Systematic control of cross fabrication (fab) engineering changes in integrated circuit (IC) foundry manufacturing

摘要

System and method for controlling and propagating engineering changes in integrated circuit manufacturing. A preferred embodiment comprises a technical board (T/B, for example, T/B 220) and a technical database (TTD, for example, TTD 225). The T/B 220 gives permission to an IC fab (for example, IC fab A 205) prior to the IC fab making any changes to a fabrication process. The IC fab then makes an experimental run and reports the results to the T/B 220. The results may then be verified by additional experimental runs at other IC fabs. If the results are acceptable to the T/B 220, a new best known method is created and stored in the TTD 225 and is propagated to other IC fabs if these IC fabs uses the technology relevant to the best known method.