Category Archives: Design


Jun12
Impact Drop Test Requirements in Electronic Product Development

post on June 12, 2025

During the design and verification phase of electronic products, an Impact Drop Test is a standard procedure. This test is generally divided into two phases: Product Drop Test – Testing the device without packaging. Packagage Drop Test – Evaluating the … Continue reading →

Design, Plastic, Quality, Reliability     WorkingBear    Views (3,986)     comment (0)

Jun05
Tumble Test: How to Prevent PCB and BGA Failures in Electronics Manufacturing

post on June 5, 2025

From what I remember, one of the earliest and most frequent requests for tumble testing came from Motorola. Since some of Motorola’s mobile phones and products were designed for military use, their reliability and quality standards were exceptionally strict. However, … Continue reading →

Design, Process, Quality, Reliability     WorkingBear    Views (2,657)     comment (0)

May08
The Deep Dive: BGA Pads: SMD vs. NSMD (Strength, Voids & Design Considerations)

post on May 8, 2025

Hey folks, welcome back to the blog! Today, we’re diving deep into something absolutely critical for the reliability of almost every electronic gadget out there: BGA solder joints. You know, those tiny connections that hold complex chips onto our printed … Continue reading →

Design, PCB/FPC/PTF, Process, Quality, Reliability, SMT     WorkingBear    Views (6,545)     comments (1)
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Mar27
Does PCB Solder Mask Misalignment Lead to BGA Soldering Defects?

post on March 27, 2025

Recently, our company started a new project, and the R&D team has been pushing PCB layout requirements to the extreme. As PCBs size get smaller, the solder mask (S/M) design must also shrink accordingly. However, our current PCB manufacturers struggle … Continue reading →

Design, PCB/FPC/PTF, Process, Quality, SMT, Soldering     WorkingBear    Views (3,395)     comment (0)
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Feb27
What Is Solder Mask (S/M)? What Is Its Purpose on a PCB? Why Is It Usually Green?

post on February 27, 2025

In discussions about printed circuit boards (PCBs), you’ll often hear the term Solder Mask (S/M). But what exactly is a solder mask, and what role does it play in a PCB? Some also refer to it as solder resist. What … Continue reading →

Design, PCB/FPC/PTF, SMT, Soldering     WorkingBear    Views (5,562)     comment (0)
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