High-Precision Direct Drive Linear Motor Module Manufacturer SMARTWIN Intelligent Equipment Empowers Full-Semiconductor-Process Production

High-Precision Direct Drive Linear Motor Module Manufacturer SMARTWIN Intelligent Equipment Empowers Full-Semiconductor-Process Production

As a benchmark industry for precision manufacturing, semiconductor manufacturing covers wafer transfer, photo-lithography alignment, probe testing, wafer dicing, die bonding and other processes. The entire production flow imposes stringent requirements on motion units in terms of positioning accuracy, operating cleanliness, dynamic stability and low particle emission. Conventional ball screw modules suffer from drawbacks including elastic deformation, particle generation caused by friction and deflection deformation over long strokes, making them inadequate for advanced-node chip manufacturing.SMARTWIN Intelligent Equipment, a domestic independent manufacturer of direct drive components, has developed graded matching solutions tailored to various semiconductor process nodes based on its integrated LMS and BMS linear motor modules as well as the CFS iron-core linear motor platform. The company serves as a reliable supplier of core motion execution components for domestic semiconductor equipment.

The three core pain points plaguing semiconductor equipment center on nanoscale repeat positioning, Class-rated cleanroom environment control, and 24/7 non-stop high-utilization operation.SMARTWIN linear motor modules adopt a direct-drive non-contact transmission architecture, completely eliminating intermediate transmission pairs such as ball screws and timing belts. Free from mechanical backlash and precision drift caused by long-term wear, the modules are equipped with ultra-high-precision SH & SA series optical linear encoders for full closed-loop feedback, delivering repeat positioning accuracy down to sub-micron levels. This fully satisfies the positioning requirements for synchronous motion of reticle stages in lithography scanners and micro-step probing on wafer probe stations. Internal friction pairs of the modules are fabricated from low-outgassing and wear-resistant materials, enabling low-noise operation with minimal particle generation. The semi-enclosed sheet metal protective structure blocks external particle intrusion. Versions optimized for cleanliness are compatible with semi-clean working conditions such as EFEM wafer transfer chambers and vacuum inspection chambers, preventing micro-particles from scratching ultra-thin wafers and directly boosting chip production yield.

SMARTWIN has established a clear product selection logic tailored to various segmented semiconductor processes. For 8/12-inch wafer FOUP handling and long-distance cross-chamber transfer stations of Equipment Front End Modules (EFEM), the BMS heavy-load long-stroke linear motor module is the preferred choice. It supports a maximum standard stroke of 5788 mm. Its high-rigidity dual-guideway structure delivers jitter-free high-speed reciprocating motion over long distances. An external centralized grease fitting enables lubrication without disassembling the housing, drastically reducing the frequency of chamber-opening maintenance in cleanrooms and lowering the risk of contaminating the clean environment.For high-throughput precision stations such as die bonders, die bonding placement, and wafer dicing machines, the LMS narrow compact linear module is recommended. Its slim, lightweight body saves valuable internal equipment space. High acceleration and deceleration deliver dynamic response with millisecond-level position switching, ideal for high-speed chip pick-and-place and precise compression bonding.The cost-effective CFS iron-core linear motor is designed for post-packaging inspection and sorting equipment. It maintains robust dynamic performance while controlling the overall BOM cost of machinery, supporting cost reduction and domestic substitution of packaging and test equipment.

The complete linear motor module features native compatibility with SMARTWIN AKS bus servo drives, supporting multi-axis synchronous linkage via the high-speed real-time EtherCAT bus. It perfectly executes complex motion logic such as synchronous scanning of dual stages in lithography machines and parallel testing of multi-axis probe arrays. Embedded in the drive are cogging torque compensation and real-time thermal drift correction algorithms, which offset positioning deviations induced by temperature rise during long-duration continuous motor operation and guarantee consistent precision throughout mass production. All products undergo full-load 72-hour continuous burn-in testing, temperature cycling tests, and vibration durability tests prior to delivery. Their electrical insulation ratings meet the requirements for stable long-term operation in production workshops. Against the backdrop of pursuing independent and controllable semiconductor equipment industrial chains, all core components of SMARTWIN Intelligent Equipment’s linear motor modules—including mechanical structures, magnetic windings, encoders, and drive systems—are independently researched and manufactured domestically. The modules serve as a direct drop-in replacement for imported linear motion units, boasting distinct advantages in delivery lead time and localized technical support. At present, this series of modules has been mass-matched to domestic wafer inspection equipment, die bonding equipment, and laser dicing equipment. With high-precision, high-cleanliness, and high-reliability direct-drive motion solutions, SMARTWIN continues to support domestic semiconductor equipment in breaking through bottlenecks in core motion components.