If base on ET data by wafer of PCO4.1 RGA, we found 6 wafers showed low ET yield that major higher MIN_SNR failure as follow: DB30SO / DB30SQ / DB30SR / DB30ST / DB30T6 / DB30T7.
Could you please help to verify this wafer if any abnormality. Now we hold all HGA and we recommend to hold this wafer or screen.
Though they agree ship to HSA and Drive, we will ship HGA by this week but please be aware on this issue.