Presentation 2009-09-24
A Detail Via Arrangement Method for Reduction of Wire Congestion in 2-Layer Ball Grid Array Packages
Masaki KINOSHITA, Yoichi TOMIOKA, Atsushi TAKAHASHI,
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Abstract(in English) A BGA package realizes a lot of connections between a chip and a printed board. The quality of routing design obtained by manual is high, but it takes much time since it must take a lot of constraints into account. For example, vias must be arranged in appropriate positions so that they connect high-density routings between different layers while avoiding obstacles. Therefore, BGA package routing automation is required in industry. In this paper, we propose a detail via arrangement method that derives detailed routing patterns that satisfy the design rule of both layers from global routing patterns. Our proposed method is based on a dynamic programming. We show that our proposed method obtains an optimum detail via arrangement in almost linear time in terms of the number of rows of vias.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) BGA package / package routing / detail via arrangement
Paper # VLD2009-30
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Committee VLD
Conference Date 2009/9/17(1days)
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Registration To VLSI Design Technologies (VLD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Detail Via Arrangement Method for Reduction of Wire Congestion in 2-Layer Ball Grid Array Packages
Sub Title (in English)
Keyword(1) BGA package
Keyword(2) package routing
Keyword(3) detail via arrangement
1st Author's Name Masaki KINOSHITA
1st Author's Affiliation Department of Communications and Integrated Systems, Tokyo Institute of Technology()
2nd Author's Name Yoichi TOMIOKA
2nd Author's Affiliation Department of Communications and Integrated Systems, Tokyo Institute of Technology
3rd Author's Name Atsushi TAKAHASHI
3rd Author's Affiliation Division of Electrical, Electronic and Information Engineering, Osaka University
Date 2009-09-24
Paper # VLD2009-30
Volume (vol) vol.109
Number (no) 201
Page pp.pp.-
#Pages 6
Date of Issue