IN Brief:
- Koh Young is adding a second 12,800-square-metre production centre alongside its existing Yeoju facility in South Korea.
- The investment is intended to double production capacity for 3D measurement and inspection equipment serving electronics and semiconductor manufacturing.
- The new centre will add industrial X-ray inspection production capability, with completion targeted for August 2027.
Koh Young Technology plans to double production capacity at its Yeoju complex in Gyeonggi Province, South Korea, by adding a second 12,800-square-metre production centre for electronics and semiconductor inspection equipment.
The new building will match the footprint of the existing Yeoju facility and is scheduled for completion in August 2027. Koh Young says the additional capacity will support demand for 3D precision measurement and inspection systems serving AI-server and advanced-semiconductor manufacturing, while also providing production capability for industrial X-ray inspection equipment.
Inspection is being pulled further into both electronics assembly and advanced semiconductor packaging as component densities rise and process tolerances narrow. High-density server boards, fine-pitch packages, advanced substrates, and increasingly complex semiconductor structures give production lines less room for dimensional variation before yield or reliability is affected.
Koh Young built its core equipment business around measurement-based solder-paste inspection and automated optical inspection. Its portfolio now extends into semiconductor inspection, dispensing-process inspection, final optical inspection, and manufacturing software, while X-ray technology adds another route to structures that cannot be assessed adequately through direct optical access.
AI-server manufacturing is contributing to that shift because accelerator systems combine large processors, high-speed memory, power-delivery hardware, connectors, optical modules, and dense multilayer boards in assemblies with high component value. A defect detected late in the process can therefore carry a larger financial penalty than the same fault in a simpler board.
Advanced packaging poses a related measurement problem. Chiplets, high-bandwidth memory stacks, fine-pitch interconnects, and three-dimensional package structures increasingly include critical features beneath surfaces or between assembled components, where conventional two-dimensional inspection provides incomplete information.
Optical techniques remain attractive because they can provide fast, non-contact measurement in production, but X-ray methods can add information on buried structures. The two are therefore becoming complementary rather than interchangeable as manufacturers attempt to control more complicated package geometries without slowing high-volume lines excessively.
A recent $720 million Onto Innovation investment in Rigaku illustrates the same direction elsewhere in semiconductor process control. That partnership is combining optical metrology with X-ray techniques for V-NAND, DRAM, logic, and other structures that are becoming difficult to characterise with one measurement method alone.
Koh Young operates in a different part of the inspection market, but the production problem is comparable. Equipment has to collect enough dimensional information to identify defects and process drift while still matching the throughput of printing, placement, dispensing, packaging, and other upstream operations.
Doubling equipment capacity at Yeoju will require more than additional floor space. Inspection systems combine precision mechanics, cameras and optics, motion control, electronics, calibration, software, and final system verification, so higher factory output also increases requirements for specialist labour, component supply, calibration capacity, quality control, and field support.
Koh Young has not disclosed a unit-output target for the enlarged site. The August 2027 completion date gives the company time to add capacity alongside order growth, rather than bringing the entire expansion online immediately, and also creates room for the industrial X-ray product line to develop before the new centre enters operation.
The company’s announcement links recent demand with AI servers and advanced semiconductors, but the durability of that demand will be measured in shipped and calibrated equipment rather than additional square metres. Inspection is becoming more valuable as assemblies become harder to measure; the Yeoju expansion now has to show that measurement precision can scale with production volume.
