INDUSTRY COMPONENT

Mechanical Mounting Plate

A precision mounting plate used in probe card interfaces for semiconductor wafer testing.

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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.

mechanical mounting plate probe card interface semiconductor test equipment wafer testing precision mounting alignment plate Mechanical Mounting Plate in Computer, Electronic and Optical Product Manufacturing

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

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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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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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.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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