Integrated half-bridge switch using 70-μm-thin devices and hollow interconnects

Solomon, Adane Kassa, Li, Jianfeng, Castellazzi, Alberto and Johnson, Christopher Mark (2015) Integrated half-bridge switch using 70-μm-thin devices and hollow interconnects. IEEE Transactions on Industry Applications, 51 (1). pp. 556-566. ISSN 1939-9367

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An application-oriented integration concept for a half-bridge switch assembly has been developed based on the latest generation 70- μm-thin insulated gate bipolar transistors and diodes, which are rated at 600 V/200 A. This paper addresses the design and reliability of the assembly, with a fully bondwireless approach using cylindrical copper bumps. Advanced numerical structural simulation techniques are also applied to assess the influence of interconnect characteristics (material, size, and shape) and try to determine an optimum solution for reducing the stress and creep strain development in the solder joint. Preliminary experimental tests of the power module are also carried out at different switching frequency and loads to prove the validity of the proposed solution in terms of electromagnetic performance.

Item Type: Article
Additional Information: c2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Keywords: Bridges; Copper; Electronics packaging; Flip chip devices; Insulated gate bipolar transistors (IGBT); Power electronics Application-oriented; Copper bumps; Electromagnetic performance; Experimental test; Flip chip; Solder joints; Structural simulations; Thermo-mechanical stress Integrated circuit interconnects
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number:
Depositing User: Burns, Rebecca
Date Deposited: 17 May 2016 13:39
Last Modified: 04 May 2020 20:10

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