4N Silicon Rotating Target, Silicon sputtering targets, Silicon Tube Target

4N Silicon Rotating Target, Silicon sputtering targets, Silicon Tube Target

Name: Silicon (Si) rotating target

Purity: 3N5, 4N

Oxygen content: ≤ 3000ppm

Relative density: ≥ 95%

Molding process: thermal spraying

Specification: length (max) 4000mm

Wall thickness: 3 ~ 13mm, customized according to user needs, sample processing, drawing processing

Advantages: low oxygen content, high density, high purity

Application: vacuum coating, silicon target for experimental or research level, electronic, photoelectric, decorative plating, functional film, etc

Product packaging: vacuum packaging / vacuum neutral packaging / special packaging external reinforced packaging

Production process: vacuum thermal spraying

Applicable instrument: various types of magnetron sputtering equipment

Minimum order quantity: one piece

Silicon target size:

1: Diameter < 360mm, thickness > 1mm (disc / cone / rod)

2: Length < 300 mm width < 300 mm thickness > 1 mm Rectangle / sheet / step shape (can be spliced)

3: Outer diameter < 360mm, inner diameter > 1mm, wall thickness > 1mm, length > 1mm (tube / ring / rotating target)

Purpose:

Industrial grade coating, experimental or research grade silicon target, sitarget, electronic, photoelectric, military, decorative, functional film, etc

Purity is 99.99%. It has the advantages of high purity, high density, low oxygen content and good conductivity. The maximum length can reach 4000 mm.

The symbol is Si, the atomic number is 14, the relative atomic mass is 28.0855, there are amorphous silicon and crystalline silicon two kinds of allotropes, belongs to the third period of the periodic table, IVA group metal like elements.

There are amorphous silicon and crystalline silicon. Crystal silicon is gray black, amorphous silicon is black, density is 2.32-2.34 g / cm3, melting point is 1410 ℃, boiling point is 2355 ℃, crystalline silicon belongs to atomic crystal. It is insoluble in water, nitric acid and hydrochloric acid, but soluble in hydrofluoric acid and alkali. Hard and metallic.

Silicon has obvious non-metallic properties and can be dissolved in alkali hydroxide solution to produce (metasilicate) and hydrogen.

Silicon atom is located in the IV main group of the periodic table. Its atomic number is Z = 14 and there are 14 electrons outside the nucleus. The electron is outside the nucleus, from low silicon atom to high, from inside to outside, which is called the shell structure of electron. There are two electrons in the first layer and eight electrons in the second layer, which reach the stable state. The valence of electrons is the most dominant factor in the conduction of outer silicon atoms.

It is because of this structure that silicon atoms have some special properties: the four valence electrons in the outermost layer make silicon atoms in metastable structure. These valence electrons make silicon atoms combine with each other by covalent bonds. Because the covalent bonds are relatively strong, silicon has high melting point and density; its chemical properties are relatively stable, and it is difficult to mix with other substances (except hydrogen fluoride and alkali liquor) at room temperature There is no obvious free electron in silicon crystal, which can conduct electricity, but the conductivity is lower than that of metal, and increases with the increase of temperature.

When heated, it can react with halogen, nitrogen, carbon and other nonmetallic elements, as well as with some metals such as Mg, CA, Fe, Pt, etc. Silicides are formed. It is insoluble in ordinary inorganic acid, soluble in alkali solution, and hydrogen is released to form corresponding alkali metal silicate solution, which can interact with water vapor at red heat temperature.

Application

1. High purity monocrystalline silicon is an important semiconductor material.

2. Cermet, an important material for space navigation.

3. Optical fiber communication, the latest modern means of communication. Glass fibers with high transparency can be produced by using pure silica.

4. Silicon organic compounds with excellent properties.