Category Archives: SMT


Jan05
Comparison between shielding-can directly mount and shielding-clip/frame

發表於 January 5, 2017

Recently one of my top manager ask to mount the shielding-can or call shielding-cover directly on the Printed Circuit Board to instead of mount the shielding-clip or call shielding-frame on the board first then cover the shieling-can. He said this … Continue reading →

Design, Manufacture, SMT     WorkingBear    Views (3,252)     comment (0)
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Apr07
Solution to the Drop of First-Side Part during the Second Reflow Soldering

發表於 April 7, 2016

First of all, with the rapid growth of mobile phone technology, the Electronic Manufacturing Service (EMS) in mainland China sometimes meet serious labor shortage. Second, the Industry 4.0 promotes the requirement of factory automation for each EMS. Therefore, many parts … Continue reading →

Design, Manufacture, SMT, Soldering     WorkingBear    Views (3,018)     comment (0)
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Mar09
Process Impact of Substituting SMD Parts with Paste-In-Hole Parts

發表於 March 9, 2016

Today, one question from my boss, “Is there any difference or influence on the process and design if we like to convert the SMD parts to DIP type and go through the PIH(Paste-In-Hole) process?” Later, I realized that the question … Continue reading →

Manufacture, SMT, Soldering     WorkingBear    Views (2,995)     comment (0)
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Feb01
Solder Preforms – Another Choice for Solder Volume Increasing Solution

發表於 February 1, 2016

Today, most of electronic parts 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 (3,627)     comment (0)
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Jan04
What is Step-up & Step-down Stencil? Selective Solder Paste Volume Increasing Solution

發表於 January 4, 2016

Today, the SMD parts become smaller and smaller. Their sizes can be developed to 0402, 0201, and even 01005 (Note 1). Moreover, the pitch between the pins of a common IC (integrated circuit) is shorten to fine pitch of 0.5mm, … Continue reading →

Manufacture, SMT, Soldering     WorkingBear    Views (7,862)     comment (0)
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