The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 2004
Filed:
Feb. 14, 2000
Hubert Blanchard, Vevey, CH;
Liaisons Electroniques-Mecaniques LEM SA, Plan-les-Ouates, CH;
Abstract
A method of making an electrical current sensor having an electrical conducting portion ( ) of rectangular cross-section being surrounded, on three of its lateral faces, by a magnetic circuit portion ( ) which has end portions ( ″) having planar surfaces situated substantially in a plane of a fourth lateral face of the conductor portion ( ), a magnetic field detector ( ) being arranged opposite the fourth lateral face. The conductor portion ( ) is made by photo-lithography and etching in a layer of electrically conducting material applied on a first surface of a flat support member ( ″) or on intermediate layers ( ) deposited on the support member. The magnetic circuit portion ( ) is made by photo-lithography and etching in a layer of magnetically permeable material applied on the conductor portion ( ) on the first surface of the support member ( ″) or of an intermediate layer ( ). The magnetic field detector ( ) is fixed to the support member ( ″) or on intermediate layers ( ) deposited on a second surface of the support member.