Category Archives: Manufacture


Mar09
What Process Impact of Substituting SMDs with Paste-In-Hole components?

post on March 9, 2016

One day, my manager asked me a question: “Will changing the components from SMDs (Surface Mount Devices) to THDs (Through Hole Devices) and using the PIH (Paste-In-Hole) process affect the process and design?” I later realized that the question aimed … Continue reading →

Manufacture, SMT, Soldering     WorkingBear    Views (7,627)     comment (0)
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Feb01
Solder Preforms – Another Choice for Solder Volume Increasing Solution

post on February 1, 2016

Today, most of electronic components are developed into smaller size. The small chips are downsized from 1206 to 0805, 0603, 0402, 0201, even to 01005. The size of chip is smaller; the required solder volume is less. Moreover, the required … Continue reading →

Manufacture, SMT, Soldering     WorkingBear    Views (10,251)     comment (0)
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Jan04
What is Step-up & Step-down Stencil? Selective Solder Paste Volume Increasing Solution

post on January 4, 2016

The trend in the electronics industry is toward smaller and smaller SMD components, with sizes such as 0402, 0201, and even 01005 becoming common (Note 1). Additionally, the pitch between pins on ICs has decreased to a fine pitch of … Continue reading →

Manufacture, SMT, Soldering     WorkingBear    Views (19,556)     comment (0)
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Jun17
Selectively/partial increase solder paste volume solutions

post on June 17, 2015

Why is it necessary to partially increase the solder paste volume in SMT soldering? To meet the demands of smaller and thinner electronic component designs, stencils are made as thin as possible to precisely control the tiny solder paste printed … Continue reading →

Manufacture, SMT, Soldering     WorkingBear    Views (7,736)     comment (0)
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Jun10
PCB rework: Selective solder mask removal by laser

post on June 10, 2015

As an engineer in the electronics manufacturing industry, have you ever encountered the need to rework a printed circuit board (PCB) to remove the solder mask? If so, how did you approach this problem? Traditionally, the solder mask is manually … Continue reading →

Manufacture, Quality     WorkingBear    Views (12,516)     comment (0)