China pv cell Manufacturers, Suppliers, Factory

In the semiconductor industry, quartz is widely used, and high-purity quartz products are even more important consumables in wafer production. The production of silicon single crystal crucibles, crystal boats, diffusion furnace core tubes, and other quartz components must use high-purity quartz glass products.

Recently, our company announced that the company has successfully developed a 6-inch Gallium Oxide single crystal using the casting method, becoming the first domestic industrialized company to master the 6-inch Gallium Oxide single crystal substrate preparation technology.

Currently, many semiconductor devices employ mesa device structures, which are predominantly created through two types of etching: wet etching and dry etching. While the simple and rapid wet etching plays a significant role in semiconductor device fabrication, it has inherent drawbacks such as isotropic etching and poor uniformity, which result in limited control when transferring small-sized patterns. Dry etching, however, with its high anisotropy, good uniformity, and repeatability, has become prominent in semiconductor device fabrication processes. The term “dry etching” broadly refers to any non-wet etching technology used for removing surface materials and transferring micro and nano patterns, including laser etching, plasma etching, and chemical vapor etching. The dry etching discussed in this text specifically pertains to the narrow application of processes using plasma discharge—either physical or chemical—to modify material surfaces.

The most basic stage of all processes is the oxidation process. The oxidation process is to place the silicon wafer in an atmosphere of oxidants such as oxygen or water vapor for high-temperature heat treatment (800~1200℃), and a chemical reaction occurs on the surface of the silicon wafer to form an oxide film (SiO2 film).

The recent announcement of the 2024 Nobel Prize in Physics has brought unprecedented attention to the field of artificial intelligence.

Semiconductor materials are the materials with electrical conductivity between conductors and insulators at room temperature, which are widely used in fields like integrated circuits, communications, energy and optoelectronics. With development of technology, semiconductor materials have evolved from the first generation to the fourth generation.