TWI257168B - Method for allocating spare cells in auto-place-route blocks - Google Patents
Method for allocating spare cells in auto-place-route blocksInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
2003
- 2003-07-30 TW TW92120772A patent/TWI257168B/en not_active IP Right Cessation
- 2003-08-11 CN CNB031278310A patent/CN100490120C/en not_active Expired - Lifetime
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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