Changzhou Mingseal Robot Technology Co., Ltd.

Customer scenario An Indian actuator and camera module manufacturer producing Voice Coil Motors (VCMs) for smartphone and automotive cameras required a fully automatic assembly cell optimized for optical-component-level accuracy. Their production demanded simultaneous glue dispensing and component placement flows, tight positional tolerances to protect lens/grating performance, and reliable inline verification to prevent rework. The customer also needed a platform capable of supporting multi-valve dispensing, tilted and rotated glue paths, and adaptable process sequences for mixed product runs. Mingseal AC100 solution Mingseal configured the AC100 automatic mounting & precision dispensing system as an integrated VCM assembly cell tailored to optical-component requirements. The delivered solution supports combined dispense-then-place and place-then-dispense workflows, enabling flexible sequencing to match different VCM designs and adhesive chemistries. The system’s compatibility with up to four simultaneous valves increases throughput and process versatility while preserving sub-micron placement performance for delicate optical elements. Key capabilities and process features Dual-mode flow: The AC100 executes both point-dispense + pick-and-place and pick-and-place + point-dispense process flows on a single line. This dual-mode capability reduces line changeover and shortens qualification cycles when moving between lens-first and adhesive-first assembly strategies. Four-valve simultaneous dispensing: The dispensing station accepts up to four valves running concurrently (piezojet, screw, or two‑component metering), allowing multi-point adhesive patterns, parallel dosing for multiple components, or independent TIM/adhesive lines for mixed product families. Parallel dispensing reduces cycle time while maintaining consistent shot mass and placement repeatability. Tilt and rotation dispensing head: The AC100’s tilting module (±30°) and rotary compensation deliver complex, multi-face dispense trajectories required for contoured VCM housings and angled magnet/lens seating. This enables uniform bead profiles on non-planar surfaces and precise edge coverage without mechanical interference to fragile optics. High-precision mounting and compensation: The mounting head combines linear-motor positioning with direct-drive fine compensation to achieve micron-class placement accuracy. Automatic focus vision recognizes varying part heights and corrects Z-axis approach for precise seating of optical components and coils. Inline adhesive effectiveness detection: A dedicated glue-effect inspection module measures bead geometry and wetting behavior immediately after dispense. By identifying under-fill, stringing, or mis-wetting in real time, the system reduces downstream rework and ensures consistent VCM damping and magnetic centering performance. Quality control and smart factory integration  AC100 logs dispense images, placement coordinates and process parameters for each unit and supports MES connectivity and industry-standard communication protocols. Integrated AOI and pick-and-place verification create closed-loop feedback to automatically tune dispense volume, pulse parameters and placement offsets during the run—improving first-pass yield and reducing variability across batches. Production outcomes and value Increased yield and reliability: Real-time glue-effect detection and accurate placement reduce optical misalignment and adhesive-related failures, boosting first-pass yield and lowering warranty risk for camera assemblies. Greater flexibility and throughput: Four-valve simultaneous dispensing and dual-mode process sequencing support mixed-model lines and higher UPH without added footprint. Reduced qualification time: Modular tooling and multi-valve compatibility shorten changeover for new optics or adhesive materials, supporting rapid product updates in India’s fast-moving mobile market. Conclusion  For Indian VCM and optical-module manufacturers seeking a high-precision, highly adaptable automated cell, the AC100 provides an integrated solution that combines advanced dispensing, angled-path capability, multi-valve throughput and inline adhesive-effect inspection. Contact Mingseal to pilot the AC100 on your VCM designs and validate cycle time, placement accuracy and adhesive performance in your production environment.

