Air Cooled Heatsinks - Fabricated Heatsink Assembly - Mixed Metal Heatsinks

Overview

When our all aluminum high performance heatsinks cannot meet the operational performance required and liquid cooling is not an option, it is time to try our mixed metal solution. Weight is a cost driver and a heatsink design that incorporates an aluminum baseplate & copper fins or mixed copper and aluminum fins, provides the highest performance at the lowest cost.

Our unique Fabfin swaging process proven over many years to eliminate the baseplate/fin interface barrier is ideally suited to the mixed metal design. Through modeling, experimentation and application knowledge we have overcome the issues relating to coefficient of expansion & electrolysis, allowing us to optimize mixed metal performance.

The combination Fabfin heatsinks are available with copper baseplates for concentrated heat sources and aluminum baseplates with copper fins for large area heat sources. Optimization is possible by mixing both aluminum and copper fins.

The mixed metal heatsink was developed to enhance heat spreading for those semi-conductors developing high heat flux and limited allowable temperature rise. The combination heatsink is offered with MF (3.43 mm) fin spacing and AF (5.49 mm) fin spacing as a standard configurable assembly. However, we do supply copper baseplates with DF (6.86 mm) spacing using a Hollowfin which effectively provides MF fin spacing of 3.43 mm with fins up to 118 mm high. No glue is used in the process.

The images shown here represent a number of unique thermal solutions. Your requirements can be modeled and unique solutions found using the mixed metal option.

* CONTACT THE APPLICATIONS DEPARTMENT FOR MODELING ASSISTANCE.