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As discussed in the previous meeting, we upload 13 gaps in the database.

Discussion for QC steps Leak & Pop Spacers. As discussed in the previous meeting, we upload 13 gaps in the database. 30 gaps with  RE4/2 types with Batch 12 HPLs. D estroyed ~ 20 gaps to investigate the inside oil condition. P roblem !

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As discussed in the previous meeting, we upload 13 gaps in the database.

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  1. Discussion for QC steps Leak & Pop Spacers As discussed in the previous meeting, we upload 13 gaps in the database. 30 gaps with RE4/2 types with Batch 12 HPLs. Destroyed ~ 20 gaps to investigate the inside oil condition. Problem ! In the test step for leak & pop spacers test, the current rejection limits seem to be too tight. We have to take into account pressure & temperature variation of the test laboratory. The pressure measured by the sensor is the gauge pressure p – p0, NOT absolute pressure. 1. Variation of p0 outside 2. Variation of T of air inside the gap ∆T = 0.1o during the 10 minutes causes a pressure variation ~ 0.33 hPa. 0.2 hPa would be an uncontrollable amount.    The proper rejection limits seem to be RE4/2 TW: 0.3 hPa, RE4/2 TN: 0.3 hPa, RE4/2 B: 0.4 hPa RE4/3 TW: 0.3 hPa, RE4/3 TN: 0.4 hPa, RE4/3 B: 0.5 hPa

  2. RE4/2 bottom (large gaps) KODEL-TEST-RE4-2-B004 KODEL-TEST-RE4-2-B005 KODEL-TEST-RE4-2-B006 KODEL-TEST-RE4-2-B007 KODEL-TEST-RE4-2-B008 KODEL-TEST-RE4-2-B009 KODEL-TEST-RE4-2-B010

  3. KODEL-TEST-RE4-2-TW004 KODEL-TEST-RE4-2-TW006 RE4/2 Top wide (small gaps) KODEL-TEST-RE4-2-TN004 KODEL-TEST-RE4-2-TN005 RE4/2 Top narrow (mid-sized gaps) KODEL-TEST-RE4-2-TN006 KODEL-TEST-RE4-2-TN008

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