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:
Jan. 10, 2017
Filed:
Oct. 22, 2013
Applicant:
Voltafield Technology Corp., Zhubei, Hsinchu County, TW;
Inventors:
Assignee:
Voltafield Technology Corp., Zhubei, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 43/12 (2006.01); G01R 33/09 (2006.01); H01L 43/08 (2006.01);
U.S. Cl.
CPC ...
H01L 43/12 (2013.01); G01R 33/093 (2013.01); H01L 43/08 (2013.01);
Abstract
A magnetoresistive structure includes a substrate and a patterned stack structure. The substrate has a back surface and a front surface having a step portion. The patterned stack structure is on the step portion of the front surface and comprises a magnetoresistive layer, a conductive cap layer and a dielectric hard mask layer. The step portion has a top surface parallel to the back surface, a bottom surface parallel to the back surface and a step height joining the top surface and bottom surface and being not parallel to the back surface.