Heat Sink Fin Types

3 skived heat sinks.

Heat sink fin types.

These heat sinks offer high design flexibility and you can achieve high fin density. This utilizes power for cooling process. They are produced from a solid block of metal. Heat sinks produced through this method are normally made from copper.

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. The pins can be cylindrical elliptical or square. In most of computer processor a fan is attached just above the heat sink. Copper has around twice the thermal conductivity of aluminum and faster more efficient heat absorption.

One for the base and the other for the fins. 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. Types of heat sink active heat sink. 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 heat sink s fin style can significantly influence its ability to release thermal energy into the environment. Bonded fin heat sinks generally offer moderate performance and come at a high cost. A pin is one of the more common heat sink types available on the market. 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. When the heat sink utilizes fan hsf it is active heat sink. 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. Aluminium heat sink with high efficiency cooling fins.

Citation needed a second type of heat sink fin arrangement is the straight fin. When the heat sink does not utilize a fan it is passive heat sink. Some types of heat sinks such as bonded fin can be made of both materials. These run the entire length of the heat sink.

Active heat sinks are used in liquid cooling system. A pin fin heat sink is a heat sink that has pins that extend from its base. These are made by bonding individual fins of a metal to the base of a heat sink.