EP 1114472 A2 20010711 - SENSOR FOR MEASURING A MAGNETIC FIELD
Title (en)
SENSOR FOR MEASURING A MAGNETIC FIELD
Title (de)
SENSOR ZUR MESSUNG EINES MAGNETFELDES
Title (fr)
DETECTEUR POUR MESURER UN CHAMP MAGNETIQUE
Publication
Application
Priority
- DE 9902605 W 19990819
- DE 19839671 A 19980901
Abstract (en)
[origin: DE19839671A1] The invention relates to a sensor for measuring a magnetic field. The inventive sensor has a high level of measuring sensitivity compared to a Hall probe, comprising several electrically semiconductive layers. Said layers are arranged in the form of a power diode connected in the reverse direction, consisting of an anode layer, a cathode layer and an intrinsically conductive layer enclosed between the two. The anode layer is subdivided by insulation sections into several anode layer areas, these areas being insulated from each other. The cathode layer has an injector area on the areas opposite the insulation sections which is oppositely doped. An electron beam is formed between the injector area and the anode by applying an injection voltage to said injector area. The electron beam is distributed across the areas of the earthed anode layer areas in the form of uniform partial currents. The electron beam is diverted by a magnetic field which forms in the intrinsically conductive layer, resulting in partial currents of different strengths on the earthed anode layer areas. The magnetic field can then be evaluated by measuring these differences in strength between the partial currents.
IPC 1-7
IPC 8 full level
G01R 33/00 (2006.01); G01R 33/06 (2006.01); H01L 29/82 (2006.01); H01L 43/06 (2006.01)
CPC (source: EP US)
G01R 33/06 (2013.01 - EP US); H10N 52/00 (2023.02 - EP US); Y02E 10/548 (2013.01 - EP)
Citation (search report)
See references of WO 0013205A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19839671 A1 20000309; DE 19839671 C2 20000803; CA 2341623 A1 20000309; EP 1114472 A2 20010711; JP 2002525592 A 20020813; US 6429498 B1 20020806; WO 0013205 A2 20000309; WO 0013205 A3 20000810
DOCDB simple family (application)
DE 19839671 A 19980901; CA 2341623 A 19990819; DE 9902605 W 19990819; EP 99953539 A 19990819; JP 2000571095 A 19990819; US 76387801 A 20010228