Invention Grant
- Patent Title: Magnetic shielding package structure for MRAM device and method for producing the same
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Application No.: US16298663Application Date: 2019-03-11
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Publication No.: US10686008B2Publication Date: 2020-06-16
- Inventor: Shan Gao , Boo Yang Jung
- Applicant: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- Current Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- Current Assignee Address: SG Singapore
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: H01L43/00
- IPC: H01L43/00 ; H01L27/22 ; H01L25/065 ; H05K1/02 ; H01L23/552 ; H01L23/00 ; H01L43/02 ; H01L43/12 ; H05K1/05 ; H05K1/09 ; H05K1/11 ; H05K3/32 ; H05K3/40

Abstract:
Methods of magnetically shielding an MRAM structure on all six sides in a thin wire or thin flip chip bonding package and the resulting devices are provided. Embodiments include forming a first metal layer embedded between an upper and a lower portion of a PCB substrate, the first metal layer having a pair of metal filled vias laterally separated; attaching a semiconductor die to the upper portion of the PCB substrate between the pair of metal filled vias; connecting the semiconductor die electrically to the PCB substrate through the pair of metal filled vias; removing a portion of the upper portion of the PCB substrate outside of the pair of metal filled vias down to the first metal layer; and forming a second metal layer over and on four opposing sides of the semiconductor die, the second metal layer landed on the first metal layer.
Public/Granted literature
- US20190206930A1 MAGNETIC SHIELDING PACKAGE STRUCTURE FOR MRAM DEVICE AND METHOD FOR PRODUCING THE SAME Public/Granted day:2019-07-04
Information query
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