In this subsection we examine a fabrication process flow that has been used by Intel corporation to produce computer CPUs and other ICs. The process flow description and associated figures are a direct excerpt, reprinted with permission, from Components Quality and Reliability 1991/1992,Intel Coparation, 1990.No changes have been made to the excerpted material except for a renumbering of the figures and a modification of the figure captions. Figure 4.16, reproduced from the cited reference, displays a simplified block dia