Invention Application
- Patent Title: FLIP CHIP INTERCONNECTION WITH REDUCED CURRENT DENSITY
- Patent Title (中): 具有降低电流密度的FLIP芯片互连
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Application No.: US14667490Application Date: 2015-03-24
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Publication No.: US20150270241A1Publication Date: 2015-09-24
- Inventor: ROBERT STRITTMATTER , Seshadri Kolluri , Robert Beach , Jianjun Cao , Alana Nakata
- Applicant: Efficient Power Conversion Corporation
- Main IPC: H01L23/00
- IPC: H01L23/00 ; B23K1/00

Abstract:
A method and system for electrically connect a semiconductor device with a flip-chip form factor to a printed circuit board. An exemplary embodiment of the method comprises: aligning solder contacts on the device with a first copper contact and a second copper contact of the external circuitry, and, applying a supply current only directly to a buried layer of the first copper and not directly to the layer which is nearest the device, such that no current is sourced to the device through the layer nearest the device.
Public/Granted literature
- US10090274B2 Flip chip interconnection with reduced current density Public/Granted day:2018-10-02
Information query
IPC分类: