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What happens to LPI Solder Mask on the RF4 PCB During Reflow?

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#54303

What happens to LPI Solder Mask on the RF4 PCB During Reflow? | 8 April, 2008

hi experts,

need more info on what's happening with the LPI Solder Mask on an FR4 PCB during reflow of both Leaded and Lead Free Process? Do they become soft as well while exposed to the extreme temperatures?

regards,

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#54305

What happens to LPI Solder Mask on the RF4 PCB During Reflow? | 8 April, 2008

Duno. Which LPI Solder Mask are you using?

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#54453

What happens to LPI Solder Mask on the RF4 PCB During Reflow? | 21 April, 2008

Hi dave,

sorry for my late reply...right now do not have info about the LPI and I'm not allowed to talk to our supplier without going through our sales people...sux!

cheers!

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#54454

What happens to LPI Solder Mask on the RF4 PCB During Reflow? | 21 April, 2008

Then how the hell do they expect you to set up your processes?

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#54499

What happens to LPI Solder Mask on the RF4 PCB During Reflow? | 25 April, 2008

Find out what the Tg of the LPI is. Below - rigid, above - flexible.

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