wafer lot

Standard

ECSS-Q-ST-60-12C

Definition

wafers manufactured from one or more batch lots

Notes

  • NOTE Depending on the maturity of the process a wafer lot is defined as follows:     - Case 1 (non-evaluated or qualified process): a wafer lot is a single wafer.     - Case 2 (evaluated or qualified process and new MMIC design): a wafer lot is one batch lot.     - Case 3 (mature process and recurrent MMIC design): a wafer lot is considered to be a production lot of 4 batches manufactured within a 3 month period.
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