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:
Jun. 18, 2013
Filed:
Dec. 21, 2011
Jun LI, Tianjin, CN;
Jianhong Wang, Tianjin, CN;
Xuesong Xu, Tianjin, CN;
Jinzhong Yao, Tianjin, CN;
Wanming Yu, Tianjin, CN;
Jun Li, Tianjin, CN;
Jianhong Wang, Tianjin, CN;
Xuesong Xu, Tianjin, CN;
Jinzhong Yao, Tianjin, CN;
Wanming Yu, Tianjin, CN;
Freescale Semiconductor Inc., Austin, TX (US);
Abstract
A method of assembling a magnetoresistive random access memory (MRAM) device includes providing a substrate having an opening. A tape is applied to a surface of the substrate and a first magnetic shield is placed onto the tape and within the substrate opening. An adhesive is applied between the first magnetic shield and the substrate to attach the first magnetic shield to the substrate. An MRAM die is attached to the first magnetic shield and bond pads of the MRAM die are connected to pads on the substrate with wires. A second magnetic shield is attached to a top surface of the MRAM die. An encapsulating material is dispensed onto the substrate, the MRAM die, the second magnetic shield and part of the first magnetic shield, cured, and then the tape is removed. Solder balls then may be attached to the substrate.