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:
Oct. 06, 2009
Filed:
Nov. 21, 2006
Jaynal A. Molla, Gilbert, AZ (US);
Gregory W. Grynkewich, Gilbert, AZ (US);
Eric J. Salter, Scottsdale, AZ (US);
Jaynal A. Molla, Gilbert, AZ (US);
Gregory W. Grynkewich, Gilbert, AZ (US);
Eric J. Salter, Scottsdale, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A shield structure for shielding an electromagnetic-field-susceptible region of a semiconductor component (e.g., a magnetoresistive random access memory, or 'MRAM') includes a stress-relief layer (e.g., electroplated Ni) formed over the semiconductor device in a shield region substantially corresponding to the electromagnetic-field-susceptible region, and a magnetic shield layer (e.g., an electroplated PERMALLOY or MUMETAL layer) mechanically coupled to the stress-relief layer within the shield region, wherein the magnetic shield layer has a stress condition that is substantially opposite of that of the stress-relief layer.