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SMT Lead Free Line

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SMTA-June

#83892

SMT Lead Free Line | 5 December, 2019

Our Production facility wants to convert to Lead Free (SMT). Can anyone provide any guidelines and processes we need to review?

This message was posted via the Electronics Forum @ SMTASMTA

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#83903

SMT Lead Free Line | 6 December, 2019

Not going be accused of rushing into things, eh?

Tons of stuff on the web. For instance: https://www.pca.state.mn.us/sites/default/files/dfe-leadfreesolder.pdf

To me, the BIGGEST issue is process and material qualification that conforms to ISO9000, especially those dreaded "Special Processes."

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#83904

SMT Lead Free Line | 6 December, 2019

To me, the BIGGEST issue is
> process and material qualification that conforms
> to ISO9000, especially those dreaded
> "Special Processes."

Can you please expand on this? I'm quite curious as well

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#83908

SMT Lead Free Line | 8 December, 2019

I don't know, I just find process qualification a lot of paperwork to document.

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SMTA-June

#83917

SMT Lead Free Line | 10 December, 2019

Thank you!

This message was posted via the Electronics Forum @ SMTASMTA

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#83929

SMT Lead Free Line | 11 December, 2019

The one thing I haven't seen mentioned yet is developing the the control systems for the process equipment and materials.

You don't want to mix up your solder paste, bar, and wire, and you don't want to cross-contaminate by using equipment (soldering iron tips, for example, and even ESD mats) with leaded solder on lead-free product.

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#83930

SMT Lead Free Line | 11 December, 2019

From what I understand when ROHS was first implemented the EU planned on testing products. But the EU economy would have shut down if all the physically non-compliant products were pulled. And now it is more showing due diligence. Remember it is political not scientific. A microscopic amount of lead on an 0402 joint makes the whole assembly technically non-compliant. If they still sell Grecian formula for men then you would have to ban anyone from using it that works on the floor.

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#83932

SMT Lead Free Line | 11 December, 2019

"A microscopic amount of lead on an 0402 joint makes the whole assembly technically non-compliant"

I believe that if there is less than .1% Pb in all of the solder on the board then I believe that it still complies.

And as to the Grecian thing, only if you require people to rub the product on their head.

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#84030

SMT Lead Free Line | 26 December, 2019

Lead Free SMT 1. Stencil printer Squeegees s -should have Pb free pair 2. Reflow oven - should be able support Pb- free higher temperatures. 3. In case you have inspection table on the SMT line - should have Pb-free mats(usually different color)

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#84107

SMT Lead Free Line | 6 January, 2020

&gt; Our Production facility wants to convert to Lead <BR> &gt; Free (SMT). Can anyone provide any guidelines <BR> &gt; and processes we need to review? <BR> <BR> We are the professional manufacturer of SMT equipment and want to do the business with you if possible. Our companies JIDA and HTGD have been producing the SMT machines for many years, integrated Design, R&amp;D, Production, Sales and Technical Service. What products we manufactured are: SMT Printer/Stencil Printer/Solder Paste Printer, Pick and Place Machine, SPI/AOI, Reflow Oven, Wave Soldering, SMT Coating Machine, SMT Glue Dispenser, Insertion Machine, Tinning Machine, Laser Engraving Machine, Laser Solder Ball Jet Welding Machine, Loader/Unloader and Conveyor etc. On the other hand, we are the qualified agency of: HANWHA (SAMSUNG) Chip Mounter and Pick&amp;Place Machine, HELLER, PEMTRON, SAKI etc., and dedicated to provide the customers with professional and comprehensive one-stop solutions of the electronic assembly line. Would you like to buy our SMT machines? You’ll get a lot of profits from our business cooperation. Any inquiry would be appreciated by Mobile/WeChat: 0086 13063047785 or scan my WeChat QR code. Yours sincerely Wellman Rau (Mr.) Senior Manager International Business Dept. Mobile/Wechat: 0086 130 6304 7785 Email: <a class=roll href="mailto:sales84@jidasmt.com&quot;>sales84@jidasmt.com&amp;quot;>sales84@jidasmt.com&quot;>sales84@jidasmt.com </a> <a class=roll href="mailto:sales84@global-htgd.com&quot;>sales84@global-htgd.com&amp;quot;>sales84@global-htgd.com&quot;>sales84@global-htgd.com </a> Linkedin: <a class=roll href="http://www.linkedin.com/in/jida-wellman"" target="_blank">http://www.linkedin.com/in/jida-wellman" target="_blank">http://www.linkedin.com/in/jida-wellman" target="_blank">http://www.linkedin.com/in/jida-wellman </a>JIDA: <a class=roll href="http://en.samsungctw.com/"" target="_blank">http://en.samsungctw.com/" target="_blank">http://en.samsungctw.com/" target="_blank">http://en.samsungctw.com/ </a> HTGD: <a class=roll href="http://www.sz-htgd.com/en/"" target="_blank">http://www.sz-htgd.com/en/" target="_blank">http://www.sz-htgd.com/en/" target="_blank">http://www.sz-htgd.com/en/ </a>

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#84113

SMT Lead Free Line | 6 January, 2020

It is not all of the product. It is per separable homogeneous material. A 0402 coil could be broken into at least a half dozen pieces and each piece is separate. Look at the size of a single 0402 joint. How much lead would 0.1% be? Not much. A customer once asked for ROHS before they needed it and found a single 0805 joint that was not compliant. That would make the entire assembly not compliant. Remember ROHS is political not scientific.

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Reflow Oven

Conformal Coating Machine under 40000