Category Archives: Soldering


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

post on May 5, 2015

We recently encountered a soldering issue with a DDR memory BGA (Ball Grid Array). The problem identified was HIP (Head-In-Pillow) — two balls with non-wetting under the BGA package were affected. To investigate, we sent someone to the field to … Continue reading →

Manufacture, Quality, Soldering     WorkingBear    Views (6,299)     comment (0)
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Apr27
How EMS fabricate a PCB Assembly?

post on April 27, 2015

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 →

Manufacture, SMT, Soldering     WorkingBear    Views (12,588)     comments (2)
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Apr23
The benefit to use shielding clips to instead of shielding frame

post on April 23, 2015

For almost of the frequency radio apparatus, the Printed Circuit board must design the shielding frame/can to prevent the EMI (Electromagnetic Disturbance Interference) effect. The regular design will apply one shielding frame to mount on PCB by solder and another … Continue reading →

Design, SMT, Soldering     WorkingBear    Views (6,553)     comment (0)