Structured Manufacturing Data (2026)

Probe Card

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Probe Card used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Probe Card is characterized by the integration of Probe Needles and Substrate/PCB. In industrial production environments, manufacturers listed on CNFX commonly emphasize Tungsten-rhenium alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An interface component in wafer testing that establishes electrical connections between test equipment and semiconductor wafer dies.

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Product Specifications

Technical details and manufacturing context for Probe Card

Definition
A critical component of wafer probers that provides the physical and electrical interface between automated test equipment (ATE) and individual semiconductor dies on a wafer during electrical testing. It contains precisely arranged probe needles or contacts that make temporary connections to the wafer's bond pads or bumps to perform functional and parametric tests before dicing.
Working Principle
The probe card positions probe needles or contacts onto the bond pads of semiconductor dies on a wafer. When the wafer prober brings the wafer into contact, the probes establish temporary electrical connections, allowing test signals to be sent from the ATE through the probe card to the die, and test results to be returned. This enables electrical characterization, functional verification, and binning of semiconductor devices at wafer level.
Common Materials
Tungsten-rhenium alloy, Beryllium copper, Ceramic substrate, Polyimide film, Gold plating
Technical Parameters
  • Probe tip diameter and pitch between adjacent probes (μm) Standard Spec
Components / BOM
  • Probe Needles Part
    Make physical and electrical contact with wafer bond pads
    Material: Tungsten-rhenium alloy with gold plating
  • Substrate/PCB Part
    Provides structural support and electrical routing between probes and interface connectors
    Material: Ceramic or high-frequency PCB material
  • Space Transformer
    Converts fine-pitch probe array to coarser-pitch interface for connection to test head
    Material: Multilayer ceramic or organic substrate
  • Interface Connector Part
    Connects probe card to automated test equipment (ATE)
    Material: Metal contacts with plastic housing

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Probe Card.

Test Probe Card Wafer Probe Card high-frequency probe card for semiconductor testing tungsten-rhenium alloy probe needles ceramic substrate probe card design wafer testing interface connector solutions custom probe card for optical product manufacturing

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Wafer Prober
View system integration details
Test Interface Unit
View system integration details
Handler / Prober (for component ATE)
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-50 psi (contact force per probe)
other spec: Current per probe: 0.1-500 mA, Frequency: DC to 10 GHz
temperature: -40°C to +125°C (operating range)
Media Compatibility
✓ Semiconductor wafers (Si, GaAs, SiC) ✓ Test equipment interfaces (ATE systems) ✓ Cleanroom environments (ISO Class 1-5)
Unsuitable: Corrosive chemical environments (acids, strong solvents)
Sizing Data Required
  • Number of DUTs (Devices Under Test) and pitch requirements
  • Test signal specifications (frequency, current, voltage)
  • Wafer size and die layout pattern

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Probe Tip Wear/Damage
Cause: Repeated contact with wafer pads causes mechanical abrasion, misalignment, or over-travel leading to tip deformation, oxidation, or contamination buildup.
Electrical Performance Degradation
Cause: Oxidation/corrosion of probe tips or contact surfaces, contamination from wafer residues or environmental particles, or insulation breakdown due to moisture ingress or thermal cycling.
Maintenance Indicators
  • Increased contact resistance readings or inconsistent electrical test results during wafer probing
  • Visible probe tip deformation, discoloration, or residue buildup under microscope inspection
Engineering Tips
  • Implement regular cleaning cycles using appropriate solvents and techniques (e.g., dry brushing, ultrasonic cleaning) to remove contamination without damaging probe tips
  • Establish and maintain proper overdrive settings, alignment procedures, and environmental controls (humidity, temperature, cleanliness) to minimize mechanical stress and corrosion

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ANSI/ESD S20.20 - Electrostatic Discharge Control DIN EN ISO/IEC 17025 - Testing and Calibration Laboratories
Manufacturing Precision
  • Probe Tip Position: +/- 2 μm
  • Contact Resistance: +/- 5 mΩ
Quality Inspection
  • Optical Probe Tip Inspection
  • Electrical Continuity Test

Factories Producing Probe Card

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 materials are used in probe card construction for optimal performance?

Probe cards typically use tungsten-rhenium alloy for durable probe needles, beryllium copper for spring properties, ceramic substrates for thermal stability, polyimide film for insulation, and gold plating for superior conductivity.

How does a probe card interface with semiconductor testing equipment?

The probe card serves as the critical interface between automated test equipment (ATE) and semiconductor wafer dies, establishing precise electrical connections through probe needles that contact individual die pads during wafer-level testing.

What are the key components in a probe card bill of materials?

Essential BOM components include probe needles for electrical contact, substrate/PCB for structural support, space transformer for signal routing, and interface connectors for equipment integration, all optimized for computer and electronic manufacturing applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

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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