PGS(PGS(Pyrolytic Graphite Sheet) Graphite SheetPyrolytic Graphite...

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PGS( PGS( P P yrolytic yrolytic G G raphite raphite S S heet) Graphite Sheet heet) Graphite Sheet Panasonic Electronic Device Co.,Ltd Panasonic Electronic Device Hokkaido Co.,Ltd PGS Graphite Sheet PGS Graphite Sheet

Transcript of PGS(PGS(Pyrolytic Graphite Sheet) Graphite SheetPyrolytic Graphite...

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PGS(Pyrolytic Graphite Sheet) Graphite SheetPGS(PGS(PPyrolytic yrolytic GGraphite raphite SSheet) Graphite Sheetheet) Graphite Sheet

Panasonic Electronic Device Co.,Ltd

Panasonic Electronic Device Hokkaido Co.,Ltd

PGS Graphite SheetPGS Graphite Sheet

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PGS Graphite SheetPGS Graphite SheetPGS Graphite Sheet

c ax

is

a-b plane

3.354~3.356 ×10-8 cm

Characteristics Thickness Density

a-b planec axis

Electrical conductivity Tensile strength

Thermal conductivity

Specifications0.10±0.05 mm

1 g / cm3

600 to 800 W / (m・K)

Approx. 15 W / (m・K)

10000 S / cm

19.6 MPa

0 100 200 300 400 500 600 700 800

Coefficient of thermal conductivity (W/m・K)

Ordinary Graphite

Aiuminium

Pure copper (hard)

PGS Graphite Sheet

Comparison of thermal conductivity (a-b plane)

PGS (Pyrolytic Highly Oriented Graphite Sheet) is made of graphite with a structure thatis close to a single crystal. This is achieved by highly-oriented polymer film sheet, a processwhich has never been implemented before.PGS is a heat sink sheet with high thermal conductivity and high flexibility.

PGS Graphite SheetPGS Graphite Sheet

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22)Thermal)Thermal InterfaceInterface

The decrease in Thermal resistance and Thermal spread

11)Thermal)Thermal TransferTransfer

The conduction of thermal

Thermal spread

A B

BB

BB

Heat sink

Heat source(MPUs, PAs, graphics chips, etc.)

PGS Graphite sheet

PGS Graphite sheet

Heat source

PGS Graphite sheetHeat source

Package

Without PGS

Heat sink

Surface temperature of the package

PGS inserted

PGS Graphite sheetHeat sink

Package

Two functions of PGS Graphite SheetTwo functions of PGS Graphite SheetTwo functions of PGS Graphite Sheet

PGS Graphite SheetPGS Graphite Sheet

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Thermal Transfer (1)Thermal Transfer (1)Thermal Transfer (1)

Heater 10×10mm V=8V (12W)

PGS Cu  Al

size;18×180×0.1mm

PGSPGS  CuCu  AlAl

PGS Graphite SheetPGS Graphite Sheet

[ Heater ON ]

after 10 sec

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PGS Cu  Al

PGSPGS  CuCu  AlAl

Thermal Transfer (2)Thermal Transfer (2)Thermal Transfer (2)

Heater 10×10mm V=8V (12W)

size;18×180×0.1mm

PGS Graphite SheetPGS Graphite Sheet

[ Heater OFF ]

after 20 sec

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[ measuring method ]

Heater  P= 12W

Sample Size : 90×90×0.3mm

Heater Size :10×10mm

at 25℃

Aluminum Copper PGS Graphite Sheet

after 30 minutes

Thermal Transfer (3)Thermal Transfer (3)Thermal Transfer (3)

PGS Graphite SheetPGS Graphite Sheet

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22)Thermal)Thermal InterfaceInterface

The decrease in Thermal resistance and Thermal spread

11)Thermal)Thermal TransferTransfer

The conduction of thermal

Thermal spread

A B

BB

BB

Heat sink

Heat source(MPUs, PAs, graphics chips, etc.)

PGS Graphite sheet

PGS Graphite sheet

Heat source

PGS Graphite sheetHeat sourcePackage

Without PGS

Heat sink

Surface temperature of the package

PGS inserted

PGS Graphite sheetHeat sink

Package

Two functions of PGS Graphite SheetTwo functions of PGS Graphite SheetTwo functions of PGS Graphite Sheet

PGS Graphite SheetPGS Graphite Sheet

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0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0

Pressure(kg/cm2)

Therm

al re

sist

ance (

℃・c

m2/W

)

Ordinary Graphite

Phase change

Silicon GreaseLow resistance PGS

PGS Graphite Sheet

Silicon sheet

Thermal InterfaceThermal InterfaceThermal Interface

PGS Graphite SheetPGS Graphite Sheet

Transistor

Heat Radiator

Screw (M3)

SampleThermocouple

Measurement of thermal resistance at high pressure

Measuring ; Transistor methodThe sample is placed between the transistor andthe heat radiator.And voltage loaded to transistor under pressure.Then voltage loaded to transistor, with addingpressure by driving the screw.

