Vision Measuring Machine for Semiconductor Industry: Sinowon OMM Solution

In semiconductor manufacturing, from wafer dicing and chip packaging to lead frames and substrates, dimensional accuracy directly determines device performance and reliability. As chip geometries shrink and package types become more complex, traditional microscopes and projectors often fail to meet the demands for high efficiency and high repeatability.

Sinowon introduces its advanced Vision Measuring Machine (also known as OMM – Optical Measuring Machine or Video Measuring System), providing a proven Geometric Dimension Measurement solution for the semiconductor industry – covering incoming inspection, in-process control, and final quality assurance.

Key Challenges in Semiconductor Inspection: Micro Scale, Precision, and Volume

Semiconductor devices require measurement of dozens of critical parameters, including wafer saw street width, die size, pad position, lead frame pitch, mold compound flatness, coplanarity, and mold shift.

Traditional inspection methods face three major bottlenecks:

• Low efficiency – Manual point-by-point measurement cannot keep up with high-volume production cycles
• Insufficient accuracy – Micro features (e.g., pads below 0.1mm) are prone to operator or equipment errors
• Lack of traceability – No systematic SPC analysis makes it difficult to quickly locate abnormal batches

Core Advantages of Sinowon OMM / Vision Measuring Machine

The SIG series fully automatic Vision Measuring Machine integrates a high-resolution industrial camera, telecentric optical system, and intelligent edge detection algorithms to deliver non-contact, fast, and repeatable Optical Dimension Measurement.

1. Precision Capture of Micro Features

With an auto zoom lens and programmable ring/coaxial light, the Video Measuring System clearly reveals wafer surface circuits, fine gaps between lead frame fingers, and other micro details. The software supports automatic edge detection, contour comparison, and arc fitting.

Geometric Dimension Measurement includes: length, width, pitch, hole diameter, angle, roundness, and more.

2. Quantitative Flatness & Coplanarity Evaluation

The flatness of semiconductor packages and heat spreaders directly affects mounting yield and thermal performance. The SIG OMM uses laser-assisted focusing and Z-axis grating feedback to quickly scan multi-point height differences, automatically calculate flatness, and output a color deviation map. It also supports coplanarity, parallelism, and perpendicularity evaluation.

3. Batch Inspection with Automated SPC Output

Equipped with a motorized stage and pattern measurement function, the Vision Measuring Machine can inspect multiple dies or lead frame strips in one setup. The system automatically completes all Geometric Dimension Measurement tasks according to a pre-programmed path.

Results are saved to a database in real time, with automatic CPK calculation and X-bar R control chart generation – fully ready for SPC and quality traceability.

Typical Semiconductor Applications

• Wafer – Saw street width, die size, alignment mark position
• Lead frame – Inner/outer lead pitch, lead shift, coplanarity
• Molded package – Length/width dimensions, flatness, mold shift, flash height
• Substrate / carrier – Pad diameter, position tolerance, trace width and spacing
• Discrete devices – Body dimensions, lead coplanarity, marking position

Why Semiconductor Manufacturers Choose Sinowon

• Cost-effective – Competitive pricing with accuracy and stability close to imported brands
• Easy to use – Drag-and-drop programming; complex part programs can be created within 10 minutes
• Customizable reporting – Export to PDF, Excel, or SPC formats to meet customer audit requirements
• Professional support – On-site setup and dedicated semiconductor measurement templates to shorten the deployment cycle

Conclusion

As the semiconductor industry moves toward higher integration and zero-defect quality, Sinowon Vision Measuring Machines (OMM / Video Measuring System) have become a standard solution in laboratory and production line settings for many semiconductor packaging and material suppliers.

Whether for routine Geometric Dimension Measurement or flatness and coplanarity evaluation, Sinowon delivers reliable, repeatable data to help you reduce costs, improve yield, and enhance quality.

For more semiconductor measurement case studies and technical specifications, please visit the official Sinowon website:
www.sinowon.com