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Topic: How to measure chip (or other component) temperature? (Read 1 time) previous topic - next topic

JimboZA

This thread about an overheating 293 made me wonder how to measure the temp of a chip.

My Christmas Fluke 17B has a temperature scale (measures up to 400C) and came with a Type-K thermocouple. To measure the temperature of a chip, would it be enough to hold the thermocouple probe against the surface or does it need a better contact, perhaps with some gel or paste or other gloop to get a better contact?
Roy from ITCrowd: Have you tried turning it off an on again?
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bobthebanana

I guess regular old thermal grease would work. Thermal exopy if you want a permenent contact. But either way, thet will be package temp, not die temp. Maybe with a bit of math and the thermal conductivity figures in the datasheet it would be possiblr to get an accurate measurement

jonisonvespaa

hi bob
whats die temp, is that the core of the ic?
cheers

CrossRoads

We have a Ryobi Non-Contact Infrared Thermometer
http://www.homedepot.com/buy/electrical/electrical-test-meters/ryobi-non-contact-infrared-thermometer-ir001.html
Put its red laser dot on the middle of a chip, or a resistor, or transistor, get a digital reading back.

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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
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Msquare


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