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:
Feb. 01, 2005
Filed:
Jul. 19, 2001
William F. Witcraft, Minneapolis, MN (US);
Lonny Berg, Elk River, MN (US);
Mae W. NG, Edina, MN (US);
Tom Yeh, Arden Hills, MN (US);
William F. Witcraft, Minneapolis, MN (US);
Lonny Berg, Elk River, MN (US);
Mae W. Ng, Edina, MN (US);
Tom Yeh, Arden Hills, MN (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A method of making a magnetorestrictive sensor involves the deposition of a magnetorestrictive strip over a substrate, the deposition of an insulating layer over the magnetorestrictive strip, the etching of barber pole windows through the insulating layer, the deposition of a conductive material over the insulating layer and into the barber windows, and the etching away of the conductive material between the barber pole windows so as to form barber poles. In this manner, the formation of the barber poles is controlled by the windows formed in the insulating layer.