New Chip Cooling Technology

According to Moore’s Law, the density of chips in microprocessors keep doubling every two years. With increased density and efficiency of current chips, the heat generated by these chips is also increasing. To cope with the enormous heat, new technologies are needed in the future for embedded chips, which produces far more heat than current microprocessors cool. This new technology at Purdue University that “micro-jets used for the deposit in tiny fluid channels have been developed. This technology is able to remove five times more heat than other experimental methods for high-performance chip cooling. Conventional computer chips generate a rule for about 100 watts per square centimeter. The chips are air conditioned with corrugated metal panels as a heat sink cooled and often a small fan on the CPU. Most liquid cooling techniques are limited to a cooling capacity of about 200 watts per square centimeter. But the new microjet technology is able to produce chips more than 1,000 watts of heat per square centimeter cool. With their help, maybe open new doors in the development of chip technology. This technology is a combination of two methods of cooling, micro jets and micro-channels, the so-called hybrid system. The micro also cools, because the liquid is supplied in the form of jets everywhere along each channel. It helps in any part of the chip to avoid overheating. The coolant is collected at both ends of the channels and circulated back through the system. The channels in the cooling system is narrower than one millimeter, or thousandth of a meter wide. They are formed on a chip and a metal plate. This metal plate has small holes through which coolant is pumped in microjets, and the liquid flows along channels to cool the chip. If the coolant is heated by the hot chip inside the channels, blisters, and it is a steam engine, a relaxation on cooling. This new technology uses a fluorocarbon as refrigerant. This is a circuit dielectric and not conduct electricity or cause a short. However hydrofluorocarbons refrigerants are not very efficient and the thermal conductivity is much lower than water. But they prevent electrical short circuits and the environment are better than other refrigerants. They have small effects of global warming and are not harmful to the ozone layer in the atmosphere of the Earth.