Silica/Alumina Spherical Particle

Silica/Alumina Spherical Particle

Micron Company, for the first time in the world, met the need for high-performance encapsulation material by the development of producing ceramic spherical fine particle by flame spray method. By high sphericity and high purity, the products have since steadfastly protected the reliability of semiconductors which are growing increasingly high in density and function.

Micron Company has then developed spherical fine particle of alumina. Its spherical fine particle of alumina, in addition to high sphericity and high-precision particle-size control, are capable of exhibiting unique performance, with the advantages of heat resistance, hardness, thermal conduction and other characteristics of alumina.

Silica Spherical Particles

Silica filler is used mainly as sealing filler for silicon chips of ICs. The silica filler has excellent properties, such as very low coefficient of thermal expansion, high fluidity, high packing density, and reduced damage to the material in contact when it is packed.

■Features

-High purity (non crystal silica)

-High sphericity (high roundness)

-High flowability

-High filling density

-Low thermal expansion ratio

-Electrical insulation property

-Low water absorption property

■Application

-Semiconductor encapsulation material filler

-Coating materials

-Filler material for various kinds of resin

Silica Spherical Particles

Alumina Spherrical Particles

Demand for this material is expected in applications where characteristics such as thermal stability under high temperature, or sphericity and high-temperature conductivity among ceramic particles, are required.

■Features

-High purity (alpha alumina)

-High sphericity (high roundness)

-High flowability

-High filling density

-High thermal conductivity

-Low thermal expansion ratio

-Electric insulation property

-Low water absorption property

-Sharp distribution

(adjustable within the range1~80µm)

■Application

-Thermally conductive resin (for radiation)

-Bedding powder for baking

-Various kinds of spacer

-Blasting material

Alumina Spherrical Particles