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Aluminium nitride ceramic substrates (AlN)

Aluminium nitride ceramic substrates (AlN)

The main advantage of substrates made on the basis of aluminum nitride (AlN) is the high thermal conductivity, varying in the range from 170 to 230 W/m*K. That is why AlN-based ceramics are used in cases where it is necessary to remove significant amounts of heat generated, for example, in cases where operating currents are units, tens of amperes. Also, AlN has a high purity of structure and chemical uniformity, which directly affects the uniformity of properties. Aluminum nitride is highly inert to the effects of almost all types of acids (with the exception of hot mineral species).
The products are made of ceramics based on aluminum nitride AlN according to the technical specifications 23.43.10.110-002-34576770-2016- DAYS.

Specifications

Properties		Materials
Properties		AlN-170	AlN-200	AlN-230
Colour		gray	gray	brown
Bulk density	г/см3	≥ 3,20	≥ 3,20	≥ 3,30
Surface roughness Ra (grinding)	мкм	0,2 ~ 0,7	0,2 ~ 0,7	0,3
Surface roughness Ra (polished)	мкм	≤ 0,05	≤ 0,05	≤ 0,05
Механические характеристики
Flexural strength	МПа	≥ 380	≥ 380	≥ 350
Compressive strength	МПа	-	-	-
Elastic modulus	ГПа	320	320	320
Vickers Hardness	ГПа	11	11	11
Fracture toughness	Мпа*м^0,5	-	-	2,4
Physical properties
Coefficient of thermal expansion (40-300°C)	10 -6 /°C	2,0 ~ 3,0	2,0 ~ 3,0	4,6
Coefficient of thermal expansion (300-800 С)		2,5 ~ 3,5	2,0 ~ 3,0	5,2
Thermal conductivity (25°C)	Вт/м∙°K	≥ 170	≥ 200	≥ 230
Specific heat capacity	Дж/Кг∙°К	720	720	720
Dielectric strength		≥ 17		≥ 15
Volumetric resistance(25 С)		≥ 1013	≥ 1013	≥ 1013
Dielectric constant (1 МГц)	-	8 ~ 10	8 ~ 10	8,5
Dielectric losses(1МГц, 25°C)	∙10 -4	2	2	3
Sizes
Distance between scribing lines, мм		1±0,05	1±0,05	1±0,05
Minimum hole diameter, мм		0,1±0,05	0,1±0,05	0,2±0,05
Thickness, мм		0,385 ~ 1,500	0,385 ~ 1,500	0,25 ~ 1,00
Thickness tolerance (min), мм		± 0,03	± 0,03	±10%, не менее ±0,04 мм
Dimensions (max), мм		127 x 127	127 x 127	177,8 x 127
Dimensional tolerance (min), мм		(+0,15 / -0,05)	(+0,15 / -0,05)	±1%, не менее ±0,1 мм
Technological properties
DBC technology				-
Thick-film technology
Thin-film technology

Application area

Ceramics made on the basis of aluminum nitride ALN has a fairly wide range of applications and will allow you to effectively solve problems, regardless of the level of complexity:

a blank for ceramic printed circuit boards that require high reliability indicators;
manufacturing of substrates for semiconductors;
as a heat-absorbing element in LED circuits and high-power electronic devices;
base for high-frequency resistors and as enclosures for various circuits;
substrate for laser diodes, semiconductor crystals;
for the manufacture of sensors and other devices operated in the most difficult conditions, etc.

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Categories	Alumina Ceramic Parts
Brand Name:	ZG
Model Number:	MS
Certification:	CE
Place of Origin:	China
MOQ:	1 PC
Price:	10USD/PC
Payment Terms:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:	1000 PCS
Delivery Time:	5-8 work days
Packaging Details:	Strong wooden box for Global shipping