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Mechanical Mounting Plate Component – Computer, Electronic and Optical Product Manufacturing

Component Specifications

Definition

The Mechanical Mounting Plate is a critical structural component in probe card interface systems that provides rigid, stable, and precisely aligned mounting for probe cards during semiconductor wafer testing. It ensures proper electrical contact between the probe card and wafer test equipment while maintaining dimensional stability under thermal and mechanical loads.

Working Principle

Provides a flat, rigid reference surface with precisely machined mounting holes and alignment features to secure the probe card in exact position relative to the wafer test equipment. Maintains mechanical integrity and alignment during repeated test cycles.

Materials

Aluminum 6061-T6 or 7075-T6 for lightweight rigidity, or Stainless Steel 304/316 for higher stiffness and thermal stability. Surface finish: Ra ≤ 0.8 μm. May include ceramic or composite inserts for thermal management.

Technical Parameters

Flatness ≤ 0.025 mm over entire surface
Thickness 10-25 mm (depending on application)
Parallelism ≤ 0.015 mm
Surface Hardness ≥ 80 HRB for aluminum, ≥ 25 HRC for steel
Mounting Hole Tolerance H7
Thermal Expansion Coefficient Matched to probe card materials

Standards

ISO 1101, ISO 2768, DIN 7168, SEMI E10

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Mechanical Mounting Plate.

Parent Products

This component is used in the following industrial products

Probe Card Interface

Electrical and mechanical interface connecting the probe card to the test head/controller in semiconductor testing equipment

View Product Details

Engineering Analysis

Risks & Mitigation

Misalignment due to thermal expansion
Fatigue failure from cyclic loading
Surface wear affecting flatness
Corrosion in humid environments

FMEA Triads

Trigger: Thermal cycling during testing
Failure: Loss of flatness and alignment
Mitigation: Use materials with matched thermal expansion coefficients; implement thermal management; regular calibration checks

Trigger: Repeated mechanical loading during probe card changes
Failure: Mounting hole wear and loosening
Mitigation: Use wear-resistant inserts; proper torque control during installation; scheduled replacement

Trigger: Environmental contamination
Failure: Surface corrosion or particle accumulation
Mitigation: Protective coatings; cleanroom compatibility; regular cleaning protocols

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101; dimensional tolerances per ISO 2768-m

Test Method

Coordinate Measuring Machine (CMM) verification; laser interferometry for flatness; thermal cycling tests per SEMI standards

Buyer Feedback

★★★★☆ 4.6 / 5.0 (10 reviews)

"The Mechanical Mounting Plate we sourced perfectly fits our Computer, Electronic and Optical Product Manufacturing production line requirements."

"Found 18+ suppliers for Mechanical Mounting Plate on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Mechanical Mounting Plate is very thorough, especially regarding technical reliability."

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Frequently Asked Questions

What is the primary function of a mechanical mounting plate in probe card interfaces?

The primary function is to provide precise, stable, and repeatable mounting for probe cards, ensuring accurate alignment with wafer test equipment and maintaining electrical contact integrity during semiconductor testing.

Why is material selection critical for mounting plates?

Material selection affects thermal stability, mechanical rigidity, weight, and compatibility with probe card materials. Proper material matching minimizes thermal expansion mismatches that could cause alignment errors during temperature cycling.

How often should mounting plates be inspected for wear?

Inspect every 50,000 test cycles or quarterly, whichever comes first. Check for flatness degradation, mounting hole wear, and surface damage that could affect probe card alignment.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Mechanical Mounting Plate