FourSemi was founded in 2016. The core team members have more than 20 years of experience in the world‘s leading semiconductor companies. FourSemi team have rich experience of complex structure mixed-signal IC design.  FourSemi has diversified product forms and strong technical strength. Its products cover Car Audio Amplifier, Mid/High Power Audio Amplifier, Smart Audio Amplifier, SPC Audio Amplifier, Haptic Driver, Power Management, etc.  Performance parameters of FourSemi products are comparable to domestic and foreign first-line IC companies. They are also widely used in smartphones, tablets, wearable devices, smart speakers, IOT, automotive applications, etc.

FourSemi integrated digital and analog circuits and audio algorithms together and launched domestic Smart PA FS1601 and large power amplifier FS2105 in 2017 and 2021 respectively, achieving a breakthrough in this field in China. In 2022,FourSemi won the "Annual Upstart Company Award" of China IC Billboard.

FourSemi products have been approved by domestic and international first-class brand customers. Mass production customers include Samsung, Xiaomi, vivo, moto, Honor and other well-known companies. Based on the mature supply chain system, as well as the company's long-term investment and accumulation in audio, FourSemi has broken through the signal chain, expanded the product line, and is successively launching haptic driver, flash LED drive and other signal chain upstream and downstream products.

Company Philosophy

FourSemi Chronicle of Events
  • 2025

    Established an in-depth cooperative relationship with one of the world's largest manufacturers of new energy vehicles through automotive-grade smart audio chip

  • 2016

    Company established

  • 2017

    Launched the first ASIC DSP Smart PA audio chip in China and achieved commercial sales.

  • 2018

    Entered the ODM supply chain of leading smartphone brands

  • 2019

    Broke into world-famous brands’ ODM supply chain, launched SPC product

  • 2020

    Launched N-DSP Smart PA audio chip product line

  • 2021

    Launched the first domestic high-power smart audio chip and achieved commercial sales Cumulative shipments exceeded 100 million pieces

  • 2022

    Become a direct supplier for one of the world's leading electronics companies

  • 2023

    Haptic driver chips achieved commercial sales Launch the first domestic automotive-grade smart audio chip that has passed AEC-Q100 certification

  • 2024

    Over 1 Billion shipment