Thermal Glue

[planters]

Are there any electrically non conductive, but thermally conductive adhesives that could be applied as a small dollop to the back of a "perfect fit" as opposed to a press fit diode/module combination that might simplify a multiple diode set up? Has anyone tried this with any success?

[laser_freak]

I use Arctic Alumina Thermal Adhesive as a thermal glue.

I have never tried it on a perfect fit diode module, but I often use it for TECs

[lasersbee]

Either that or Arctic Silver....
But remember that it will make a permanent bond..

Jerry

[planters]

I thought Arctic Silver contained metalic particles. Is this product electrically conductive? A permanent bond is desirable in that I wont be removing a diode unless its dead and then well nothing is really permanent.

[lasersbee]

I thought Arctic Silver contained metalic particles. Is this product electrically conductive? A permanent bond is desirable in that I wont be removing a diode unless its dead and then well nothing is really permanent.

Yes it contains silver for Heat transfer but is non conductive once
cured.
It is what we use to bond the Sensor onto the Heat Sink of our
LaserBee Thermopile Sensors.


Jerry

[goninanbl00d]

Yes it contains silver for Heat transfer but is non conductive once
cured.
It is what we use to bond the Sensor onto the Heat Sink of our
LaserBee Thermopile Sensors.


Jerry

Arctic Silver 5 (the compound) is non-adhesive, non-conductive, and slighty capacitiative. Watch the last bit- that could cause issues, especially at high-frequency modulation.

Arctic Silver Epoxy is the adhesive. This is non-conductive, but adhesive, and works like normal 2-part epoxy.

Be careful not to get the two mixed up, using AS5 as adhesive is bad, while using AS Epoxy on a CPU is a recipe for disaster.

[lasersbee]

Arctic Silver 5 (the compound) is non-adhesive, non-conductive, and slighty capacitiative. Watch the last bit- that could cause issues, especially at high-frequency modulation.

Arctic Silver Epoxy is the adhesive. This is non-conductive, but adhesive, and works like normal 2-part epoxy.

Be careful not to get the two mixed up, using AS5 as adhesive is bad, while using AS Epoxy on a CPU is a recipe for disaster.

Sorry.. My Bad....

I should have included the word "Epoxy" behind my "Arctic Silver"
in my above post...
We just say Arctic Silver or Arctic Aluminum in the shop to differentiate
the two types of Epoxy we use...
We don't use any Arctic Thermal paste here... but no-one would know
that...LOL


Jerry

[dnar]

Arctic Silver 5 (the compound) is non-adhesive, non-conductive, and slighty capacitiative. Watch the last bit- that could cause issues, especially at high-frequency modulation.

Arctic Silver Epoxy is the adhesive. This is non-conductive, but adhesive, and works like normal 2-part epoxy.

Be careful not to get the two mixed up, using AS5 as adhesive is bad, while using AS Epoxy on a CPU is a recipe for disaster.

Just a comment re the slightly capacitive AS5. The amount of C is small, and certainly in-significant (by many orders of magnitude) concern with the low impedance current-drive-application of an LD application.