Heat Sink Fin Types

3 skived heat sinks.

Heat sink fin types.

Bonded fin heat sinks generally offer moderate performance and come at a high cost. However fin style is generally subject to the shape of the heat generating component. This utilizes power for cooling process. They are produced from a solid block of metal.

Types of heat sink active heat sink. When the heat sink does not utilize a fan it is passive heat sink. A pin fin heat sink is a heat sink that has pins that extend from its base. 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.

Copper has around twice the thermal conductivity of aluminum and faster more efficient heat absorption. Radian s bga aluminum plate fin designs are high efficiency heatsink cooling products which are ideal for linear air flow environments. These are made by bonding individual fins of a metal to the base of a heat sink. These run the entire length of the heat sink.

But it is more expensive than aluminum. One for the base and the other for the fins. Some types of heat sinks such as bonded fin can be made of both materials. The pins can be cylindrical elliptical or square.

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. A pin is one of the more common heat sink types available on the market. When the heat sink utilizes fan hsf it is active heat sink. Aluminium heat sink with high efficiency cooling fins.

These heat sinks offer high design flexibility and you can achieve high fin density. 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. Active heat sinks are used in liquid cooling system. 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.

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. In most of computer processor a fan is attached just above the heat sink. A heat sink s fin style can significantly influence its ability to release thermal energy into the environment.