After 7 years of effort, the 1200V silicon carbide Schottky diodes of GPT, a domestic leading enterprise in SiC power semiconductors, were tested for five months by GRGT based on the AEC-Q101"Automotive Grade Discrete Semiconductor Component Stress Test" standard issued by the Automotive Electronics Council. The tested power devices met all the specified qualification methods and standards, and no failures were found.

　　GPT became the leading manufacturer of domestic silicon carbide power devices to be tested by an authoritative third-party testing organization and passed the AEC-Q101 certification.

　　The AEC (Automotive Electronics Council) officially published the AEC-Q101 standard in 2013.

　　This specification is the standard for the entry of discrete component products into the automotive market, and it is also the latest international standard for automotive discrete devices. The verification includes 18 testing items, such as high temperature reverse deflection, temperature cycling, high pressure cooking, high acceleration stress, high temperature and high humidity reverse deflection, intermittent operating life, ESD performance etc. Each test item is designed for the environment in which the device may encounter, which to protect safety while driving. The test uses random sampling to select the devices for reliability test, the first stage test items and conditions follow the AEC-Q101 standard, and some items are even stricter than the AEC-Q101 standard, the second phase of testing standards all higher than AEC-Q101.

　　As one of the few domestic third-party testing organizations that have completed AEC-Q100,

　　AEC-Q101, AEC-Q102, AEC-Q103, AEC-Q104, AEC-Q200 validation reports---GRGT has national level qualifications, such as the former State Ministry of Information Industry Military Electronic 602 measurement and testing station, national CNAS laboratory accreditation, China Metrology Certification (CMA) laboratory, national defense laboratory (DILAC), general assembly military laboratory, secondary confidential unit, the USA UL approved laboratory (security), and also the third party laboratory certified by many OEMs and Tire-1 suppliers, such as Geely, The Great Wall, JAC group, Chery, Dongfeng Nissan, GAC FCA, FAW-VW, Valeo, Continental AG, Jabil, Magna, Marelli, Bosch, Siemens.

　　SiC power devices are gaining more and more attention in new energy vehicle applications.

　　Motor drive, on board charger (OBC), DC-DC and other applications all require high quality

　　SiC power devices, so many suppliers are actively deploying the automotive field. If manufactures want to enter the Tier 1 automotive electronics supply chain, they must get two tickets. The first is the automotive quality management standard IATF 16949, a quality management system for automotive OEMs and their Tier-1. The second ticket is based on the AEC-Q automotive reliability verification standard proposed by the International Association of Automotive Electronics, in which power devices apply to the AEC-Q101 specification. GPT has already obtained the IATF16949:2016 certificate in 2018, and the international shipping standard DNV (including USCG of US Coast Guard) certification in early 2020. With this AEC-Q101 verification passed, it paves the way for its expansion into the automotive market.

　　Reliability issues is the most core technical issues of power semiconductors. As the semiconductor chip with the highest current and voltage level, whether power diodes and

　　transistors can withstand customer’s harsh application conditions, whether can withstand the high energy shock and high frequency switching, which are the access threshold for power devices to successfully enter the market. As the earliest IDM manufacturer engaged in the production of silicon carbide devices in China, GPT have many years of experience in the design, production, quality control and application of SiC products. Especially in various reliability related screening, testing and failure, and has withstood the test of various strict customers. GPT’s market share has been expanding year by year, and it is a very reliable partner for downstream customers.