Abstract
In this paper, we consider continuous wiresizing optimization for nonuniform wires. Our objective is to find the shape function of a wire which minimizes delay. This problem has been studied recently under the Elm ore delay model. However, it is well known that Elmore delay is only a rough estimate of the actual delay and thus more accurate models should be used to determine the wire shape function. Our study uses the transmission line model which gives a very accurate estimation of the actual delay. Since previous studies under Elmore delay model suggest that exponential wire shape is effective for delay minimization, we restrict the wire shape function to be of the form f(x) = ae^{bx}. By solving the diffusion equation, we derive the transient response in the time domain as a function of a and b for both step and ramp input. The coefficients a and b are then determined so that the actual delay (50% delay) is minimized. Our algorithm is very efficient. In all the experiments we performed, the wire shape functions can be determined in less than 1 second.
Original language  English 

Title of host publication  ICCAD '98 
Subtitle of host publication  Proceedings of the 1998 IEEE/ACM International Conference on ComputerAided Design 
Publisher  Association for Computing Machinery (ACM) 
Pages  611616 
Number of pages  6 
ISBN (Print)  9781581130089 
DOIs  
Publication status  Published  8 Nov 1998 
Event  1998 IEEE International Conference on ComputerAided Design, ICCAD 1998  San Jose, United States Duration: 8 Nov 1998 → 12 Nov 1998 https://dl.acm.org/doi/proceedings/10.1145/288548 (Conference proceedings) 
Publication series
Name  IEEE/ACM International Conference on ComputerAided Design, Digest of Technical Papers 

ISSN (Print)  10923152 
ISSN (Electronic)  15582434 
Conference
Conference  1998 IEEE International Conference on ComputerAided Design, ICCAD 1998 

Country/Territory  United States 
City  San Jose 
Period  8/11/98 → 12/11/98 
Internet address 

Scopus Subject Areas
 Software
 Computer Science Applications
 Computer Graphics and ComputerAided Design