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About Thermal Interface Materials

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The trend for smaller and more powerful electronics leads to increasingly complex thermal conductivity challenges for systems designers. Using thermal interface materials (TIMs), the heat from hot components can be transferred to a cold surface or cooling hardware by means of low thermal resistance and high thermal conductivity combinations.A variety of technologies and constructions ensure the most efficient thermal conductivity solution is available, whatever your thermal conductivity needs. Browse the different types of thermal interface material below, including tape, gap pad, phase change and electrically conductive thermal interface materials.

Thermal Gap Pads

Our range of thermal gap pads are designed to provide a heat transfer path between heat generating components and heat sinks, heat spreaders or other cooling devices. They are soft and conformable providing complete ‘wet out’ for optimum thermal transfer, as well as shock and vibration damping to minimize potential damage to components. Thermal gap pads are commonly used in applications including LED lighting, flat panel displays, mass storage devices, engine control units and wireless communications hardware.

Thermal gap pad characteristics:

  • Meet UL ratings 94VO or 94HB
  • Very low thermal resistance
  • High temperature resistance
  • Easy handling
  • Electrically insulating
  • Available in acrylic and silicone formulations
  • Available in a range of thicknesses, colours and thermal conductivity strengths
  • Available in sheets or custom die-cuts

Thermal Tapes

Thermally conductive tapes offer high performance heat dissipation; vital requirements for designing electronic devices where demand is for slimmer and more powerful features. Thermally conductive tapes offer a clean alternative to pastes and liquid adhesives and can be die-cut to bespoke designs, providing efficiency of application and reducing assembly times. Our thermally conductive tapes are suitable for applications requiring thin bonding as well as those requiring gap filling and vibration absorption. These needs can be met with tapes, as well as thermally conductive foams, gap pads and putties. Double coated and transfer thermally conductive tapes are available in a variety of thicknesses, providing immediate bonding of heat sinks and an efficient, long-term and reliable thermal management solution. We offer an extensive range of thermally conductive products from world leading manufacturers. Click on the products tab for more information.

Thermally conductive tape characteristics:

  • High temperature adhesion and thermal conductivity
  • High mechanical strength in high temperature environments
  • Easy to apply
  • Flame retardant
  • Excellent long term reliability
  • Electrical insulation properties
  • Excellent shock performance and vibration damping
  • Highly conformable providing excellent wet-out on many surface conditions
  • For indoor and outdoor conditions

Our applications include:

  • LED lighting
  • Flex circuit and power transformer bonding
  • Bonding heat sinks
  • Power transistors
  • Integrated circuit packaging
  • Battery thermal management
  • Plasma displays

Thermally Conductive Insulator Materials

Our range of thermally conductive insulators are designed to solve over heating issues such as lower component efficiency, premature component failures, size limitations and other performance problems for today’s high power electronics. The film-based electrical insulator pads are available in a range of thicknesses, colours and tensile strengths to suit a variety of needs. The thermally conductive electrical insulator range is designed for the needs of consumer electronics, network infrastructure, automotive and industrial markets, for applications such as audio systems, home appliances, electrical power generators, telecommunications, automotive control units and stamped aluminium heat sinks.

Thermally conductive insulator characteristics:

  • Standard and custom options are available
  • Resistant to tears and cut-through
  • High dielectric strength
  • UL94 VO rated options available
  • Pads do not dry out, crack or fail when pressed between mating parts, eliminating burrs as a problem

Phase Change Thermal Interface Materials

Our range of high performance phase change thermal interface materials are designed to meet the thermal and reliability requirements of today’s electronics. Phase change thermal materials are solid pads at room temperature. At temperatures above their transition temperature, they begin to soften and flow, filling the microscopic irregularities of the components it contacts. The result is an interface with minimal thermal contact resistance. Due to the gradual change in viscosity (softening), migration (pump out) is minimized. They provide superior surface wetting, minimum bondline thickness and actively expel entrapped air. Phase change materials are used in a variety of applications, including microprocessors, power components and modules and chip sets.

Phase change thermal interface material characteristics:

  • Range of thicknesses
  • Meet all environmental requirements including RoHS
  • Stable and reliable performance
  • Easy to handle and apply
  • Available as die-cut parts in rolls or sheets with or without tabbed liners for easy application
  • Reusable options are available, ideal where multiple tests are required with the same thermal solution

Electrically Conductive Thermal Interface Materials

Our electrically conductive materials offer a high performance and cost effective thermal management solution where electrical conductivity is a requirement. They consist of 98% graphite composite with a unique grain-oriented, plate-like structure, for conformity to surfaces, maximising heat transfer.

Material characteristics:

  • Low thermal resistance
  • Available in a range of thicknesses
  • High thermal conductivity
  • Available in roll, sheet or die-cut form
  • UL94VO flammability rating
  • Available with a thin adhesive on one side

Thermally Conductive Grease

Designed to cool the most demanding electronics applications, thermally conductive grease provides high thermal conductivities, minimum bondline thicknesses and superior surface wetting.

Used in applications such as graphics chips, computers, semiconductor cases and heat sinks, these thermal greases do not dry out or pump out and remain stable through all industry standard reliability testing.

Thermally conductive grease characteristics:

  • Easy to apply and can be used in automatic dispensing
  • Low thermal resistance over a wide range of pressures
  • Non-silicone options available
  • Meets environmental regulations including RoHS