The thermal resistance (R) is calculated fromtemperature difference between transistor (temperature t1) and radiator (temperature t2 ). -Specimen size ;S= 3.00 cm2

-Transistor ; MTO-3P(Shin Dengen)

calculating equation ; R=( t1- t2 ) x S / W (c cm2/W) -Radiator ; 100 x 40 x 22 mm -Wattage ; 0.341 V x 20 A = 6.82 W -Measuring temperature ; thermocouples

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PGS Graphite Sheet application developmentPGS Graphite Sheet application development

③ Acrylic adhesion attached type

100μm 200μm 300μm110μm

Standard sample

180×230 mm

115×180 mm

90×115 mm

Thickness

Structure

Features

Multilayered type

⑧ Silicon layeredDouble-sided type

Type PGS only

130μm

⑦ Silicon layered One-sided type

Silicon100μm

Acrylic double-sidedadhesive tape 30μm

Acrylicadhesive10μm

Silicon100μm

Part No. EYGS182310 EYGM121810SS EYGM121810SWEYGC091210CEYGA091210A

130μm

Separating paper

Conductiveadhesivetape30μm

⑥ Conductive adhesive tape attached type

EYGM091210CT

180℃400℃ 180℃80℃ 80℃Withstandtemperature

500~600 W/m・K

550~600 W/m・K

250~300 W/m・K

250~300 W/m・K

600~800 W/m・K

Thermalconductivity

80℃

500~600 W/m・K

• Usable up to 400°C

• Low thermal resistance

• Conductivity

• Insulation

• Strong adhesion

• Low thermal resistance

• Thin adhesive

• Conductivity

115×180 mm

90×115 mm

90×115 mm

110μm

Acrylic double-sidedadhesive tape 10μm

Separating paper

EYGA091210B

80℃

500~600 W/m・K

• Low thermal resistance

90×115 mm

Adhesive type

② Double-sided adhesive tape attached type

① Double-sided adhesive tape attached type

⑤ Polyimide tape attached type

130μm

90×115 mm

Polyimide tape 30μm

EYGA091210K

180℃

500~600 W/m・K

• High insulation

• High heat resistance

• High mechanical strength

④ Polyester tape attached type

130μm

90×115 mm

Polyester tape 30μm

PGS

EYGA091210P

80℃

500~600 W/m・K

• Insulation

• High mechanical strength

Insulation type

PGS PGS PGS PGSPGSPGSPGSPGS

• Cushioning properties

• One-side insulation

• Cushioning properties

• Both-side insulation

Separating paper

Separating paper

PGS Graphite SheetPGS Graphite Sheet

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Application examplesApplication examples

PGS Graphite SheetPGS Graphite Sheet

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DVD Drive (Reading&Writing)DVD Drive (Reading&Writing)

Each Graphite Sheet carries the heat generated  in the laser unit to the metal chassis.

Optical Pick -UpOptical Pick -Up

PGSグラファイトシート (TYPE : EYGA *** )PGS Graphite Sheet

3×8 mm

5×20 mm

1. Optical Pick-Up for DVD1. 1. Optical Pick-Up for DVDOptical Pick-Up for DVD

Metal Chassis

Attaching PGS Graphite Sheet

Laser Unit(contains Laser Diodeand Control IC)

Heat Release from LaserHeat Release from LaserDiode and Control ICDiode and Control IC

Attaching PGS Graphite Sheet

PGS Graphite SheetPGS Graphite Sheet

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【Cross Section 】

2. Mobile Phone2. 2. Mobile PhoneMobile Phone

CASE

PA(HeatSource)Circuit BoardCase

Graphite Sheet

The heat spot of the case can go down by Graphite sheet attached to the backside of the case.

The heat spot cool 8 or 9 C.

Isolator (Heat Source)

[ Non- graphite Sheet ] Small Size and

Light Weight Type

PGS Graphite Sheet

[  Non- graphite Sheet ] [ Graphite Sheet Attached ]

The Temp. on the outsidesurface of the case

Rise of 9.23deg

<Surface Temperature> :under the normal working (while calling)

Rise of 18.81deg

PGS Graphite SheetPGS Graphite Sheet

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Substrate

PlasmaTarget

Backing plate

Cooling platePGS Graphite Sheet

3. Semiconductor manufacturing equipment3. Semiconductor manufacturing equipment

Sputtering

[ Target temperature rise ]

PGS inserted

Without PGS  

after 2.5hours after 5.0hours90 degrees Celsius or higher 65 to 70 degrees Celsius  

PGS Graphite SheetPGS Graphite Sheet

PGS can efficiently cool sputtering targets. It can be easily replaced and reused.

90 degrees Celsius or higher 70 to 75 degrees Celsius