Liquid Gap Fillers

What are Liquid Gap Fillers?

Liquid Gap fillers are thermally conductive gap filling materials used to enhance thermal transfer between an electronic component generating heat such as integrated circuits or transistors and a mechanical component carrying the heat to the exterior such as a heatsink.

How do Liquid Gap Fillers Work?

The liquid material is filling the gap between the hot component and the heatsink by flowing between the two components and making sure no air or void will remain between them.

Other Types of Thermal Fillers

Another common type of thermal filler are thermal gap pads. They are made of similar materials as liquid gap filler and provide similar benefits. They differ by two major points: gap pad are solid pads which are placed manually or with a robot onto the components; and liquid gap fillers are more like a putty which is being dispensed automatically thanks to a specific dispensing equipment onto the components.

Common Applications for Gap Fillers

Liquid gap fillers are commonly used in telecom, and datacom automotive automated driving systems; in principle in applications where a large number of components need to be produced as the dispensing technology is best suited for high-volume production.

 Benefits of Laird’s Liquid Gap Fillers

These materials can be dispensed to fill large and uneven gaps in assemblies due to their super compliant nature; little to no pressure is transferred between interfaces. Laird’s dispensing product portfolio includes both one and two-part materials, as well as products specifically designed for vertical stability and consistent dispensing.

Download our Thermal Interface Solutions brochure.

In 2019 we launched fully automated application capabilities for thermal pads and dispensables. You can end manual tasks through automation.

See the short video.