- Nov 27, 2016
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- 1,510
I decided to replace the thermal pads on my Dell Mini laptop since I had taken it apart a few times, and probably contaminated the surfaces in the process. I bought some 1.0mm and 1.5mm sheets to use, and you have to cut them to size of course.
My main question is, how much surface area of the chip should you cover with the pad? What I have is a chip about 30mmX30mm with a 5mmX5mm silicon area in the center. There is no metal heatsink over the chip itself, just the little polished silicon square in the center of the chip (the "core" I am guessing). If I was using arctic silver compound, I would know to only cover that little square, but with thermal pads, should you make them larger?
The original pads were a little larger and covered a little bit more of the chip... I am wondering, for the best thermal conductivity, should I cut them down to just the size of that little silicon square, or go larger and make it cover a little bit more of the chip?
My thinking is that it is best to only cover that small area, even though the pad would be smaller than the original.
My main question is, how much surface area of the chip should you cover with the pad? What I have is a chip about 30mmX30mm with a 5mmX5mm silicon area in the center. There is no metal heatsink over the chip itself, just the little polished silicon square in the center of the chip (the "core" I am guessing). If I was using arctic silver compound, I would know to only cover that little square, but with thermal pads, should you make them larger?
The original pads were a little larger and covered a little bit more of the chip... I am wondering, for the best thermal conductivity, should I cut them down to just the size of that little silicon square, or go larger and make it cover a little bit more of the chip?
My thinking is that it is best to only cover that small area, even though the pad would be smaller than the original.
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