Aluminum Nitride Substrates

Aluminum Nitride Substrates

Product

Alumina Ceramics-T
Alumina Ceramics

Alumina Ceramic Tube

Alumina Ceramic Rod

Alumina Ceramic Substrates

Alumina Ceramic Disc

Alumina Ceramic Plate

Alumina Ceramic Roller

Alumina Ceramic Crucible

Alumina Ceramic Ring

Alumina Ceramic Part

Silicon Carbide Ceramics

RBSiC

SSiC

R-SiC

Aluminum Nitride Ceramics

Aluminum Nitride Substrates

Aluminum Nitride Tube

Aluminum Nitride Plate

Aluminum Nitride Disc

Aluminum Nitride Part

Boron Nitride Ceramics (BN)

Boron Nitride Tube

Boron Nitride Plate

Boron Nitride Ring

Boron Nitride Nozzle

Boron Nitride Crucible

Boron Nitride Part

Polishing AlN ceramic substrate

AlN ceramic has following properties

  • High thermal conductivity (theoretic value 320W/m.K)
  • High electricity resistance
  • Low coefficient of heat expansion(4.5X10-6ºC)Good march with Si(3.5~4×10-6ºC) and GaAs(6×10-6ºC) 
  • Excellent electricity properties(Dielectric constant, dielectric loss, bulk resistivity, dielectric strength). 
  • Good mechanic properties 
  • Excellent corrosion resistance 
  • Good optical transmission propertyAlN ceramic has become an ideal material for heat radiation and package in industries of large
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Product Description
Property Index of ALN  Aluminum Nitride ceramics
Property Sort Characteristic Unit AN170 AN200 AN220
Basic Properties Appearance/color Gray Gray Beige
Water absorption % 0 0 0
Volume density g/cm3 ≥3.30 ≥3.30 ≥3.26
Surface roughness Ra μm 0.1~0.6 0.1~0.6 0.1~0.6
Camber (length ‰) ≤2‰ ≤2‰ ≤2‰
Thermal Properties Thermal conductivity  (20-30℃) W/m.k ≥170 ≥200 ≥220
Coefficient of
Thermal expansivity (20℃~300℃)
×10-6/℃ 4.4 4.6 4.5
Coefficient of
Thermal expansivity(40℃~800℃)
×10-6/℃ 5.2 5.2 5.2
Mechanical Properties Flexural/Bending strength MPa ≥420 ≥300 ≥200
Modulus of elasticity GPa 320 310 310
Moh''s hardness - 8 8 8
Electrical properties Dielectric constant  (1MHz 25℃) - 8.9 8.6 8.5
(1MHz 25℃) Dielectric loss ×10-4 2.8 2 2
Dielectric strength KV/mm ≥17 ≥16 ≥15
Volume resistivity Ω.cm ≥1014 ≥1014 ≥1013

 

Regular specification of AlN  Aluminum Nitride substrates/plate and Aluminum Nitride wafer
Thickness(mm) L*W( mm)
0.381

2″* 2″                            50.8mm*50.8mm

3″*3″                         76.2mm*76.2mm 4″* 4″           101.6mm*101.6mm 4.5″* 4.5″         114.3mm*114.3mm 127*127mm
138*190mm
0.5
0.635
1
1.5
Thickness(mm) Diameter(mm)
1

Φ16

Φ19

Φ20

Φ26

Φ30

Φ35

Φ40

Φ45

Φ50

Φ52

Φ60 Φ75 Φ80 Φ200
1.2
1.5
2
2.5
3
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Other dimension and thickness which not listed are available upon requests.