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Old 11-30-2011, 09:23 PM #1
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Default how do i use laser diode bare chips?

I was looking to build an array of infa red diodes, and came across this:

Laser Light Solutions Releases Turn-Key, 5-watt Blue Laser Diode System

it seems like magically amazing power for a small price, but it says its only bare chips. Does this make it far more difficult or impossible for a DIY laser? It was easy to use a diode because you just solder wires to the pins and put it in a module, but do bare chips require special treatment? Just looking for some guidence as to weather or not I should buy this


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Old 11-30-2011, 09:56 PM #2
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Default Re: how do i use laser diode bare chips?

You don't want bare chips unless you are a magician cuz you'll need to be to solder them to a header.
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Old 11-30-2011, 10:00 PM #3
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Default Re: how do i use laser diode bare chips?

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Originally Posted by Flaminpyro View Post
You don't want bare chips unless you are a magician cuz you'll need to be to solder them to a header.
Very true!

There is an interesting read here on the subject though....The title is the most telling.

.............."Soldering Grains of Sand".......................

http://www.die4laser.com/
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Old 11-30-2011, 10:30 PM #4
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Default Re: how do i use laser diode bare chips?

I have a bunch of 635nm 500mW dies, or something close at least. I planned on making a setup that simply clamped the die making the connections so no solder would be needed. After I got the dies and saw how small they are I never even tried. A grain of rice is monolithic compared to a laser die, even a relatively large multimode die.

It's possible to do as Robin has shown but it's not easy at all!
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Old 11-30-2011, 10:48 PM #5
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Default Re: how do i use laser diode bare chips?

well...

looks like that's not gonna happen
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Old 12-01-2011, 03:21 AM #6
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Default Re: how do i use laser diode bare chips?

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Originally Posted by Pontiacg5 View Post
I have a bunch of 635nm 500mW dies, or something close at least. I planned on making a setup that simply clamped the die making the connections so no solder would be needed. After I got the dies and saw how small they are I never even tried. A grain of rice is monolithic compared to a laser die, even a relatively large multimode die.

It's possible to do as Robin has shown but it's not easy at all!
Hehe, I'm betting those are from Chris?

I probably have.... 750 bare dies. I even have some obnoxiously large multimode IRs, that must be meant for like 20W, because they're larger than the emitters on the "7W" C-Mount diodes I have by many times.

In theory, if you could find some sort of solder paste that was incredibly low melting point, I think you could possibly utilize emitters by basically taking a reflow approach. But it's really not going to be easy.
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Old 12-01-2011, 03:42 AM #7
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Default Re: how do i use laser diode bare chips?

Quote:
Originally Posted by rhd View Post
In theory, if you could find some sort of solder paste that was incredibly low melting point, I think you could possibly utilize emitters by basically taking a reflow approach. But it's really not going to be easy.
That is the exact process Robin takes, a very closely monitored tec hotplate and indium solder that melts at something like 98c. I can't see it happening, too many places to mess up!
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Old 12-01-2011, 04:35 PM #8
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Default Re: how do i use laser diode bare chips?

you guys are wusses
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Old 12-01-2011, 05:15 PM #9
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Default Re: how do i use laser diode bare chips?

Scroll down about halfway down this page. The site author mounted a chip on his own...

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