Changzhou Mingseal Robot Technology Co., Ltd.

Customer scenario A major laptop OEM in Vietnam required a high‑throughput inline solution for FPC module chip coating, encapsulation and protective low‑temperature hot‑melt filling. The line needed to reach production of 100,000 parts per 24 hours (10w/24h) while using low‑temp thermoset adhesives to avoid thermal stress on flexible printed circuits and sensitive components. Key priorities were repeatable micro‑dot placement, minimal stringing, fast recipe changeover for multiple FPC variants, and full MES traceability. Challenges  FPC assemblies present thin, flexible substrates that warp easily and contain dense component arrays. Applying low‑temperature hot‑melt requires tight temperature control to hit the adhesive viscosity window for flow and wetting, but not so hot as to damage substrates or components. Traditional offline dispensers or manual dosing could not maintain consistent bead geometry at the target throughput, causing rework, poor protection, and yield loss. Mingseal FS600DDF solution Mingseal configured an FS600DDF Visual Inline Dispensing Machine tailored to the customer’s FPC chip coating and protective fill process. The system combined dual‑valve dispensing, precision gantry motion, full temperature control for heated syringe cartridges/lines, and 2D/3D vision alignment to meet the demanding throughput and low‑temperature adhesive requirements. Key technical approach Dual‑track, dual‑valve throughput architecture: The FS600DDF’s optional double‑track and dual‑valve configuration was deployed to attain 100,000 units per day. Parallel processing reduces cycle time per part while maintaining independent recipe control for different stations (coating vs. encapsulation). Precise thermal management for low‑temp hot‑melt: Heated syringe cartridges and controlled feed lines maintain adhesive viscosity in the optimal range for low‑temperature curing thermosets. Closed‑loop temperature control prevents overheating (protecting FPC materials) while ensuring consistent dispensing behavior across long runs. High‑speed, high‑precision motion and dispensing: With repeatability of ±10 μm (3σ) on X/Y axes and Z repeatability ±5 μm, the gantry reliably places micro‑dots and beads around chips and connectors. Piezo or fast VCM valves were tuned to prevent stringing and deliver repeatable micro‑drops required for protective fillets and bead sealing. Vision alignment and inline verification: High‑resolution cameras (≤8 μm/pixel) locate fiducials and compensate for part shift or warp before dispensing. After deposition, AOI checks bead continuity and placement; failed parts are flagged or diverted, eliminating long runs of defective boards. Process flow and recipe control Material prep: Operators load low‑temp hot‑melt into heated cartridges and select the part recipe from MES. Temperature and dispense parameters are recipe‑locked. Alignment: Vision corrects for translation and rotation on the FPC carrier; lateral‑pushing and pinch‑roller modules stabilize thin substrates to avoid warp during conveyance. Dispensing: The gantry follows multi‑pass segmented paths for fills and fillets; dual valves run staggered strokes to optimize motion time and reach UPH targets. Verify & log: Inline AOI and optional weighing record deposit metrics; process data, images and alarms are logged to MES for traceability and SPC. Results and business value Achieved target throughput: With dual‑track/dual‑valve configuration, motion optimization and parallel processing, the line met the 100,000 parts/24h requirement without sacrificing precision. Improved first‑pass yield: Precise temperature control, vision alignment and recipe locking reduced rework and variability, improving yield and lowering warranty risk. Low thermal stress: The closed‑loop hot‑melt system preserved FPC integrity by maintaining low cure temperatures while delivering secure encapsulation and protection. Reduced downtime and fast changeover: Quick nozzle swaps, purge routines and stored recipes enabled rapid product changeover for multiple FPC variants—maximizing line uptime. Conclusion  For Vietnamese laptop manufacturers needing high-volume FPC chip coating and low‑temperature hot‑melt encapsulation, the FS600DDF provides a scalable inline solution that combines thermal stability, micron‑level placement accuracy and parallel throughput. By integrating dual‑valve architecture, vision feedback and MES traceability, the FS600DDF secures product reliability while delivering the 100,000/24h production targets. Contact Mingseal for a pilot to validate your adhesive, part fixtures and cycle-time profile.

