When IPQC line patrol found a PECVD process L4 line due to excessive thickness of the refractive index of isolation: 308pcs, put: 308pcs, bad ratio: 100%
IPQC line inspection found that the PECVD process L4 line 1 tube due to film thickness refractive index exceeded isolation: 308pcs, input: 308pcs, adverse ratio: 100%