Overview

The GS700SU is a high-speed, high-precision dispensing system purpose-built for large-package FCBGA underfill. Designed to meet the thermal and structural demands of AI and high-performance computing (HPC) modules, the GS700SU delivers robust throughput, full inspection and production-grade process control in large-format underfill applications.

Customer challenge

A Texas manufacturer producing large FCBGA modules required a reliable, automated underfill cell that supports larger package footprints and board boats while maintaining void‑free capillary underfill and traceable process control. The line needed to integrate into cleanroom flow, support multiple track configurations for high UPH, and provide full inspection to protect the high value of finished modules used in AI/HPC systems.

Mingseal GS700SU solution

The GS700SU was deployed for large‑package FCBGA bottom fill. Key configuration and process capabilities delivered to the Texas customer include:

• Large boat & flexible track support: The system accepts maximum boat sizes up to 325 × 325 mm in a dual‑track / four‑workstation / dual‑head layout, and supports 325 × 162 mm boats with a four‑track / eight‑workstation / dual‑head configuration. This flexibility allows the customer to process large panels or split workloads for mixed production.
• Multi‑head, multi‑track throughput: Dual independent dispensing valves combined with a four‑track architecture enable high units‑per‑hour performance.
• Compared with earlier systems, the GS700SU increases effective throughput by up to 3.7×, matching factory Q‑TIME and high‑mix production demands.
• Underfill‑specialized dispensing: Proprietary underfill valves, tilt dispensing modules and programmable dispensing patterns support tight KOZ requirements (KOZ < 200 μm) and controlled capillary flow across tall bump geometries. The GS700SU minimizes void formation while ensuring consistent wetting under large die sizes.
• Full inspection and process control: An independent AOI station, high‑accuracy laser height sensing (±1 μm) and electronic weighing (0.01 mg) verify glue placement, dot mass and complete coverage. Automated glue weight adjustment, nozzle glue detection and unit dispensing trials reduce variance and improve first‑pass yield.
• Thermal and material management: Multi‑zone temperature control with ±1.5°C heating uniformity maintains adhesive rheology during long production runs. Intelligent sequencing of product handling and glue replenishment reduces the risk of overflow or insufficient flow in large package fills.

Performance and production value

• High stability and yield: Tight process control and inline inspection deliver consistent underfill coverage for PKG >50 × 50 mm, lowering rework and improving downstream reliability for AI/HPC modules.
• Significant throughput gains: The multi‑track, dual‑head architecture enables up to 3.7× higher effective throughput versus earlier generation systems, reducing capital footprint per unit output.
• Compatibility with advanced designs: KOZ < 200 μm capability and minimum nozzle diameters down to 30 μm support dense passive placements and modern large die layouts.
• Traceability and integration: GS700SU supports semiconductor communication protocols and MES integration for full traceability of recipes, images and weight logs—critical for audit and quality control in high‑value packaging.

Conclusion 

For Texas-based AI/HPC module manufacturers working with large FCBGA packages, the GS700SU provides a proven underfill dispensing solution that combines high UPH, fine process capability and comprehensive inline inspection. By supporting large boat sizes, multi‑track throughput and underfill‑specific dispensing strategies, the GS700SU secures void‑free, repeatable underfill performance—reducing risk, raising yield and accelerating time to volume. Contact Mingseal to arrange a pilot, FAT, and MES integration plan tailored to your large‑format FCBGA production.