TWI257168B - Method for allocating spare cells in auto-place-route blocks - Google Patents

Method for allocating spare cells in auto-place-route blocks

Info

Publication number
TWI257168B
TWI257168B TW92120772A TW92120772A TWI257168B TW I257168 B TWI257168 B TW I257168B TW 92120772 A TW92120772 A TW 92120772A TW 92120772 A TW92120772 A TW 92120772A TW I257168 B TWI257168 B TW I257168B
Authority
TW
Taiwan
Prior art keywords
cells
place
auto
boundary
spare
Prior art date
Application number
TW92120772A
Other languages
Chinese (zh)
Other versions
TW200416998A (en
Inventor
Mark Brazel
Alexander Essbaum
Original Assignee
Ip First Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/373,989 external-priority patent/US6993738B2/en
Application filed by Ip First Llc filed Critical Ip First Llc
Publication of TW200416998A publication Critical patent/TW200416998A/en
Application granted granted Critical
Publication of TWI257168B publication Critical patent/TWI257168B/en

Links

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  • Design And Manufacture Of Integrated Circuits (AREA)

Abstract

A method for placing spare cells into an auto-place-route (APR) block of an integrated circuit is disclosed. The list of functional cells to be included in the block is determined along with the netlist. The sum of the areas of the functional cells and the desired spare cell area is used as the area of the block boundary. The boundary is provided as input to an auto-placement tool along with the netlist and the list of functional cells. The list of functional cells specifically dose not include the spare cells so that the tool dose not place cells in the boundary. Consequently, the spare cell area may be utilized as wiggle-room by the tool to efficiently place the functional cells. The tool produces a placement of the functional cells that includes white space in the boundary. Spare cells are then placed into the white space.
TW92120772A 2003-02-25 2003-07-30 Method for allocating spare cells in auto-place-route blocks TWI257168B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/373,989 US6993738B2 (en) 2002-06-18 2003-02-25 Method for allocating spare cells in auto-place-route blocks

Publications (2)

Publication Number Publication Date
TW200416998A TW200416998A (en) 2004-09-01
TWI257168B true TWI257168B (en) 2006-06-21

Family

ID=34272266

Family Applications (1)

Application Number Title Priority Date Filing Date
TW92120772A TWI257168B (en) 2003-02-25 2003-07-30 Method for allocating spare cells in auto-place-route blocks

Country Status (2)

Country Link
CN (1) CN100490120C (en)
TW (1) TWI257168B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418543C (en) * 2006-09-25 2008-09-17 辽宁大生药业有限公司 Double resin process for preparing high quality active gingko leaf component extract
CN104200009B (en) * 2014-08-11 2017-03-29 华东师范大学 A kind of visualization interactive simulation method of multilayer circuit structure high-density wiring
CN105702673A (en) * 2014-11-28 2016-06-22 刘邦俊 Layout structure and method of integrated circuit
US10127340B2 (en) * 2016-09-30 2018-11-13 Taiwan Semiconductor Manufacturing Company, Ltd. Standard cell layout, semiconductor device having engineering change order (ECO) cells and method
CN108268693B (en) * 2016-12-15 2023-09-01 台湾积体电路制造股份有限公司 Method and system for dividing power-ground cell group
CN109671704A (en) * 2018-12-24 2019-04-23 成都华微电子科技有限公司 Embedded eflash mass storage circuit design preparation method
CN111475994B (en) * 2020-03-30 2021-04-09 安徽省东科半导体有限公司 Automatic layout method for filling ring in chip design

Also Published As

Publication number Publication date
TW200416998A (en) 2004-09-01
CN100490120C (en) 2009-05-20
CN1514482A (en) 2004-07-21

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