Monthly Archives: May 2015


May27
Improve BGA Solderability By Partially Increasing Solder Paste Volume

post on May 27, 2015

Improving the solderability of BGA (Ball Grid Array) packages is always a big challenge for the SMT (Surface Mount Technology) process. Fine pitch BGAs (with a ball pitch less than 0.8mm) are particularly difficult to solder onto the PCB. Additionally, … Continue reading →

Design, Manufacture, Quality, Soldering     WorkingBear    Views (11,705)     comment (0)
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May20
Shipping carton drop/impact test condition

post on May 20, 2015

Do you know how vendor ensure that their products are not damaged during shipping due to handling by transporters or delivery personnel? Reputable vendors put effort into designing and selecting suitable packaging materials for shipping to ensure the quality of … Continue reading →

Corrugated Paper, Design, Manufacture     WorkingBear    Views (4,703)     comment (0)
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May14
Temperature Environmental Cycle Profile

post on May 14, 2015

The purpose of temperature environmental test is that the good are shipped by various types of carriers and experience a wide range of storage temperatures, depending on the customer environment, hence the need for this kind of testing. Further, certain … Continue reading →

Design, Reliability     WorkingBear    Views (7,467)     comment (0)

May12
Humidity Temperature Cycle Profile

post on May 12, 2015

The humidity test is designed to determine the effects of humidity on the product and assure that the product will meet published specifications while being subjected to high humidity conditions. This is an accelerated test to uncover failure modes in … Continue reading →

Design, Reliability     WorkingBear    Views (9,626)     comment (0)

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 (8,329)     comment (0)
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