ALN Aluminum nitride ceramic Substrate

Aluminum nitride ceramic             

 The aluminum nitride (AlN) ceramic has high thermal conductivity(5-10 times as the alumina ceramic), low dielectric constant and dissipation factor, good insulation and excellent mechanical properties, non-toxic, high thermal resistance, chemical resistance ,and the linear expansion coefficient is similar with Si,which is widely used in communication components, high power led, power electronic devices and other fields.Special spec products can be produced upon requests.(attached: Regular specification of AlN substrate and wafer)


Aln Alumina Ceramic Plate Substrate LED/PCB Substrate

Regular specification of AlN  Aluminum Nitride substrates and Aluminum Nitride wafer
Thickness(mm) L*W( mm)
0.385 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
0.5
0.635
1
Diameter(mm)
1  Φ16               Φ19               Φ20               Φ26 Φ30             Φ35               Φ40               Φ45 Φ50            Φ52 Φ60 Φ75 Φ80
1.2
1.5
2
2.5
PS:  Aluminum Nitride substrate ceramic substrate,Aluminum Nitride tube,Aluminum Nitride pipe,Aluminum Nitride rod,Aluminum Nitride crucibles,Aluminum Nitride ring,Aluminum Nitride plate,Aluminum Nitride disc,Aluminum Nitride parts etc.

Other dimension and thickness which not listed are available upon requests.


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


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