1. G9.1LT CT ET media impact study - Xiaoqi
G9.1LT vs baseline G9.1B media impact study was reviewed. Disks are centerline (not silver disks) from Woodlands (not from Fremont). Seeing 0.2 u" wider WPE on G9.1LT media that also inflates EBs by ~ 3-4 nm. See 3.5 dB OVW and 0.25 dcd BER improvement as a mean, however, when WPE is normalized, we see little to no gain. Also see only 1% sADC gain (3.4% BPI gain and 2.4% TPI loss) as a mean, however, when WPE is normalized, we see little to no gain. CTQ_ADC also sees no gain. Need to understand differences between Fremont and Woodlands G9.1LT media as RMO component and LCO drive data using Fremont samples did not show such large TPI loss. Need to review drive learning from Woodlands G9.1LT and discuss ET cut in plans based on understanding.
- Xiaoqi to share learning on Abebe's call FW1351
- Xiaoqi to provide media lot information to Diane
- Diane to look at recent drive builds from Woodlands G9.1LT and the same lot that was used on coreteam if available at drive
2. P5R (lead two wafers) CT ET results - Xiaoqi/Yichun
Only a verbal update as data rolled in late monday night and we haven't had a chance to dig in deep. P5R had 4 features (TPWT/BP6.0) built out on the coreteam. F1 seems to be comparable to BT9 performance, however, F2/3/4 are underperforming. Investigation on going ..
- Yichun/Xiaoqi/Manish/Shi-di to summarize overall learning for review with LCO late FW1351
3. Drive updates if any - Diane
Drive code tuning is on-going. We still do not have drives through TVM. LCO team is focusing on Karnak2.0 bring up and G10.5B media swaps in addition to VBAR11 tuning.