Introduction: Guangdong Huaguan Semiconductor Co., Ltd. was established in 2011. It is a national high-tech and Shenzhen high-tech enterprise specializing in the research and development, packaging, testing, and sales of semiconductor devices. The company has an internationally advanced semiconductor integrated circuit packaging and testing production line, and a technical team with rich experience in the design, packaging, and testing of integrated circuits. We have the production capacity to achieve an annual output value of 300 million RMB and an annual shipment of 2 billion integrated circuits. Currently, our products include power management, operational amplifiers, audio amplifiers, interfaces and drivers, logic devices, memory, time base and clock, data acquisition, MOSFT, and special circuits. They are mainly used in automotive electronics, medical electronics, the Internet of Things, instrumentation, security, network communication, industrial automation, LED lighting, switch power supplies, smart home appliances, gold card engineering, intelligent transportation, and other fields. Main product series: operational amplifiers, audio amplifiers, interfaces and drivers, logic devices, memory, time base and clock, data acquisition, MOSFT, and special circuit application fields: mainly used in automotive electronics, medical electronics, Internet of Things, instrumentation, security, network communication, industrial automation, LED lighting, switching power supplies, smart home appliances, gold card engineering, intelligent transportation and other fields.