Nouvelles

Comment traiter le carbure de silicium?

Comment traiter le carbure de silicium? Carbure de silicium (Sic) Le matériau est la principale direction de développement de l’industrie des semi-conducteurs de puissance. Il est utilisé pour fabriquer des appareils d’alimentation et peut améliorer considérablement le taux d’utilisation de l’énergie électrique. Dans un avenir prévisible, Les véhicules à énergie nouvelle seront le principal scénario d’application des dispositifs d’alimentation en carbure de silicium. En tant que pionnier de la technologie, Tesla a pris les devants en intégrant des modules entièrement en carbure de silicium dans Model 3, and other first-tier car companies are also planning to expand...

Scie à boucle à fil diamanté coupée aimant NdFeB

Scie à boucle à fil diamanté coupant l’aimant NdFeB aimants en néodyme, également connus sous le nom d’aimants NdFeB, sont des cristaux tétragonaux formés par le néodyme, fer, and boron (Nd2Fe14B). This type of magnet is the second most magnetic permanent magnet after absolute zero holmium magnet today, and it is also the most commonly used rare earth magnet. NdFeB is divided into two types: sintered NdFeB and bonded NdFeB. Bonded NdFeB has magnetism in all directions and is resistant to corrosion; The sintered NdFeB is easy to corrode, et...

Processus traditionnel de production de cellules solaires

Processus de production traditionnel de cellules solaires Avant de toujours décrire le principe de fabrication et le processus de traitement des plaquettes de silicium, today we will describe the production process of traditional solar cells. Traditional cell production can be mainly summarized into 6 steps. From the perspective of the traditional cell manufacturing process, it can be summarized as the following six steps: 1) Cleaning and texturing, the main purpose is to remove various pollutants adsorbed on the surface of the silicon wafer, and to remove the cutting damage...

L’essor des plaquettes de silicium dans l’industrie photovoltaïque

The boom of silicon wafers in the photovoltaic industry Under the background of the carbon neutralization goal and the accelerated application of global clean energy, China's photovoltaic industry has achieved rapid growth as a whole. Selon les annonces standard de l’industrie de l’information sur les entreprises et les associations de l’industrie, Les principaux maillons de la filière photovoltaïque nationale maintiennent une forte dynamique de développement, avec un taux de croissance annuel de plus de 45%. Parmi eux, polysilicium augmenté de 53.4% d’une année sur l’autre, et plaquette de silicium a augmenté de 45.5%...

2022 Vue d’ensemble de l’industrie des plaquettes de semi-conducteurs

2022 Aperçu de l’industrie des plaquettes de semi-conducteurs La plaquette de silicium semi-conductrice est le support de la fabrication de puces, also known as silicon wafer because the raw material is silicon. After planning and management-free silicon refining, purification, monocrystalline silicon production, wafer forming and other processes, it can enter the subsequent links such as chip single-channel etching, which is the most important pre-process for chip manufacturing. The concept mainly includes: companies that develop and manufacture semiconductor wafers, silicon wafers and polished wafers. Classified by process According to the type of process,...

Direction du développement de l’équipement de découpe de plaquettes de silicium à fil diamanté

1) High line speed and high production capacity support the reduction of single GW investment According to the theory of fracture mechanics and the properties of silicon materials, when the maximum cutting depth of diamond abrasive grains is greater than the critical cutting depth of silicon materials, the transition from plastic cutting to brittle fracture cutting will occur. Donc, within the allowable range of the diamond wire load, appropriately increasing the steel wire speed in the multi-wire cutting process is beneficial...

Changement dimensionnel des plaquettes de silicium photovoltaïque

La taille des plaquettes de silicium photovoltaïques est dérivée des plaquettes de silicium semi-conductrices. En termes de développement , photovoltaics lag behind semiconductors by 1 À 2 generations. Over the years, the size of semiconductor silicon wafers has continued to increase, and photovoltaic silicon wafers have also experienced a process from small to large. Driven by the dilution of cost and the improvement of module quality, in the 40 years since 1981, the size of photovoltaic silicon wafers has grown from 100mm to...

Flux de traitement des lingots de silicium dans l’industrie des semi-conducteurs

À l’étape de préparation de la plaquette de silicium monocristallin, the silicon ingots need to be processed into raw silicon wafers or barewa-fers with high surface accuracy and surface quality to prepare for planarization for lithography and other processes in the first half of the IC process. Ultra-smooth and damage-free substrate surface are required here. For silicon wafers with a diameter of ≤200mm, the traditional silicon wafer processing process is: single crystal growth → cropping → outer diameter barrel grinding → flat edge or V-groove treatment...