Automatic synthesis of standard cell layouts

Details Automatic synthesis of standard cell layouts Automatic synthesis of standard cell layouts

1996-11-01

1999-11-16

Teska, Kevin J.

Boots, shoes, and leggings

364488, G06F 1750

Patent

active

059845104

ABSTRACT:
A method for automatically synthesizing standard cell layouts(170) given a circuit netlist, a template describing the layout style and a set of process design rules (136) starts by numerating an ordered sequence of physical netlists from the logical netlist(138). Next, a netlist is selected from the ordered sequence of physical netlists (140). Components are placed according to the selected physical netlist (144). The components are routed to implement interconnections specified by the netlist (154). The components are compacted (156). A next netlist is selected from the ordered sequence of physical netlists. The steps of placing, routing and compacting the components are repeated. The layout with the smallest width is selected(166). Finally, ies, contacts and vias are added and notches filled (170) to improve yield and performance of the circuit.

REFERENCES:
patent: 4630219 (1986-12-01), DiGiacomo et al.
patent: 5097422 (1992-03-01), Corbin, II et al.
patent: 5463563 (1995-10-01), Bair et al.
patent: 5625568 (1997-04-01), Edwards et al.
patent: 5633807 (1997-05-01), Fishburn et al.
patent: 5666288 (1997-09-01), Jones et al.
patent: 5701255 (1997-12-01), Fukui
patent: 5726902 (1998-03-01), Mahmood et al.
patent: 5737236 (1998-04-01), Maziasz et al.
patent: 5764533 (1998-06-01), DeDood
Chao C.Chen and Shau-Lim Chow,"The Layout Synthesizer:An Automatic Netlist-to-Layout System," in Proc. 26th ACM/IEEE Design Automation Conf., Jun. 1989, pp. 232-238.
Chong-Leong Ong, Jeong-Tyng Li and Chi-Yuan Lo, "GENAC An Automatic Cell Synthesis Tool," in Proc. 26th ACM/IEEE Design Automation Conf., Jun. 1989, pp. 239-244.
C.W.Kapral, J.J-Y, Chen, J. Chen,J. Do, and C.R.Fawcett, "Layout Synthesis:An Automatic Cell Generator", Silicon Compiler Systems. no date, no pg #s.
Virtuoso Layout Synthesizer (LAS) User Guide Version 4.2-Cadence Design Systems, Oct. 1991.
M.Lefebvre and D.F.Skoll,"Picasso II:A CMOS leafe cell synthesis system," in Proc .of International Workshop on Layout Synthesis, pp. 207-219, 1992.

Affiliated with

Also associated with

Rating

Automatic synthesis of standard cell layouts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic synthesis of standard cell layouts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic synthesis of standard cell layouts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1315302