SMIC is the largest wafer foundry in China, which basically represents the cutting-edge technology of domestic chips. Founded in 2000, its service approach is to manufacture integrated circuit chips for customers according to their own or third party integrated circuit designs.
SMIC Founded in 2000, SMIC is the first integrated circuit wafer manufacturing company in China. Headquartered in Shanghai, the company is the largest in the worldFabless, the first semiconductor and device design company, started integrated circuit design and research and development business in 1991 to bring together industry talents, give play to industrial integration advantages, and provide Hisilicon chip sales and services.
2, Zhaoyi Innovation This brand company was founded in 2005 belongs to Beijing Zhaoyi Innovation Technology Co., Ltd. is a design and development of various kinds of memory, controller of a chip enterprise in Shenzhen, Hong Kong, Shanghai and other places with subsidiaries to provide customers with convenient services.
3, state-owned chip companies are: Unigroup Group Unigroup Group Co., LTDTsinghua University's high-tech enterprises.
4, through self-developed chips, Hengtong Optoelectronics can provide excellent performance and solutions in the field of high precision and high speed optical chips.
1, the principle of the lithography machine is through a series of light source energy, shape control means, the beam is transmitted through the mask drawn with the line diagram, the objective lens compensates for various optical errors, the line diagram is scaled down and mapped to the wafer, and finally the chip is formed.
2, use of lithography machineIt is one of the core equipment of chip manufacturing, which can be divided into several kinds according to its use: there are lithography machines for the production of chips; There are lithography machines for packaging; There are also projection lithography machines for LED manufacturing.
3, from ultraviolet to deep ultraviolet, and then to extreme ultraviolet, currently only the most advanced extreme ultraviolet lithography machine can produce 7 and 5 nanometers of chips.
4, lithography is the most important processing process of integrated circuits, his role is like the role of the lathe in the metalworking workshop. Lithography is the most critical technology for manufacturing chips. In the entire chip manufacturing process, the implementation of almost every process,It's all about lithography.
Raw materials of single Wafer: The raw materials for chip production are mainly Silicon wafers, which are a round sheet of high-purity silicon.
The composition of silicon wafers is silicon, silicon is refined from quartz sand. Silicon wafers are purified by silicon elements (99.999%) and made into silicon rods, which become quartz semiconductor materials for manufacturing integrated circuits. A chip is a specific chip needed for chip manufacturing. The thinner the wafer, the lower the production cost, but the processThe more demanding it is.
The material of chip manufacture is semiconductor material, such as silicon, germanium, etc. These materials need to be processed and treated in multiple steps before they become suitable for chip manufacturing. Wafers are the basis of chip manufacturing and are round sheets made of semiconductor material.
The raw material of the chip is a wafer, the composition of the wafer is silicon, silicon is refined by quartz sand, the wafer is the silicon element to be purified (9999%), and then these pure silicon into silicon rods, become the manufacture of integrated circuits. The ions are implanted in the wafer to generate the corresponding P and N class semiconductors.< / p >