Green FR4 Semiconductor Precision Hole Plate | 4 Micro-Holes ±0.01mm Tolerance

We successfully delivered a precision machined green FR4 precision hole plate for a semiconductor equipment manufacturer. Machined from green FR4 fiberglass epoxy laminate, this component features four precision-drilled small holes in a linear array for critical alignment applications in semiconductor processing equipment. The milled plate maintains exceptional dimensional stability and electrical insulation properties required for cleanroom environments.

Project Overview

Key Technical Highlights

• Linear Array Precision Holes: Four small holes machined in perfect linear alignment with ±0.01mm positional tolerance, ensuring precise component registration in semiconductor applications.
• Micro-Hole Drilling Expertise: Specialized drilling parameters achieve clean, burr-free holes with exceptional roundness and perpendicularity ≤0.02mm.
• Green FR4 Material Selection: Traditional green FR4 provides excellent electrical insulation, dimensional stability, and is widely recognized in semiconductor and PCB handling applications.
• Cleanroom-Compatible Machining: Processed in controlled environment to prevent contamination, with edges sealed to prevent fiberglass particle release.
• Single-Setup Manufacturing: Plate contour milling and precision hole drilling completed in one operation, maintaining perfect geometric relationships between all features.
• Burr-Free Edge Finish: Specialized tooling prevents fiberglass fraying and delamination, ensuring clean edges suitable for cleanroom use.

Material Properties

Quality Verification

100% inspection performed using high-resolution vision measurement system and ZEISS CMM with 1.5μm repeatability. All four hole positions verified for linear accuracy and spacing. Hole diameter and perpendicularity checked on each part. Flatness verified on granite inspection table. Material certification and first-article inspection report provided with each batch.

Industry Applications

✓ Semiconductor manufacturing equipment
✓ Wafer handling fixtures
✓ Precision alignment tools
✓ PCB testing and probing fixtures
✓ Cleanroom assembly stations
✓ Electronic component positioning
✓ Photolithography equipment components

Why Partner With Us?

• Expertise in FR4 and composite material Precision machining
• Micro-hole drilling capability with ±0.01mm positional tolerance
• Cleanroom-compatible manufacturing processes
• Specialized tooling for burr-free fiberglass machining
• Precision linear array hole patterning
• Material certification and full traceability
• Fast prototyping to production scaling