This invention pertains to a method for the systematic development of
integrated chip technology. The method may include obtaining empirical
data of parameters for an existing integrated circuit manufacturing
process and extrapolating the known data to a new technology to assess
potential yields of the new technology from the known process. Further,
process variables of the new process may be adjusted based upon the
empirical data in order to optimize the yields of the new technology. A
logic based computing system such as a fuzzy logic or neural-network
system may be utilized. The computing system may also be utilized to
improve the yields of an existing manufacturing process by adjust process
variables within downstream process tools based upon data collected in
upstream process for a particular semiconductor substrate or lot.