Heat Sink Fin Types

Types of heat sink active heat sink.

Heat sink fin types.

But it is more expensive than aluminum. For example a proper design would utilize a radial fin style when cooling a cylindrical shape as opposed to a flat straight fin heat sink. This utilizes power for cooling process. Some types of heat sinks such as bonded fin can be made of both materials.

A heat sink s fin style can significantly influence its ability to release thermal energy into the environment. 3 skived heat sinks. Radian s bga aluminum plate fin designs are high efficiency heatsink cooling products which are ideal for linear air flow environments. Bonded fin heat sinks generally offer moderate performance and come at a high cost.

A pin fin heat sink is a heat sink that has pins that extend from its base. These bga heat sink devices mount with ez snap mounting clips and or thermal tape to provide optimum cooling for various package sizes and airflow. Heat sinks categorized by use of water as clumsy as this category might sound it really just includes solid metal heat sinks assemblies heat sinks using two phase devices and pumped liquid heat sinks. These are frequently used for physically large applications that require sensible performance like electric welding and dc dc brick applications.

Heat sinks produced through this method are normally made from copper. When the heat sink does not utilize a fan it is passive heat sink. However fin style is generally subject to the shape of the heat generating component. The most common heat sink materials are aluminum alloy has one of the higher thermal conductivity values at 229 w mk but is mechanically soft.

Inverted fins cavities edit open cavities are defined as the regions formed between adjacent fins and stand for the essential promoters of nucleate boiling or condensation. One for the base and the other for the fins. Citation needed a second type of heat sink fin arrangement is the straight fin. These run the entire length of the heat sink.

These heat sinks offer high design flexibility and you can achieve high fin density. These are made by bonding individual fins of a metal to the base of a heat sink. Copper has around twice the thermal conductivity of aluminum and faster more efficient heat absorption. The pins can be cylindrical elliptical or square.

In most of computer processor a fan is attached just above the heat sink. Active heat sinks are used in liquid cooling system. When the heat sink utilizes fan hsf it is active heat sink.