Graphite Sheet

Graphite sheet

Designed for mid power electronic device applications, TCGS-100 and TCGS-220 series are graphite-based thermal interface material with excellent thermal performance in both horizontal and vertical planes which enhances the efficiency of heat dissipating from the original heat source. The soft and highly flexible properties allow higher conformity between two surfaces. This high-performance material has low mass with ultra-thin and light weight configurations. This material is also customizable into different shapes and sizes based on application requirements. This thermally diffusive material is commonly used in handheld devices to avoid hotspots by extracting heat (generated from electronic devices) evenly over a large surface area, acting as a super lightweight heatsink.

Graphite sheets & films

Graphite pads & films were formed from graphite, an isotope of purely carbon which is organized in stacked sheets. We offer superior thermal conductivity on surface. Our precision conversion capability enables us to produce cleanly and reliably tailor graphite thermal interface material solutions. We have developed proprietary graphite envelope technologies incorporating the heat spreading performance of Graphite and protective film of an extreme thickness to reduce or eliminate corrosion. For sensitive applications graphite processing can be done in a cleanroom under classification 100, 1000 to 10,000.

What is graphite sheet?

Graphite sheet provides superb sealing properties for high temperature, high pressure transfer of gases, liquids, steam, chemicals and corrosives. In high purity high crystal natural graphite flakes are produced which are processed into constant foils under special acid and thermal treatments. Fuel cell companies use this material as a separator layer on solid wastes and gaseous wastes. The expanded graphite crystals are then deposited into foil in a calendaring process without any resins and binders.

What is reinforced graphite sheet?

The sheets are prepared by producing a fine-strength polymer graphite reinforced by electrostatic or non-electronic inserts. Inserting materials increase strength in high pressure installations and allow better handling. Insert material offers more strength and is used in many applications to provide gasket- and sealant-proof material. Inventors can add some extra material by placing a middle sheet to ease the process.
PGS protects electronic devices from heat through rapid thermal diffusion.
The combination of PGS and Graphite Sheets is an economical solution to various mechanical, thermal and optical problems.

Flexibility compressibility recovery properties

Graphite sheets have high stability and are very reliable against compressive stresses. Good matching with counter materials, which makes it ideal for sealing products. Excellent balance with counter materials making the product ideal for many applications.

Stable in the wide range of temperature

Graphite sheet has an excellent surface made of natural graphite with no binding agent. It maintains stable stability in the wide temperature range (-200°C3200C) allowing its use.
High stability (high grade carbon and high chemical stability): Environmentally resistant, durable
High heat conductivity and flexible make heat loss control feasible, – whilst also remaining lightweight and compact.
Thermal Management provides flexible graphite sheeting made using flake graphite with high content of graphite. These sheets offer excellent chemical thermal and mechanical resistance to be used in chemicals and gas systems. The gaskets consist of graphite after being processed with chemicals.

Features

  • Acts as a heat spreader with an excellent thermal conductivity in the horizontal XY-plane up to 1950 W/mK
  • Good flexibility & compression ratio
  • Environmentally friendly, does not contain any toxic ingredients
    Flexible and can be easily bent and trim to customized sizes
  • Thin and lightweight
  • Heat resistant up to 400°C
  • RoHS compliant

Areas of Application

  • Semiconductor device testing, e.g. CPU, GPU, MCM, etc
  • Mobile phones & PC tablets, PCs, Servers, and cloud storage
  • PDP, LED devices, IGBT Modules
  • Optical communications equipment, medical equipment

Specifications

DescriptionUnitTCGS-100 SpecificationsTest Method
Part Number-TCGS-100-28XXX-B*TCGS-100-25XXX-LTPSA*TCGS-100-20XXX-HTPSA*TCGS-100-20XXX-TSA*-
Type-BarePressure-Sensitive Adhesive (Low Tack)Pressure-Sensitive Adhesive (High Tack)Temperature-Sensitive Adhesive-
# of Sides Coated-NASingle / DoubleSingle / DoubleSingle / Double
Material-GraphiteGraphiteGraphiteGraphite-
Film Thicknessum200/350200/350200/350200/350ASTM D374
Operating Temperature-55~400-10~150-10~150-18~135ASTM D1329
Thermal Conductivity (X-Y)W/mK400/200350/150350/150350/150ASTM D5470
Thermal Conductivity (Z)W/mK28252020ASTM D5470
Densityg/cm³1.01.01.01.0ASTM D792
Flexible StrengthMPa18.018.018.018.0ASTM D412
Flame RatingV-0V-0V-0V-0V-0UL 94
*For part number, XXX represents the thickness of material. For example, 200um thick will be 020 & 350um thick will be 035
DescriptionUnitTCGS-220 SpecificationsTest Method
Part Number-TCGS-220-28010-BTCGS-220-25010-LTPSATCGS-220-20010-HTPSATCGS-220-20010-TSA-
Type-BarePressure-Sensitive Adhesive (Low Tack)Pressure-Sensitive Adhesive (High Tack)Temperature-Sensitive Adhesive-
# of Sides Coated-NASingle / DoubleSingle / DoubleSingle / Double
Material-GraphiteGraphiteGraphiteGraphite-
Film Thicknessum100110110110ASTM D374
Operating Temperature-50~400-10~150-10~150-18~135ASTM D1329
Thermal Conductivity (X-Y)W/mK700550550550ASTM D5470
Thermal Conductivity (Z)W/mK28252020ASTM D5470
Densityg/cm³1.01.01.01.0ASTM D792
Flexible StrengthMPa20202020ASTM D412
Flame RatingV-0V-0V-0V-1V-0UL 94

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