E-Coat 工艺流程表

OPERATION FLOW SYMBOLS:
STORAGE
OPERATION
MATERIAL INPUT
INSPECTION
TERMINATION
Name/Signature/Date
P/No:NA P/Name for all Seagate models Author/Signature : PAGE NO Trigger Points Tang qinde : 1 OF 1 Alert Level Contingent Actions
Process: PRETREATMENT
Chemical Used Make UP Water Agitation Time (sec) Bath Change Frequency Process Controls/ Parameters Spec. Limits
468PCS/rack 40～50℃ 1)5%~20% 2)40～50℃ Once/shift Once/shift NA NA Once/Shift Once/Shift lab lab NA NA lab lab NA NA trend chart trend chart titration titration trend chart 1)titration 2)Thermometer
1 1
replenish/dilute replenish/dilute
1)>30℃ or <15℃
1 1 1
1)cooling/heat 2) replenishment/dilute 3) replenishment/dilute
2)PH Meter or PH paper 2)<3.1 or >3.6 3)titration 3)<1.5 or >3.8
Analysis Frequency
Who
Control Chart
Analysis/ Equipment
>50℃ or <40℃ 1)<6% or >19% 2)>50℃ or <40℃ 1
cooling/heat 1) replenish/dilute 2) cooling/heat
<57% or >68% <57% or >68%
PCPF No/ REV:
A
Supplier Name : PLATING /CLEANING PROCESS FLOW(PCPF)
DATE: 15-Dec-09 No Operation Process Flow Description
1 2 3 4 5 6 7 8 9 10 11 Material input Hot rinse Etching Rinse Rinse Dismutting Dismutting DI Rinse DI Rinse DI Rinse conversion coating 12 13 DI Rinse hot DI Rinse Henkel Alodine 5200 DI DI Air Air 40～50s 50～70s HNO3 HF (1~2%) HNO3 HF (1~2%) DI Water DI Water DI Water DI Water Air Air Air Air 25～30s 20～25s 10～20s 60～70s Daily Daily Daily twice/week or 300k Daily Daily 1)Cond. 2)PH 3)Bath Temp. 14 15 DI Rinse hot DI Rinse DI DI Air Air 10～20s 50～70s Daily Daily 1)Cond. 2)PH 3)Bath Temp. 16 17 18 drain Air knife pre-baking NA NA ＞8mins Daily Temp. 70~120℃ Once/day tech display NA NA NA NA NA 1)<50us/cm 2)6.0～8.0 3)50~70℃ NA Once/Shift Once/Shift Once/Shift NA lab lab lab NA trend chart trend chart trend chart 1)conductivity meter 3)Thermometer 1)<50us/cm 2)6.0～8.0 3)40~60℃ Once/Shift Once/Shift Once/Shift lab lab lab trend chart trend chart trend chart 1)conductivity meter 3)Thermometer NA NA NA 1)Bath Temp. 2)PH 3)Conc. 1)15~30℃ 2)3.1～3.6 3)1.5%~4.0% Once/Shift Once/Shift Once/Shift lab lab lab trend chart trend chart trend chart 1)Thermometer NaOH 5%~20% City Water City Water DI water DI water Air Air Air Air 20～30s 20～30s 40～70s 20～30s Daily Daily Daily/100K Daily/100K City Water DI water Air 30～50s Daily/100K 1)Conc. 2)Bath Temp. NA NA Conc. Conc. 55%~70% 55%~70%
1)>50us/cm 3)>60℃ or <40℃
1 1 1
1) Change bath 2) Change bath 3)cooling/heat
2)PH Meter or PH paper 2)<6.0 or >8.0
1)>50us/cm 3)>70℃ or <50℃
1 1 1
1) Change bபைடு நூலகம்th 2) Change bath 3)cooling/heat
2)PH Meter or PH paper 2)<6.0 or >8.0
＜ 70 or ＞120℃
1
ALERT LEVEL: 1.INFORM SUPERVISOR 2.INFORM QA/ENG/PROD MANAGER 3.INFORM MANAGER/GM/DIRECTOR APPROVED BY SEAGATE SQE