Name: Borosilicate glass substrates (SiO2-B2O3)
SKU: OCTO-BORBS-1
Price: 59.50 EUR
Availability: InStock

Borosilicate glass substrates (SiO2-B2O3)

€59.50

Borosilicate glass substrates have better thermal shock resistance, high material strength, and strong chemical stability while keeping >90% transmissivity in the visible light spectrum.

We currently store 100mmx100mx2mm substrates. For other sizes and thicknesses or high volume demands, please contact us.

Borosilicate glass is chemically resistant, has a low thermal expansion coefficient, and can be used at relatively high temperatures.

Its main benefits are:

very high chemical resistance
high operating temperature
Minimale thermal expansion (3.3 ppm/C)
High thermal shock resistance

The typical composition contains SiO2 (approx. 80 %), 13 % B2O3 and others (Na2O / K2O, Al2O3)

Our Borosicilate substrates come in a 100mmx100mm square format. We currently stock 2mm thick plates but other thicknesses are available on request. Please contact us.

Borosilicate properties

Property	Items	Unit	SiO2 (approx. 80 %), B2O3
Physical / Optical	Color	-	Transparent
	Material - SiO2	%	~80%
	Water absorption	%	0
	Optical Transmission @ wavelength	-	>90% @ 310 tot 2200 nm
	Refractive Index	n	1.47
Electrical	Dielectric Constant	e	4.6
	Dielectric Loss		3.7
	Dielectric strength	MV/m or KV/mm	30
Mechanical	Density after Sintering (Bulk density)	g/cm3	2,23
	Flexural Strength (Bending)	Mpa	120-160
	Young’s Modulus	Gpa	~63
	Poissons ratio		0.2
Thermal	Coefficient of Thermal Expansion (CTE)	ppm/°C	～3,3
	Transformation (Tg)	°C	525
	Thermal Conductivity (25°C)	W/m‧K	～1.4

The data shown is typical of commercially available material and is only offered for comparative purposes. The information shall not be interpreted as absolute material properties nor does it constitute a representation or warranty for which we assume legal liability. User shall determine the suitability of the material for the intended use and assumes all risk and liability whatsoever in connection therewith.

If your are not sure what conductor and surface finish you should use, you can always use this handy tool: What stackup to use for your signal layers for ceramic pcb.

Dimensions

N/A

Size

100x100mm / 3.9"x3.9"

Thickness

2mm / 0.079"

Borosilicate glass substrates (SiO2-B2O3)

Description

If your are not sure what conductor and surface finish you should use, you can always use this handy tool: What stackup to use for your signal layers for ceramic pcb.

Additional information

Borosilicate glass substrates (SiO2-B2O3)

Description

If your are not sure what conductor and surface finish you should use, you can always use this handy tool: What stackup to use for your signal layers for ceramic pcb.

Additional information

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