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Optimal selection of IC fabrication parameters
Author(s) -
Karmokolias C.,
Portnoy W. M.,
Saeks R. E.
Publication year - 1981
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490090207
Subject(s) - fabrication , bandwidth (computing) , computer science , set (abstract data type) , amplifier , simple (philosophy) , electronic engineering , selection (genetic algorithm) , process (computing) , variable (mathematics) , mathematics , engineering , telecommunications , medicine , mathematical analysis , philosophy , alternative medicine , pathology , epistemology , artificial intelligence , programming language , operating system
A procedure is described in which the output characteristics of an integrated circuit are optimized with respect to a set of variable fabrication parameters. A simple RC coupled audio amplifier is used as an example. The gain–bandwidth product is obtained as a function of oxidation and diffusion times and temperatures, and the optimization is performed by way of a line search using these variables as the parameters of the optimization. The values established for the process parameters are consistent with those employed for conventional fabrication, and desired changes in performance can be obtained, in general, by a straightforward readjustment of the values of the process variables. Although limited by certain assumptions and a relatively primitive circuit, the results demonstrate the validity of the procedure.