Semiconductor graphite powder

Graphite powder is a kind of material with very soft texture and gray black color. Perhaps we are not familiar with graphite “Ben Zun” in our life. We may understand the term graphite powder for the first time through middle school textbooks. But its function is pervasive in our life. Graphite powder has a very powerful conductive effect! Moreover, it has been applied to many aspects of the power industry and made a great contribution to human efforts in power. Its chemical stability is also a very strong advantage. It is not only used in the power industry, but also in many other aspects.

High quality natural flake graphite powder has the characteristics of good high temperature resistance, conductivity and lubricity. Inferior graphite powder has poor thermal shock resistance, no obvious effect of oxidation resistance and high temperature resistance, or even no corrosion resistance.

Good quality graphite powder has established an important leading position and future development trend in various industries by virtue of its superior performance in all aspects. If we choose high-quality natural flake graphite powder, we will create greater industrial value.

Graphite powder has very good chemical stability. Graphite processed in a special way has the characteristics of good thermal conductivity and low permeability, because it is widely used in manufacturing, reaction tank, filter, absorption tower, combustion tower, heat exchanger, pump equipment, etc. At the same time, it is widely used in papermaking, synthetic fiber, acid-base production, petrochemical and other industrial departments, which can save a lot of metal materials.

Semiconductor industry

Semiconductor industry is a new scientific and Technological Department, which has attracted great attention in recent years, and graphite powder has also become an indispensable material for the development of semiconductor industry. Because the conductivity of graphite needs to be used in semiconductors.

The higher the carbon content of graphite powder, the better the conductivity. Generally, the indexes to be considered are particle size, heat resistance and purity.

Particle size distribution

The granularity corresponds to different mesh numbers, and the specification is expressed by mesh numbers. The larger the sieve number of conductive graphite powder, the smaller the particle size, and the better the lubrication performance. It can be used in the production field of lubricating materials.

The particle size used in the semiconductor industry should be very fine, because it is conducive to easier processing precision, high temperature and compressive strength and small loss. Especially for sintered molds, high processing precision is required.

Particle size distribution, such as 20 mesh, 40 mesh, 80 mesh, 100 mesh, 200 mesh, 320 mesh, 500 mesh, 800 mesh, 1200 mesh, 2000 mesh, 3000 mesh, 5000 mesh, 8000 mesh, 12500 mesh, and 15000 mesh at the most.

Heat resistance

In the application of conductor industry, many products need to be heated continuously. In order to prolong the service life of devices, the properties of conductive graphite powder are as follows: excellent reliability and high temperature impact resistance.

Purity requirements

The requirements for graphite powder in semiconductor industry production are: the higher the purity, the better, especially the graphite devices touched between them. If they contain too many impurities, they will pollute semiconductor materials. Therefore, we need to strictly control the purity of conductive graphite powder and graphitize them at high temperature in order to minimize the gray level.