FAILURE ANALYSIS/CORR. ACTION RPT
HALO / PBL
D3: IMPLEMENT & VERIFY CONTAINMENT ACTIONS
D/C: N/A Qty.: N/A ETA: N/A
In-Hou Stock Sorted D/C: 1343 Qty.: 4500 Pass: 172 Fail: 0 Qty.: 3500 Pass: 172 Fail: 0
Electrical functional verification test was performed at ambient environment with production testing tup, confirmed that returned defective part was failed as high impedance between J3 to J6. Verification test result for major parameter was shown below;个人鉴定怎么写
Parameter OCL (uH)
DCR (Ohm)
Inrtion
Loss
Return
棵组词二字Loss
Test Condition 100KHz, 0.1V, 0.8 1-100MHz 1-100MHz
适合生日发朋友圈的句子
Tested Pins J1-J2 :
MD0+-MD0-
J3-J6 :
红掌的养护方法
MD1+-MD1-
网店代销J4-J5 :
中国十大军校排名MD2+-MD2
J7-J8 :
-MD3-
J1-J2 :
CT0-MD0-
J3-J6 :
CT1-MD1-
Specification 400 (Min.)
Test Result 757.2 691.2 718.3 731.6 200.10 150.72 Failed Failed Defective part was disasmbled, the plastic cover was removed and the PCB was cut off, the solder joint of the toroid coil center tap wires soldered on internal posts were inspected under 30x magnifications, obrved that the toroid coil terminal wires wrapped and soldered on the post which was connected to J3 to J6 was broke at the root of the solder joint (e illustration shown below).
烤小面包Red & green wires哺乳期能吃海参吗
were broken
To verify the failure mode, the broken portion of the wire was re-soldered to made connection with the post pin, and the PCB was replaced. Part pasd all electrical parameters tests.
Production main process such as Toroid coil winding àAsmbling & Soldering Visual inspection à Silicone coating and the manufactory process records for part with date code 1328 was audited without abnormity finding. But obrved that during manual asmbly process the wire may have chance to slightly stresd and damage accidentally when adjusting the toroid coil position after asmbling and soldering. Caud the wire was weaken and the wire was broken the field. Becau of the part exhibited good continuity condition during the in-hou electrical functional testing and pasd electrical testing process prior to shipment.
reviewed, the latest reliability test for this part was done on Q2 this year, Parts pasd all requested tests including temperature cycling test,
life test etc., details plea refer to attached
