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TPG Thermal Pyrolytic Graphite
TPG Thermal Pyrolytic Graphite
TPG (thermal pyrolytic graphite) is a unique form of pyrolytic graphite manufactured from thermal decomposition of hydrocarbon gas in a high temperature chemical vapor deposition reactor.
Advantage:
- Thermal conductivity to 4 times copper
- Lighter than aluminum
- Compatible with many encapsulating techniques
- Sizes from dies and packages to PWB’s
- Passive, high performance heat transfer
The high thermal conductivity of TPG comes from a crystal structure that usually requires capturing the TPG material in some structural member. Final products typically include encapsulations such as aluminum, copper, AlSiC and carbon fiber composite to solve thermal problems in such needs as are
- Heat spreaders in packages
- Thermal cores for PWB's
- Heat spreaders for improved performance of finned sinks
- Laser diode mounts
- Highly oriented crystals in a layered structure
- In-plane conductivity typically 1350 to 1700 watts/m-K
- Fully dense ceramic
- High c-direction modulus, contributing to improved section properties in composite structures
- Layered structure avoids brittle, catastrophic failure
- Easily machined, provided as plates or as final hapes
- Thickness ranges from less than 0.010" (0.25 mm) to over 0.200" (5 mm)
- Plate sizes up to 5" (125 mm) x 20" (500 mm)
- Special sizes can usually be provided upon request
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