Customer scenario A Taiwanese semiconductor assembly house producing high-performance FCBGA modules required a flexible, high-throughput lid attachment cell for Ring Attach and Lid mounting. Their product mix includes large-package FCBGAs, Q‑Panel joints and glass-substrate variants where thermal dissipation is critical. The customer needed a single, modular station that could handle a wide range of thermal interface materials (TIMs), support large boats (up to 340 × 340 mm), and deliver reliable SnapCure heat-press bonding with tight process control for high-yield production. Mingseal SS400 solution Mingseal recommended the SS400 Lid Attachment System configured specifically for FCBGA Ring Attach lines in Taiwan. The SS400 was delivered as a modular dual-track platform with configurable process stations to match the customer’s need for material versatility, throughput and repeatable thermal bond quality. Key process elements delivered Multi‑material compatibility: The SS400 supports thermal grease, indium sheets (with or without flux), graphene films, diamond and composite-diamond thermal pads, plus liquid-metal interface materials. The system accepts a range of dispensing and attachment modules (piezoelectric valves, screw valves, flux-spray heads and two-component metering) so each TIM’s rheology and bonding behavior are handled without hardware swaps. Dual-track throughput and large-boat support: The dual independent tracks accept boats up to 340 × 340 mm, enabling parallel processing of large FCBGA arrays and improving Units Per Hour (UPH) without increasing floor space. Independent track control allows mixed-product runs and easier line balancing. SnapCure heat-press integration: The SS400 SnapCure unit supports up to five thermal tooling stations per machine. Peak bonding force reaches 400 kg per boat, enabling uniform thermal compression for different TIM types while minimizing interfacial voiding and contact resistance. Rapid thermal cycles are programmable to match flux-free indium or TCB (thermal compression bonding) profiles for high-reliability joints. Modular, reconfigurable line architecture: Stations (load, coating, flux spray, indium attach, lid attach, SnapCure, unload, and optional dam & fill for passive components) can be added, removed or re-sequenced to suit specific process flows. This modularity shortens qualification time for new TIMs and reduces capital risk when product requirements change. Process control and quality assurance  The SS400 provides sub-10 μm positioning repeatability via linear motors and high-resolution mark cameras for fiducial alignment. Integrated laser height sensing, electronic weighing (0.01 mg) and full-inspection cameras ensure consistent material placement, correct TIM mass, and optical verification of ring seating and lid alignment. All process data and recipe versions can be logged for MES traceability and failure analysis. Production outcomes and customer value Improved thermal performance: Controlled attachment of high-conductivity TIMs and precise SnapCure compression reduced interfacial thermal resistance, yielding lower package junction temperatures in thermal cycling tests. Higher first-pass yield: Precise TIM placement, flux control options and robust SnapCure tooling cut rework from mispositioning and voiding, improving FCBGA yield and lowering per-unit cost. Flexible manufacturing: The modular dual-track architecture allowed the customer to introduce new TIM materials and product variants rapidly, supporting short product lifecycles common in Taiwan’s foundry-driven market. Scalability and throughput: Parallel tracks and multi-tool SnapCure capability increased throughput while maintaining process repeatability required for large-package FCBGAs and Q‑Panel joint assemblies. Conclusion  For Taiwanese manufacturers targeting high-performance FCBGA Ring Attach and lid bonding, the SS400 combines material versatility, large-boat dual-track capacity and robust SnapCure thermal tooling into a single, modular production cell. The system reduces thermal interface resistance, raises first-pass yield and scales throughput—helping customers meet demanding thermal and reliability targets for advanced packaging products. Contact Mingseal to configure an SS400 pilot for your TIM portfolio and qualification program.

Customer background A major semiconductor packaging house in Penang, Malaysia, required a reliable, high-throughput wafer-level dispensing solution to support mass production of Fan-Out Wafer-Level Packaging (FOWLP). Their production roadmap demanded an in‑fab system that could run underfill, coating, flux spray, and dam & fill processes with strict cleanliness, thermal stability, and anti-warp control for mixed 8‑inch and 12‑inch wafer lots. Technical challenge  FOWLP underfill at wafer level exposes delicate redistribution layers (RDLs) and bump structures to particulate and thermal stress. Key production constraints included: Maintaining Class 10 clean dispensing to avoid contamination on exposed wafer surfaces. Controlling wafer warpage during preheat and dispense cycles (max. acceptable wafer warp 5 mm) to preserve nozzle standoff and capillary flow behavior. Delivering ±10 µm (3σ) positioning accuracy with ±3 µm repeatability and repeatable dispense volumes across full 8/12-inch wafer formats. Integrating with factory MES/AMHS for traceability and unmanned operation. Mingseal solution  Mingseal deployed the SS101 — the first domestically developed wafer-level dispensing cell qualified for FOWLP underfill mass production. System highlights and process adaptations for the Penang line included: Class 10 cleanroom-compatible enclosure with automated FOUP and open cassette handling to support both 12‑inch and 8‑inch wafers without cross‑contamination risk. Robotic wafer transfer and high-precision aligner for ±10 µm (3σ) positioning accuracy and ±3 µm repeatability; Zoned preheating and closed‑loop thermal control to bring wafers to optimal dispensing temperature while minimizing thermal gradients that cause warpage. Dual GS600SWA/SWB dispensing stations within the SS101 cell to run underfill, conformal coating, flux spray, and dam & fill operations in a configurable sequence with ±10 µm positional control. Mechanical anti-warp fixture and process tuning capable of compensating wafer warp up to 5 mm, preserving nozzle standoff and preventing tailing or void formation during capillary underfill. Post‑dispense heat dissipation station to control cool‑down rate and protect bump integrity before FOUP return, enabling consistent cure profiles and reduced stress. Production outcomes Successful FOWLP mass production: The SS101 cell enabled the customer’s transition from pilot to full-rate production for wafer-level underfill and associated processes, supporting both 8‑inch and 12‑inch wafer programs. Improved process stability: Active anti‑warp control and precise thermal management reduced underfill voiding and edge overflow, improving first-pass yield and lowering scrap. High precision and throughput: Dual dispensing stations and automated wafer handling preserved cycle time targets while maintaining ±10 µm (3σ) positioning and repeatable dispense volumes across large wafer batches. Seamless fab integration: SEMI‑compliant communication and AMHS/MES connectivity allowed lights‑out operation, full traceability, and rapid fault diagnosis through logged process data and imaging. Conclusion  As the first domestically produced wafer-level dispensing system validated for FOWLP underfill in Penang, the SS101 delivered a production‑grade solution combining cleanroom compatibility, precise thermal and anti‑warp controls, and full factory integration. Mingseal continues to support on‑site process optimization, DOE-based recipe tuning, and MES integration to help fabs scale FOWLP production with predictable yield and throughput. Contact Mingseal to arrange a pilot run or qualification plan tailored to your wafer sizes and process mix.