CosX Solder Ball Mounting & BGA Ball Repair

SOLDER BALL MOUNT

Delivering micron-level accuracy and high throughput for advanced semiconductor packaging.

Substrate BGA Ball Mount

Over 80,000 solder balls per cycle with ±25 µm precision.

BGA Ball Repair

Intelligent defect detection and rework, restoring 100% yield.

Versatile & Scalable

Built for substrates, CSP, and flip-chip devices with Industry 4.0 integration.

Close-up of a BGA ball repair “Ball Head” tool replacing solder balls on a semiconductor substrate.

SOLDER BALL MOUNT

At CosX Solution, Solder Ball Mounter and BGA Ball Repair are more than processes — they are critical enablers of next-generation semiconductor packaging. As device designs move toward finer pitches, higher density, and stricter reliability demands, ensuring solder ball placement accuracy and rework capability is essential to both yield and cost efficiency.

CosX has established itself as a trusted partner for fabs and OSATs worldwide by delivering a complete ecosystem that combines high-throughput substrate BGA ball mounting with micron-level BGA ball repair under one platform. This integration not only maximizes productivity but also ensures that packages with defects can be salvaged instead of scrapped, dramatically lowering the total cost of ownership.

Both mounting and repair solutions are designed for seamless Industry 4.0 integration. Features include SECS/GEM connectivity, OHT/AGV support, and inline ball recovery systems that reclaim unused balls for reuse. With tool-less jig conversions in under 30 minutes, fabs can rapidly adapt to new formats without extended downtime. By optimizing flux use and enabling ball recycling, CosX systems align with global sustainability goals while lowering operational expenses.

For fabs seeking higher yield, lower cost, and long-term scalability, CosX Solder Ball Mounter and BGA Ball Repair solutions stand as the trusted choice in advanced packaging.

BGA Ball Repair System, Mizar BA-1800R model, featuring enclosed repair modules and advanced vision control.

Substrate BGA Ball Mount

CosX Solder Ball Mounters are designed for mass ball placement at scale without compromising accuracy. Using advanced optics and precision mechanics, our systems place more than 80,000 solder balls per cycle with micron-level alignment, supporting ultra-dense packages and warped substrate compensation.

Highlights:

  • Throughput optimized for high-volume lines
  • Placement accuracy down to ±25 µm
  • Stable transfer with proprietary Fur Bin system
  • Inline recovery to minimize material loss
  • Rapid jig changeovers for flexible production
  • Handles substrates warped up to 15 mm
  • Pillar mounting capability for specialized applications
BGA Ball Repair System, Mizar BA-1800R model, featuring enclosed repair modules and advanced vision control.

BGA Ball Repair System

Defective or missing solder balls pose a significant risk to yield and reliability. CosX BGA ball repair systems are purpose-built to detect and correct these issues with micron-level precision. Equipped with intelligent defect recognition, our systems identify missing, oversized, undersized, or misaligned balls. Using vacuum pick-and-place and precision reflow, they restore the package to 100% functionality with ±15 µm repair accuracy. This ensures that valuable substrates and devices are not scrapped due to minor defects, significantly lowering cost per unit and supporting sustainable manufacturing practices.

Highlights:

  • Handles ball sizes as small as 60 µm
  • Automated defect detection via 25MP optical system
  • Recovery per missing ball in < 3 sec
  • Standalone station or inline integration

Overview

Feature

Substrate BGA Ball Mount

BGA Ball Repair

Primary Function

High-throughput ball placement on substrates

Rework and recovery of defective solder balls

Throughput

  • > 80K balls per cycle,
  • 200–240 strips/hour
  • 100% recovery yield,
  • < 3 sec per missing ball

Placement Accuracy

±25 µm
±15 µm

Supported Ball Sizes

Ø0.125 – Ø0.76 mm
Ø0.06 – Ø0.89 mm

Applications

BGA, CSP, Flip-Chip, Pillar Mounting

Defect correction, reballing, yield recovery

Deployment

Standalone or Inline mass production

Standalone or inline rework station

Applications & Industries

CosX solder ball mount and repair solutions are deployed across diverse semiconductor sectors:

  • Consumer Electronics – smartphones, tablets, and wearables
  • High-Performance Computing (HPC) – servers, GPUs, and AI accelerators
  • Automotive Electronics – safety, infotainment, and ADAS modules
  • 5G & Networking – base stations, routers, and optical modules
  • R&D and NPI Lines – prototyping and qualification of new packaging designs

Frequently Asked Questions

A solder ball mounter is a precision system that places tens of thousands of solder balls with micron-level accuracy onto substrates, enabling BGA, CSP, and flip-chip packaging.

Mount systems attach solder balls during initial assembly, while repair systems rework missing or defective balls to recover yield without scrapping the substrate.

CosX Solder Ball Mount systems handle Ø0.125–0.76 mm, while the BGA Ball Repair system supports Ø0.06–0.89 mm, covering the full range of advanced packaging needs.

Yes. Both systems support SECS/GEM connectivity, inline ball recovery, and OHT/AGV automation for smart factory environments.

By combining high-throughput mounting with micron-level repair, CosX solutions maximize usable output, reduce scrap, and lower cost per packaged device.

Ready for a Project or Demo?

CosX solutions are deployed across major semiconductor hubs in Taiwan, Japan, Korea, China, Southeast Asia, Europe, and North America. Our global service network supports both high-volume fabs and pilot lines.