On August 19th, at the intelligent diode production facility of Guizhou Yaguang Electronic Technology Co., Ltd., technicians were seen calibrating laser printing equipment. This is the on-site execution of the "One Item, One Code" project at Yaguang Electronics, a national-level specialized and innovative "Little Giant" enterprise. Assigning a digital "ID card" to each tiny diode is a necessary step for achieving "zero-defect" manufacturing of automotive-grade chips, according to Xiang Fei, Deputy General Manager of Yaguang Electronics. "Our diodes must withstand temperatures ranging from minus 40°C to 150°C, with a failure rate of less than one part per million." Since establishing an academician workstation with the University of Electronic Science and Technology of China in 2014, Yaguang Electronics spent three years developing a high-efficiency automotive avalanche diode, breaking foreign technological monopolies and subsequently leading the drafting of two industry standards. The technical specifications of its current products are now comparable to international first-tier products from companies like Bosch.

Technical breakthroughs were only the first hurdle. The real challenge lies in transforming a single "qualified" laboratory sample into millions of mass-produced units that consistently meet standards. "In the early stages, most of our production lines were manual, leading to inconsistent quality," Xiang Fei explained. When Yaguang Electronics attempted to enter the global top-tier supply chain, Valeo, a supplier known for its rigorous "devil's audits," demanded intelligent production lines. Yaguang Electronics quickly discovered that the designated equipment's stable process parameters were key to ensuring maximum product consistency. Currently, one out of every five rectifier diodes globally comes from Yaguang Electronics, which holds a nearly 20% market share and ranks third worldwide in the industry. With the advent of the electric vehicle era, Yaguang Electronics is expanding into the controller sector. "Previously, we only made a single component; now we provide complete solutions," said Xiang Fei. The company has taken the lead in mass-producing integrated starter-generator (ISG) motor controllers and belt-driven starter-generator (BSG) motor controllers, making it the only Chinese enterprise to achieve this level of mass production.

In the workshop of another electronic component manufacturer, Guiyang Sunlord Xunda Electronics Co., Ltd., also a "Little Giant" in its field, an extreme pursuit of "smallness" is underway. Inductors measuring just 0.6mm by 0.3mm require precision winding, soldering, and coating on wires thinner than a human hair, a process nearly invisible to the naked eye. Deng Shichun, Deputy General Manager of Sunlord Xunda, stated, "Fewer than three companies worldwide can mass-produce inductors of this size. Sunlord Xunda ranks among the top three globally, with an annual output of 5 billion units and a 15% share of the global mobile phone inductor market." This achievement is the result of a three-year technical effort by a 10-person team, overcoming challenges in precision winding control, high-speed precision soldering, and DIP coating. In 2020, the company invested nearly 500 million yuan in an intelligent transformation, introducing a MES system and AI-powered visual inspection machines. These now inspect 1,200 inductors per minute, a tenfold increase over manual inspection, while overall inspection efficiency has improved 50-fold. Looking ahead, Sunlord Xunda is focusing on new materials like high-frequency, low-loss, high-temperature-stable, and high-density energy storage types, and developing high-frequency soft magnetic and high-temperature ceramic materials. In terms of new processes, the company is advancing towards micron-level precision winding and integrated copper-magnetic co-firing. Its new market strategy is fully geared towards new energy and AI computing sectors. "We will continue to maintain R&D investment at no less than 5% of sales revenue. This isn't sacrificing profit; it's protecting it," Deng Shichun emphasized.

Meanwhile, at the Nanming Intelligent Manufacturing Industrial Park in Guiyang, another form of "precision" is taking root. In the exhibition hall of Taixin Semiconductor (Guizhou) Co., Ltd., glass cases display rows of black chips smaller than a fingernail – gallium nitride (GaN) RF chips, which serve as the "hearts" of 5G/6G base stations, satellite internet, and UAV data links. Taixin Semiconductor relocated its headquarters to Guiyang in 2024. "Guizhou has prioritized electronic information manufacturing, and Nanming District's focus on third-generation semiconductors and RF chip packaging and testing aligns perfectly with our business direction," said Tang Zhengcun, Administrative Director. He noted that the industrial park provides comprehensive services from factory space and policy support to talent and project implementation, making it a highly competitive location. Before relocating, Taixin lacked proper facilities, resulting in low production efficiency and long delivery cycles. Since settling in, the company has established its own complete production line for packaging, testing, and micro-assembly, equipped with a Class 1000 cleanroom and dedicated standardized factory buildings. "In the first half of this year, our actual delivered order value reached approximately 25 million yuan," Tang Zhengcun added. Leveraging teams from Tsinghua University and Xidian University, Taixin has mastered design capabilities for advanced process nodes from 0.45 to 0.15 microns. In niche areas like Ka-band microwave monolithic integrated circuits and high-power GaN power amplifiers, some of its performance indicators now benchmark against international counterparts.

In 2025, Guizhou's electronic information manufacturing industry reached an output value of 120 billion yuan, while revenue for software and IT services above designated size hit 107.5 billion yuan, quadrupling compared to the end of the 13th Five-Year Plan period. By 2026, the province aims for its digital-intelligent industry scale to surpass 300 billion yuan, with a 15% growth in the added value of electronic information manufacturing and a 15% increase in software and IT services revenue.