Si3N4 Silicon Nitride Ceramic substrate

You can rest assured to buy Torbo® Si3N4 Silicon Nitride Ceramic substrate from our factory and we will offer you the best after-sale service and timely delivery. Silicon nitride (Si3N4) is a ceramic compound composed of silicon and nitrogen atoms, characterized by mechanical, thermal and electrical properties. Silicon nitride has a high melting point and can withstand extreme temperatures, making it suitable for applications involving heat or high-temperature environments. Silicon nitride is known for its high mechanical strength and fracture resistance. This property is invaluable for maintaining structural integrity in a variety of applications. Silicon nitride is an excellent electrical insulator. It does not conduct electricity, which makes it useful in applications where electrical isolation is required.

The Torbo® Silicon Nitride Substrates

Item:Silicon nitride substrate

Material:Si3N4

Color:Gray

Thickness:0.25-1mm

Surface processing:Double polished

Bulk density: 3.24g/㎤

Surface roughness Ra: 0.4μm

Bending strength: (3-point method):600-1000Mpa

Modulus of elasticity:310Gpa

Fracture toughness(IF method):6.5 MPa･√m

Thermal conductivity: 25°C 15-85 W/(m･K)

Dielectric loss factor:0.4

Volume resistivity: 25°C >1014 Ω･㎝

Breakdown strength:DC >15㎸/㎜

The Torbo® Si3N4 Silicon Nitride Ceramic substrate used in electronics fields such as power semiconductor modules, inverters and converters, replacing other insulating materials to increase production output and reduce size and weight. Double-sided heat dissipation in power cards (power semiconductors) , power control units for automobiles. Their extremely high strength also makes them a key material that increases the life and reliability of the products they are used in.

What is Si3N4 Silicon Nitride Ceramic substrate commonly used for? Silicon nitride is often used as an insulator and chemical barrier in manufacturing integrated circuits, to electrically isolate different structures or as an etch mask in bulk micromachining.

What are the disadvantages of silicon nitride? Unlike other ceramic materials, Silicon Nitride can hold similar loads to bearing steel; however, it is unsuitable for the race design in any application with shock loading due to the hardness of the material.