Magnetic sensor with a chip attached to a lead assembly within a

Details Magnetic sensor with a chip attached to a lead assembly within a Magnetic sensor with a chip attached to a lead assembly within a

1996-11-06

1999-06-15

Patidar, Jay M.

Electricity: measuring and testing

Magnetic

Displacement

32420721, 32420725, G01B 714, G01B 730, G01R 3306, H01L 4308

Patent

active

059125560

ABSTRACT:
A geartooth sensor is provided with a carrier shaped to form a cavity in which semiconductor chips can be disposed. The carrier partially encapsulates a permanent magnet and a lead assembly. Unencapsulated portions of the lead assembly are exposed within the cavity to permit semiconductor components to be attached to a portion of the lead assembly. A cover is attached to the carrier to seal the cavity and protect the magnetically sensitive components located therein. The carrier, with its associated lead assembly and permanent magnet, can then be attached to a printed circuit board and a support structure to form a geartooth sensor. A protective enclosure can be disposed over the sensitive components of the geartooth sensor.

REFERENCES:
patent: 5444370 (1995-08-01), Wu
patent: 5469055 (1995-11-01), Mueller et al.
patent: 5477143 (1995-12-01), Wu
patent: 5500589 (1996-03-01), Sumcad
patent: 5545986 (1996-08-01), Ariyoshi et al.
patent: 5572120 (1996-11-01), Takaishi et al.

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