Monthly Archives: March 2023


Mar29
Why BGA soldering ball always crack(11)? Stress is the Biggest Culprit in Causing BGA Solder Joint Cracks

post on March 29, 2023

The earlier sections of the article that Workingbear spent a lot of time discussing how to strengthen the bonding force of PCBAs and increase the stress resistance of electronic products. Now, we can finally talk about the biggest culprit causing … Continue reading →

Design, PCB/FPC/PTF, SMT, Soldering     WorkingBear    Views (4,631)     comment (0)
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Mar21
Why BGA soldering ball always crack(10)? Reduce the impact of PCB bending through the mechanism design change

post on March 21, 2023

Reducing the Impact of Stress on PCB Deformation through Mechanism Design In earlier sections, WorkingBear briefly mentioned the possible solution by  changing mechanism design to address the problem of solder cracking. One such approach involves replacing the SMDs (surface mount … Continue reading →

Design, PCB/FPC/PTF, SMT, Soldering     WorkingBear    Views (3,676)     comment (0)
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Mar15
Why BGA soldering ball always crack(9)? Increase the resistance of components to stress

post on March 15, 2023

How to increasing the ability of components to resist stress?(Continuing from the previous article) 2. No solder balls on BGA four corners, or use dummy balls instead of them. If you had studied the actual phenomenon of BGA solder cacking … Continue reading →

Design, PCB/FPC/PTF, SMT, Soldering     WorkingBear    Views (3,788)     comment (0)
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Mar10
Why BGA soldering ball always crack(8)? Increase PCB stiffness to resist stress and avoid board bending

post on March 10, 2023

In the previous article, WorkingBear talked about how to improve the adhesion of PCA to resist the impact of stress. Today, We will move on to another topic: “How to increase the ability of components or circuit boards to resist … Continue reading →

Design, PCB/FPC/PTF, SMT     WorkingBear    Views (3,946)     comment (0)
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Mar07
Why BGA soldering ball always crack(7)? The Bonding force between solder pad of copper foil and PCB substrate

post on March 7, 2023

PCB is composed of layers of Copper Clad Laminate (CCL) and Prepreg (PP) stacked together. In modern PCB manufacturing, CCL has become a standard material. Each CCL manufacturer provides customers with product specifications that indicate the peel strength of the … Continue reading →

Design, SMT, Soldering     WorkingBear    Views (5,684)     comment (0)
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