (application)

US 9722229 W 19971126; CA 2274666 A 19971126; EP 97950833 A 19971126; JP 52168599 A 19971126