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| Adopting SN100C for the tuners that have the largest share of the world market |
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Adapter (upper) and Tuner (bottom)uses "SN100C" |
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Samsung Electro-Mechanics is a leading manufacturer of a wide
range of electronic components in Korea. They supply many kinds of components
such as multi layered circuit boards (MLBs), chip components, devices for mobile
communication, computers, audios (pick-ups), videos, set top boxes and so. On
top of that, they have an approximately 22% share of the world market for
tuners. They were certified to ISO14001 in 1996, and pursue their environmental
policy seriously. They adopted lead-free solder in August 2000 for power components,
and aim to change all their products to lead-free including solder joints by
2004.
Mr.Sean Yoo, the manager of the material research laboratory at the Samsung
Electro-Mechanics R&D center, had started to research lead-free solder
in 1994. He developed a lead-free solder alloy and had patented it. Searching
the Internet for data on lead-free solders in the world he discovered the existence
of "SN100C" at the end of 2000. After evaluating the results
of a program of testing the properties and the reliability of SN100C he
decided to use this solder for the production of tuners and adapters in June
2002.
"Tin-silver-copper alloy has been widely identified as the main option for
wave soldering. However, taking into account the cost, the reliability of the
solder
joint and the patent situation,we chose SN100C for wave soldering", said
Mr.Yoo. "In commercial production, the reliability of a solder joint made
with SN100C is the same as that of a tin-lead solder joint. The productivity
of this alloy is greater than that of any other lead-free alloys. Someone has
said that fillet lift occurs when through hole boards are soldered with SN100C,
but that problem was solved by our manufacturing technology." he notes.
Their factories are being move overseas on a step-by-step basis, manufacturing
lines for products such as tuners having already been moved to China and Thailand. "The
lines at Tianjin, China will be started in 2003. We will also use SN100C on those
lines." |
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Interviewed by The Nikkan Kogyo Shimbun, Ltd. |
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![[CASE7]SAMSUNG ELECTRO-MECHANICS (KOREA)](images/voice07_title.gif){kind=small}
