Invention Application
- Patent Title: THERMOSONICALLY BONDED CONNECTION FOR FLIP CHIP PACKAGES
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Application No.: US15085285Application Date: 2016-03-30
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Publication No.: US20170287730A1Publication Date: 2017-10-05
- Inventor: Mauro Mazzola , Battista Vitali , Matteo De Santa
- Applicant: STMicroelectronics S.r.l.
- Main IPC: H01L21/48
- IPC: H01L21/48 ; H01L21/56 ; H01L23/482 ; H01L23/492 ; H01L23/31

Abstract:
A method of making a package is disclosed. The method may include forming bond pads on a first surface of a substrate, forming leads in the substrate by etching recesses in a second surface of the substrate, the second surface being opposite the first surface, and plating at least a portion of a top surface of the leads with a layer of finish plating. The method may also include thermosonically bonding the leads to a die by thermosonically bonding the finish plating to the die and encapsulating the die and the leads in an encapsulant.
Public/Granted literature
- US10141197B2 Thermosonically bonded connection for flip chip packages Public/Granted day:2018-11-27
Information query
IPC分类: