First pass rate: the first pass rate is the parameter that the product passes the first process to the last process. It can know the ability of products to reach finished products in all processes in the production process, and it is a parameter reflecting the quality control ability of enterprises.

Yield: also known as "qualified rate". One of the product quality indicators refers to the percentage of qualified products in all processed products. In semiconductor technology, the yield of production line represents the probability of wafer from off-line to successful delivery.

Related information:

First Pass Yield) is an index to measure the quality level of production line, which is used to describe some situation of production quality, work quality or test quality. Specifically, it refers to the number of good products that passed all tests in the first process among 65,438+000 sets of materials put into the production line. Therefore, products that pass the test after rework or maintenance of the production line will not be included in the calculation of the first pass rate.