Do you know when the heat sink industry began? In fact, heat sink comes into being in China as early as the middle of the last century, but the then heatsinks are used in industries. Area of heatsink chipset is developed with the development of the PC industry, and unknowingly developed into today. Intel 4004 microprocessor can be traced back to the first one, above Fengyun 8008 processor is the follow-up work after derivative. We are familiar with the 8080, 8086, DIY friends of the 80 generation should have heard of them. After that that is the 80286, 386, 486, we know that era computer is named after the CPU model, when the primary school enrollment school computer is 386. That chip computing power of that era is very low, so there is no need to use quiet cpu cooler.
Heatsink and Multimedia
From the late eighties to the early nineties, the Intel CISC architecture of the 80486 processor entered into the market, and that is in fact the i486. The great breakthrough in the structure of this processor, it integrated 1.2 million transistors, clock frequency increased gradually from 25MHz to 50MHz. Intel 486 dx2 overdrive on the application of cooling technology, but when the heat is not an exaggeration, so the heatsink chipset is also very simple, a metal thin metal patch can be solved using the natural circulation of air. Intel Pentium family of processors have been widely introduced into the cooling concept, in order to ensure the cooling needs without increasing processor burden, made of heat sink scattering "comb" the middle just to install a fan. The basic concept of the modern air-cooled heat sink has come into being.
Copper and Aluminum Become Last Winners of Heatsink
The material composition of heat sinks on the market is most copper and aluminum. In the past, when these two materials are not yet finalized by people, they had many attempts, among which contains a variety of alloys, and some even produced a super heatsink contains a lot of metallic silver. And from the metallic properties point of view, silver is the best material in the heat both copper and efficient conduction characteristics, both aluminum storage hot and divergence. But Silver heat sink simply cannot be mass-produced, the price is too high. The ultimate success of the "survival" down the material is copper and aluminum, and of course, they are not pure metal, they are carried out of the alloy of the anti-oxidation treatment. Compared to other metals, the two materials have more price advantages, and the high yield material supply is security.
The article is come from:http://equipment.china-foodmachine.com/quiet-cpu-cooler/development-course-of-chipset-heat-sink.htm