About TDSEMIC
Sichuan Tuodian Semiconductor Co., Ltd. — analog and mixed-signal ICs since 2011.
Company profile
Sichuan Tuodian Semiconductor Co., Ltd. (TDSEMIC) was founded in 2011 and focuses on the production and sales of integrated circuits. We operate as both a brand manufacturer and an authorised distributor, representing more than 30 domestic brands, with a business scope covering wafer design and tape-out, IC packaging and test, and IC solution development and sales.
Our team brings more than 40 years of semiconductor industry experience. In 2010 we established a packaging & test foundry together with an alloy-wire material plant in Suining, Sichuan, and set up a wafer design house in Chengdu the same year, taking custom IC design and packaging/test service orders and delivering system solutions with independent intellectual property. The Suining plant hosts our R&D centre and technical service team.
To pursue higher quality goals and meet brand-customer requirements, we have built enterprise product test standards and a quality system aligned with CNAS and TUV laboratory industry standards.
Product coverage spans power management, circuit protection, discrete semiconductors, display drivers, interface and communication, amplifiers and comparators, memory and logic, and microcontrollers — 1,698 part numbers in total, with pin-to-pin second sources for widely used imported devices wherever the electrical and mechanical fit allows.
How we work with customers
Our FAE team supports design-in: reviewing schematics, proposing alternatives, providing evaluation samples and answering parameter-level questions. For procurement, we quote from a BOM and hold stock on fast-moving part numbers so that prototype builds and small production runs are not held up by minimum order quantities.
Certifications
Over a decade of accumulated quality-system certifications.

Military Equipment Quality System
GJB9001C-2017 certificate · 2024

Quality System (Automotive)
IATF 16949 certificate · 2025

Quality Management System
ISO 9001 certificate · 2025

Occupational Health & Safety
ISO 45001 certificate · 2025
Our partners
We focus on the challenges our customers face and deliver competitive solutions that create lasting value. We work with business partners worldwide and move forward together. Through continuous innovation and investment, we keep pace with our customers and provide efficient, high-quality service — earning the respect and support of many customers through quality products and a sincere approach to cooperation.
Our culture
Dedicated to replacing imported chips with reliable domestic alternatives.
Our mission
Creating an intelligent society through technological innovation.
Our vision
To become an enterprise worthy of trust and respect.
Our values
Creating value — creating value for our customers.