Title :
The CDB/HCDB semiconductor wafer representation server
Author :
Walker, Duncan M H ; Kellen, Christopher S. ; Svoboda, David M. ; Strojwas, Andrzej J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
2/1/1993 12:00:00 AM
Abstract :
The chip database (CDB) and the hierarchical chip database (HCDB) and their uses in a wafer representation server are described. The server provides data types and methods for hierarchically representing the three-dimensional geometry and fields of a semiconductor wafer during process, device, and yield simulation. The basic database data types and the general attribute mechanism have been used to create database extensions. These extensions implement operations frequently used by process and device simulation models. The combination of the databases and extensions forms a CDB/HCDG server that greatly reduces the effort required to create new statistical process, device, and yield simulation models. Examples of using the server to implement new models are described. Performance data demonstrate that the server is fast enough for use by analytical models during statistical simulation of macrocells, and is able to meet the representation needs of numerical simulation
Keywords :
digital simulation; electronic engineering computing; semiconductor process modelling; statistical analysis; device simulation models; hierarchical chip database; macrocells; process simulation; semiconductor wafer representation server; statistical simulation models; three-dimensional geometry; yield simulation; Analytical models; Circuit simulation; Computational modeling; Finite difference methods; Geometry; Numerical simulation; Piecewise linear techniques; Semiconductor device modeling; Solid modeling; Spatial databases;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
