The sales volume of Core Optoelectronics' Si PIN detectors has exceeded 15,000 units.

In June 2026, Core Optoelectronics Technology (Shandong) Co., Ltd. announced good news: The two major series of Si-PIN detectors PA350 and PA200 independently developed by the company, from the beginning of 2025 to June 2026, have achieved a cumulative sales volume of over 15,000 units. This achievement not only verifies the market's recognition of domestic high-end detectors, but also indicates that the process of domestic substitution in the core components of X-ray fluorescence spectrometers (XRF) is accelerating comprehensively.

Technological Breakthrough: From "Being Held Back" to "Domestic Replacement"

The Si-PIN detector is the core detection component of X-ray fluorescence spectrometers and X-ray diffraction instruments, and has long been monopolized by enterprises from Germany and the United States. Since its establishment in 2019, Core Optoelectronics has set the goal of "domestic production of high-performance silicon-based detectors", focused on the upstream of the industrial chain, and established an IDM model integrating chip design, wafer manufacturing, packaging and testing, and component development, achieving full control of the entire industrial chain.

PA350 and PA200 are the two main products launched by the company for the XRF market. In terms of technical indicators, the energy resolution of PA350 is superior to 400eV@5.9keV (273K), while that of PA200 is superior to 190eV@5.9keV (258K), both reaching the advanced level of similar international products. In July 2024, PA350 was selected into the first batch of "first-of-a-kind" electronic products list in Shandong Province, marking the official recognition of its technical maturity and market value.

Market Validation: 15,000 Units Behind the Industry Choice

From the beginning of 2025 to June 2026, within just one and a half years, the cumulative shipment of PA350/PA200 exceeded 15,000 units. This figure is quite impressive in the domestic high-end detector industry. According to the New Year's message of Core Optoelectronics in 2026, the core component shipment of XRF in 2025 was 6,200 units, and the domestic market share has exceeded one-third.

The cumulative sales of 15,000 units reflect the real choices of the downstream market. As domestic detectors have reached par with imported products in key indicators such as energy resolution, stability, and consistency, more and more XRF equipment manufacturers are turning to domestic solutions. Industry analysis indicates that the PA350 and PA200, which adopt the same size and interface design, can achieve seamless in-situ upgrades, reducing the switching costs for customers.

Industry Depth: From Single Product Breakthrough to Systemic Capability

The continuous increase in sales is inseparable from the support of systematic capabilities. The six-inch semiconductor production line of Core Optoelectronics located in Shanting District, Zaozhuang City, Shandong Province, has an annual production capacity of 60,000 to 120,000 wafers, covering more than 100 types of silicon detector products. Its independently developed ion implantation (OII) process has raised the product final qualification rate to 99.7%, far exceeding the international industry average of 80%.

The broader industrial picture is that, starting with Si-PIN detectors as a breakthrough point, Core Optoelectronics is extending its technological capabilities to more advanced silicon drift detectors (SDD), medical CT PD planar array detectors, and other fields. General Manager Cao Xuelai disclosed that the energy resolution of the SDD detector component system has reached 131 eV @ 5.9 keV, reaching the international advanced level. In 2025, the company, in collaboration with Shandong University, Senovision, etc., submitted the project "Development and Industrialization of Back-illuminated Four-sided Interchangeable Detector Modules for Medical CT", which was approved for the key research and development plan of Shandong Province.

Prospect: Domestic Replacement Enters the Deep Waters

15,000 units is not just a sales figure; it is also a testament to the transition of domestic high-end detectors from "usable" to "easy to use". With the continuous promotion of policy measures for the domestication of key components and the increasing demands from downstream users for the security and stability of the domestic supply chain, the market space for the Kexin Optoelectronics PA series products is expected to further expand.

From breaking the monopoly to occupying one-third of the domestic market share, Core Optoelectronics completed the market breakthrough of PA350/PA200 in less than two years. The greater potential lies in whether this company can replicate the successful experience in the Si-PIN field to higher-level product lines such as SDD and CT detectors, and achieve a leap from "following" to "leading" in the broader semiconductor detector market.