Presentation 2009-06-24
Simulation and Experiment of Liquid-Phase Microjoining Using Cone-Shaped Compliant Bump
Li Jing Qiu, Naoya Watanabe, Tanemasa Asano,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to meet the requirements of high-density interconnection in 3D-LSI, we have proposed easy-deforming compliant bumps (10μm-diameter/20μm-pitch) to lower the pressing load during bonding. But still, when the number of I/O connections approaches to or larger than 1,000,000, the pressing load becomes too heavier to be carried out by an available flip-chip bonder. The load problems of compliant bumps can be overcome by liquid phase bonding method. On the other hand, the shrinkage of bump Pitch is restricted by the spread of melting solder as far as the existing bump technology is used. In this paper, this constraint can be overcome by using the cone-shaped compliant bump as a counter electrode of solder bump. We show experimental results together with simulation of fluid dynamics of molten solder.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) compliant bump / solder electrodes / liquid phase bonding / simulation / interconnection
Paper # ED2009-66,SDM2009-61
Date of Issue

Conference Information
Committee SDM
Conference Date 2009/6/17(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Silicon Device and Materials (SDM)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Simulation and Experiment of Liquid-Phase Microjoining Using Cone-Shaped Compliant Bump
Sub Title (in English)
Keyword(1) compliant bump
Keyword(2) solder electrodes
Keyword(3) liquid phase bonding
Keyword(4) simulation
Keyword(5) interconnection
1st Author's Name Li Jing Qiu
1st Author's Affiliation Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University()
2nd Author's Name Naoya Watanabe
2nd Author's Affiliation Fukuoka Industry, Science & Technology Foundation (Fukuoka IST)
3rd Author's Name Tanemasa Asano
3rd Author's Affiliation Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
Date 2009-06-24
Paper # ED2009-66,SDM2009-61
Volume (vol) vol.109
Number (no) 98
Page pp.pp.-
#Pages 4
Date of Issue