Customer scenario A leading South Korean MEMS microphone and sensor supplier sought to scale production of ASIC‑integrated MEMS modules while maintaining top market position on the mainland. Their process required reliable underfill for ASIC chip encapsulation and precise solder‑paste coating along the module frame. Key goals were continuous high yield, rapid detection of dispensing defects to avoid long runs of bad parts, and a substantial increase in UPH without sacrificing process stability. Challenges MEMS microphones and barometric sensors demand ultra‑small adhesive dots, controlled underfill penetration and exact paste coverage on thin, often warped substrates. Traditional dispensing lines suffered from intermittent valve drift, incomplete inspection coverage, and throughput limits — causing occasional batch escapes, rework, and constrained capacity growth. Mingseal GS600M solution Mingseal deployed the GS600M platform configured specifically for the customer’s MEMS ASIC underfill and frame solder‑paste coating tasks. The system combined a micro‑jet dispensing head (10 nL minimum) for fine underfill control, a synchronized double‑valve module for high‑speed frame paste coating, and a robust vision + inspection suite able to perform both full AOI and sampling inspections. Key technical features and process flow Micro‑jet underfill for ASIC protection: The GS600M’s micro‑jet module deposits controlled nL drops under the ASIC using non‑contact jetting to ensure complete capillary underfill without disturbing delicate bumps. Pulse, pressure and temperature recipes are stored for repeatability, eliminating variability from operator tuning. Double‑valve solder‑paste coating: For frame-level paste deposition, the optional double‑valve module runs synchronized valves to coat edges and pads quickly and uniformly. The dual‑valve architecture reduces cycle time and enables the higher UPH gains required for scaling. Integrated visual inspection with recipe‑locked control: High‑resolution cameras perform fiducial alignment and immediate post‑dispense AOI. The GS600M supports both full 100% AOI for critical features and sampling inspection modes to balance throughput and verification effort. Any out‑of‑tolerance events trigger immediate line stop or automatic quarantine to prevent extended escapes. Low‑level alarms and maintenance management: Real‑time glue/paste sensing and low‑level alarms prevent blind running. Automated purge cycles and quick nozzle changes minimize clogging and shorten mean time to repair. Performance results and value Improved yield and process stability: After deployment, the customer saw a measured yield improvement of 0.03–0.07% attributable to the GS600M’s precise micro‑dosing and proactive defect isolation—translating to fewer reworks and higher finished goods throughput. Superior defect control: The combination of full AOI for critical bonding points and sampling inspection for frame paste avoided prolonged production of defective batches and significantly reduced downstream failures. UPH increase of 60–80% with dual‑valve option: By equipping the line with the synchronized double‑valve module and optimizing motion profiles, the customer achieved a 60–80% throughput uplift versus single‑valve setups while preserving placement accuracy and deposit consistency. Consistent acoustic and functional performance: Precisely controlled underfill and accurate frame paste application prevented acoustic blockage and ensured reliable bonding, preserving microphone sensitivity and long‑term device reliability. Conclusion  The GS600M platform gave the Korean MEMS manufacturer the combination of micro‑precision, inspection rigor and scalable throughput needed to keep market share growth on the mainland. With micro‑jet underfill, double‑valve solder‑paste capability and integrated AOI/alarms, the GS600M improved yield, prevented sustained production defects and delivered a substantial UPH increase—helping the customer produce high‑quality MEMS microphones and sensors at scale. Contact Mingseal to pilot GS600M with your adhesive and paste recipes to quantify yield and UPH gains for your line.

Customer scenario An Algerian medical-device manufacturer scaling production of dynamic blood‑glucose test strips needed a fast, low‑risk way to validate reagent dispensing before committing valves to the production line. Key requirements were micro‑volume control to preserve costly enzyme reagents, uniform coating for consistent sensor response, a gentle fluid path to protect bioactivity, and a reliable prediction of production behavior to avoid costly rework during ramp‑up. Challenge  On‑line qualification often reveals mismatches: nozzle geometry that creates irregular dots, pulse settings that cause satellite droplets, or pressure/temperature windows that change viscosity and flow. Discovering these issues after valve installation increases downtime, reagent waste and commissioning costs—critical problems when enzyme stability and material cost are primary concerns. Mingseal FATP + KPS2000 solution Mingseal supplied the FATP (Factory Acceptance Test Pack) built around the KPS2000 piezo jetting valve as a bench‑validation kit tailored to the Algerian customer’s enzyme reagent. The pack includes a KPS2000‑compatible valve, matched piezo actuator, three nozzle sizes, mounting flange and quick‑start guide—enabling practical, hands‑on qualification of droplet formation, repeatability and basic tuning before line installation. Key technical fit Sub‑nanoliter dosing and high frequency: KPS2000 supports jetting down to 0.5 nL and up to 1200 Hz, allowing the customer to test micro‑dosing recipes that reduce reagent use while maintaining sufficient film coverage for sensor chemistry. Wide viscosity and chemical compatibility: The valve supports viscous fluids and resists common solvents, weak acids and bases, making it suitable for glucose assay formulations and stabilizers used in strip reagents. Bench evaluation of nozzle options: The FATP includes three nozzle sizes so engineers can compare edge shape, dot spread and satellite formation on real substrate types used for the strips. Controlled temperature and pressure windows: Using the pack, the team identifies stable pulse timing and pressure ranges at working temperatures (10–50°C) so on‑line settings are predictable and repeatable. Process workflow used in validation Fluid characterization: Teams run short tests on the bench to record droplet mass, spread and evaporation behavior for the enzyme formulation across the three nozzle sizes. Pulse and pressure mapping: Operators sweep drive timing and supply pressure to find the narrow window that gives single‑drop formation without satellites at target throughput. Thermal sensitivity checks: Small temperature shifts are applied to check viscosity sensitivity and to lock in the controller temperature window for production. Wear and cleaning trials: Short continuous runs estimate nozzle fouling and define cleaning/purge schedules to preserve enzyme activity and minimize downtime. Production outcomes and value Microvolume control and cost containment: Bench‑proven sub‑nanoliter dispensing recipes reduced reagent consumption per strip and lowered per‑unit materials cost during scale‑up. Uniform coating and accuracy: Validated nozzle/pulse combinations produced consistent dot geometry and film uniformity, tightening QC distribution and improving lot‑to‑lot sensor reproducibility. Gentle fluid handling preserves bioactivity: Non‑contact piezo jetting with identified low‑shear pulse profiles minimized enzyme degradation compared with trial-and-error on‑line tuning. Faster, lower‑risk commissioning: By resolving nozzle, pressure and temperature variables before installation, the customer shortened setup time, avoided rework and achieved stable production performance from first‑pass validation. Conclusion  For Algerian makers of blood‑glucose test strips, the FATP test pack with the KPS2000 valve offers a pragmatic, low‑cost path to validate micro‑dispensing recipes, reduce reagent waste, and lock production parameters before line deployment. The bench kit ensures uniform, enzyme‑friendly coating and predictable integration—helping manufacturers meet accuracy, cost and reliability targets for clinical diagnostic strips. Contact Mingseal to schedule an on‑site FATP evaluation with your reagent and substrate.