Tianjin zhonghuan semiconductor co., ltd.

The company's main business includes high-voltage devices, power integrated circuits and devices, monocrystalline silicon and polishing wafers, forming a diversified operation with strong product characteristics and industry attributes.

In the field of high-voltage devices, there are mainly high-voltage diodes, silicon rectifier diodes, silicon bridge rectifiers, high-voltage diodes for microwave ovens, industrial high-voltage diodes and other products, with diffuser, GPP chip and TVS chip business as the development direction. Products are widely used in CRT TV sets, CRT monitors, microwave ovens, air fresheners, car igniters, laser printers, various high-voltage power supplies, induction cookers, washing machines, inverter air conditioners, chargers, PC power supplies and various electronic machines that convert AC to DC. The annual sales exceed 200 million yuan, and the products are sold all over the country and exported to overseas 18 countries and regions. The production and sales volume of high-voltage silicon reactors ranks 1 in the world, with an international market share of 43% and a domestic market share of 57%. The international market share of high-voltage silicon reactors for microwave ovens has reached 55%.

In the field of power devices, the 6-inch 0.35 micron power semiconductor device production line of Power Devices Division is one of the 20 key industrial projects in Tianjin, and it is a production line for manufacturing and testing semiconductor chips. The production line has domestic advanced 6-inch line production equipment, the main products are power integrated circuits, and series of power discrete devices such as VDMOS, Trench MOS, Schottky, FRD and IGBT.

In the field of monocrystalline silicon materials, it has formed four major product series, namely Czochralski silicon rod, zone melting silicon rod, Czochralski silicon wafer and zone melting silicon wafer, and is one of the most complete manufacturers of monocrystalline silicon in China. Products are mainly used in semiconductor integrated circuits, semiconductor discrete devices, power electronic devices, solar cells and other microelectronic devices. The domestic market share of zone-melting silicon single crystal is above 65%, and its output and market share rank first in the same industry in China for five consecutive years, and its production and sales scale ranks third in the world. In 2009, Tianjin Huanou Semiconductor Materials Technology Co., Ltd. and Shanghai Aerospace Automobile Electromechanical Co., Ltd. used their respective advantages in the solar energy industry to jointly establish Inner Mongolia Zhonghuan Photovoltaic Materials Co., Ltd. to engage in the industrialization project of silicon single crystal materials for green renewable energy solar cells.

The company owns 14 patented technologies and more than 200 proprietary technologies, forming a series of independent intellectual property rights. The company has more than 400 engineers and technicians, including 9 full-time and senior titles and 95 senior and intermediate titles, among which 5 enjoy special allowances from the State Council and 2 are experts awarded by the Tianjin Municipal Government. Over the years, the company has been awarded the honorary titles of "Tianjin Civilized Unit", "Tianjin Excellent Enterprise", "Tianjin Advanced Enterprise in Technological Innovation", "Tianjin Advanced Enterprise in the Eighth Five-Year Plan, the Ninth Five-Year Plan and the Tenth Five-Year Plan", "National Information Industry System Advanced Collective" and "National Enterprise Modernization Innovation Achievement Award".