Soldering to glass

Piotr Wyderski · 2020-04-19T08:30:31+00:00

I have recently conducted some research on binding SMD components with glass and ceramic substrates using pure indium and indium alloys. The results are very satisfactory, and the technique may find some applications in HV and high power density solutions. One can directly solder a MOSFET to a ceramic heatsink or a string of HV resistors to an insulating glass plate without prior metalisation. The only thing to improve is the initial wettability. Do you happen to know of any tips regarding the composition of the alloy or the preparation of the substrate? Will indium bind to AlN? I have no sample to perform a test. Best regards, Piotr

Apr 19, 2020 22 Replies

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legg 6 years ago

Glass is not always glass, but it's better than dirt.

I think this guy's a brit?

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Phil Hobbs 6 years ago

"Item location: China"

Cheers

Phil Hobbs

Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com

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jlarkin 6 years ago

We have used these resistors

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in an application where high-power cycling broke wirewounds.

It's porcelain on thin steel. It comes cupped a bit, so when you screw it down it hugs the heat sink.

John Larkin Highland Technology, Inc Science teaches us to doubt. Claude Bernard

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