G104STN01 V0 V block Failure Analysis Report-AU Optronics
Date:2025-10-21
Step 1 Problem definition / Improvement subject & Target setup
General Information
No. | Item | Information |
1 | Customer (Site) | Xuhong |
2 | Panel Source | RMA |
3 | RMA No. | 752512101970 |
4 | Customer Complain | V block |
5 | Project Name/AUO Model (Week Code) | 旭虹/G104STN01 V0 (25/21) |
6 | AUO S/N(MFG Site | 2835CB00GSZZZS0101 (S01) |
7 | Receive/Finish Date | 2025-8-29 / 2025-9-3 |
8 | Receive Q’ty | 1 |
9 | Defect rate | (Still waiting for feedback) |
10 | Customer:1.RA or Aging test 2.Reject site | Line reject |
11 | History | Have No Repair History In MA Process |
Step 2 Fact & Data Finding analysis
Failure description
How :
1. When using the AU fixture to light up normally, a V block was found;
How :
2. Confirm that there are no obvious abnormalities in the appearance of the LCD;
How :
3. Confirm that the IC bonding corresponding to V block is NG;
Summary
1. When using the AU fixture to light up normally, a V block was found;
2. Confirm that there are no obvious abnormalities in the appearance of the LCD;
3. Confirm that the IC bonding corresponding to V block is NG;
Conclusion
V block is caused by IC bonding NG.
More AU 10.4-inch LCD screens：https://www.auo-lcd.com/products/auo-lcd-screen/10_4inch/
