Thermal Management Materials by Santier

Santier, Inc., formally Plansee TMS, is a center of excellence for the engineering and manufacture of high thermal conductivity, controlled expansion metal matrix composites for microelectronic housings and assemblies, specialising in copper tungsten (CuW) and copper molybdenum (CuMo).

Other materials include Super CMC (S-CuMoCu) and copper graphite (Cu-Gr). Fully vertical manufacturing also provides assembly and plating, integrating the custom thermal management materials into hermetic IC packaging and microelectronic housings. Product applications include aerospace, defense, medical, telecoms and communications, plus many other industries around the world.

As the world leader in the manufacture of CuW, CuMo, and other metal matrix composites for thermal management applications i.e. high power semiconductor heatsinks etc., Santier utilises state-of-the-art powder metal technology. Santier maintains uncompromising dedication to continuous improvement in its engineered materials. Constantly-monitored criteria include composition, analysis of trace elements, particle distribution, grain size, tap density and flow characteristics.

Santier is certified to ISO 9001:2015 and AS9100D.


Further Information

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Tel: +44 (0)1264 334505



Die Bonding Sub-Mounts, Heat Dissipation / Heatsinks, Thermal Interface, Microwave Carriers, LDMOS, Power and Bi-Polar RF Transistor Packages, Laser Diode Substrates, Mounts and Blocks, RF Transistor Flanges and Bases, Seal Frames, Hermetic Packages & Enclosures, High Speed Digital Packages

Industry Segments

Wireless, Internet Infrastructure, Military, Aerospace, Industrial, Telecommunications, Fibre Optics / Photonic Assembly, Microwave Electronics, Microelectronics, Power Semiconductor Assembly, Semiconductor Back-end Assembly etc.

Santier Website


Available from Inseto in the United Kingdom, Ireland & Nordic Region

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