Author Archives: WorkingBear


May05
Why Burn/In(B/I) still cannot screen out the DDR soldering fail?

Recently we met a DDR memory BGA (Ball Grid Array) soldering fail issue. Actually the is HIP (Head-In-Pillow) that two balls under the BGA package. We sent a people to field to check how customer do the operation and found … Continue reading

May01
How come the screw boss crack after mold-in screw insert?

Actually this is long ago issue and WorkingBear write down this article just for a record. One day we received a complaint from field and complained our product had plastic house broken issue. Actually this crack can be saw from … Continue reading

Apr29
How to design LCM gasket/cushion for manufacture?

The LCM (LCD Module) is a common component for the electronic products. Almost of the LCM was made by glass and it is brittle and  break easily while hit or drop on the floor due to handle careless. As product … Continue reading

Apr27
How EMS fabricate a PCB Assembly?

How EMS (Electronic Manufacturing Services) fabricate a PCB (Printed Circuit Board) Assembly? This article is writing for the people who still not yet really under what is the PCB Assembly. Because WorkingBear found there are many people just come to … Continue reading

Apr24
How to select a good actuator design for right angle connector?

As my personal feeling that Right-angle FPC ZIF connector is really more easily to use than Drawer type of ZIF connector. Even right-angle connector is good but do you know how to select a good design of this kind of … Continue reading