RF & mmWave Testing

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Engineer operating an RF probe station for on-wafer mmWave semiconductor characterization.

In advanced wireless communication R&D, precision at high frequencies is the currency of innovation. Standard test setups often struggle with parasitic capacitance, impedance mismatch, and phase instability when characterizing next-gen 5G/6G devices, MMICs, and RF front-ends. AIMRSE RF & mmWave Solutions eliminate these variables. We provide ultra-stable, high-precision probe systems optimized for Vector Network Analyzer (VNA) integration up to 110GHz and beyond. We bridge the gap between raw high-frequency signals and reliable, publishable S-parameter data, ensuring your measurements validate your design.

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Critical RF Testing Challenges

Before selecting a solution, it is essential to understand the common high-frequency pitfalls that can compromise your S-parameter and noise figure data.

High-Frequency Signal Loss

At mmWave frequencies, even minor parasitic capacitance, cable flexing, or impedance mismatch can ruin your measurements. Our solutions utilize rigid platen architectures, premium RF cables, and optimized signal paths to minimize insertion loss, phase shift, and standing wave ratios (VSWR).

On-Wafer Calibration Accuracy

Calibrating up to 110GHz requires exact probe placement. A slight misalignment on the calibration substrate compromises the error model. We provide sub-micron positioning and vibration-free environments to ensure flawless SOLT, LRM, and LRRM de-embedding.

Probe Contact Repeatability

Microwave probes (GSG/GS) are expensive and require highly consistent overtravel to ensure stable contact resistance without skating or pad damage. Our ultra-stable platens and micrometer-driven positioners guarantee repeatable, safe landings for delicate RF probes.

Core Applications

Tailored configurations for the most demanding high-frequency device characterization scenarios.

RFIC testing setup for 5G and 6G communications

5G & 6G RFIC / MMIC

On-wafer S-parameter, noise figure, and load-pull measurements for next-generation telecommunication chips. Ensure high gain, linearity, and power efficiency for Sub-6GHz and mmWave broadband amplifiers.

Automotive radar 77GHz probe station with VNA frequency extenders

Automotive Radar (77-81GHz)

Validate FMCW radar transceivers used in modern ADAS systems. Our setups offer the high-stability probing environments essential for accurate phase and frequency characterization at E-band frequencies.

Antenna in Package AiP testing environment

Antenna-in-Package (AiP)

Specialized RF chucks and non-interfering probe arms designed to support near-field scanning and highly integrated module testing, ensuring minimal electromagnetic interference with radiating elements.

System Architecture & Core Advantages

AIMRSE platforms are engineered with core pillars to ensure precision and signal integrity in every high-frequency measurement.

Why RF Precision Architecture Matters

Standard DC probe stations are cost-effective, but they become the bottleneck in mmWave characterization. We solve these critical RF engineering limitations.

Precision Planarization

Microwave probes require exact planarization (alignment of all probe tips to the pad). Our highly stable RF Micro-Positioners ensure perfectly balanced GSG tip contact, critical for reducing contact resistance and avoiding pad damage.

Seamless VNA Integration

Long cable runs destroy high-frequency signals. Our system architecture features heavy-duty platens that allow Vector Network Analyzer (VNA) frequency extenders to be mounted directly adjacent to the probe, ensuring the shortest possible signal path.

EMI & Vibration Isolation

External mechanical vibrations cause phase noise and contact fluctuations. We counteract this by integrating massive Anti-Vibration Platforms and customized RF shielding to isolate your DUT from mechanical and electromagnetic interference.



RF and mmWave characterization is the foundation of modern wireless technology modeling. As frequencies push into the sub-THz range for 6G, the margin for error disappears. AIMRSE provides a comprehensive ecosystem of probing solutions engineered to maximize signal integrity — from manual setups for quick S-parameter checks to fully automated RF systems for extensive wafer mapping.

Trusted by RF Labs & Industry Leaders

Our global footprint demonstrates our commitment to supporting the world's most advanced high-frequency semiconductor research.

Fabless RF Designers

Leading-edge RFIC development demands ultimate measurement accuracy.

Node Scaling: Support for advanced SOI, GaAs, and SiGe BiCMOS structures, providing the stability needed for precise modeling.
First-Pass Success: High-accuracy S-parameter data reduces the need for costly silicon re-spins.

Telecom & 5G R&D

Pushing the boundaries of bandwidth and data rates.

High-Frequency Bands: Validating power amplifiers (PAs) and low noise amplifiers (LNAs) for mmWave infrastructure.
Over-the-Air (OTA): Integrated probing solutions compatible with advanced phased array antenna testing.

Automotive & Aerospace

Safety-critical systems require robust high-frequency testing.

Radar & Satcom: Ensuring the reliability of 77GHz ADAS radar chips and Ka-band satellite communication transceivers.
Temperature Dependency: Integrated thermal chucks allow RF performance validation under extreme environmental stress.

Academic Research Labs

Exploring the frontiers of Terahertz (THz) physics.

Terahertz Exploration: Providing custom waveguide integrations for sub-THz and 6G experimental device characterization.
Versatility: Modular systems that adapt easily from DC to mmWave as research projects evolve.

Engagement Model

Our structured workflow ensures a seamless transition from initial concept to a fully operational RF test bench.

Objective: Understand your high-frequency requirements and equipment constraints.

Services:

  • Technical Consultation: We analyze your target frequency range (e.g., 40GHz, 67GHz, 110GHz+), port requirements, and pad layouts.
  • VNA Compatibility: Ensure seamless mechanical and electrical integration with your preferred Vector Network Analyzer (Keysight, Anritsu, Rohde & Schwarz).

Objective: Design a tailored RF architecture that minimizes signal loss.

Services:

  • Component Selection: Choose the appropriate RF chucks, microwave micro-positioners, and probe configurations (GSG, GS).
  • Frequency Extender Mounting: Design custom brackets and platens to safely support heavy VNA extender heads close to the DUT.

Objective: Deliver and install the RF system in your lab with minimal downtime.

Services:

  • Precision Setup: Our engineers assemble the anti-vibration table, level the platen, and mount the frequency extenders securely.
  • Cabling Verification: Carefully route phase-stable RF cables and waveguides to avoid stress or bending damage.

Objective: Validate RF measurement accuracy and empower your team.

Services:

  • On-Wafer Calibration: Perform initial SOLT/LRRM calibrations using Impedance Standard Substrates (ISS) to verify baseline accuracy.
  • Operator Training: Teach best practices for RF probe planarization, safe landing, and contact repeatability to extend probe life.

Objective: Maintain peak RF performance throughout the system lifecycle.

Services:

  • Preventive Maintenance: Regular checks on platen stability, chuck planarity, and micro-positioner drift.
  • RF Consumables: Reliable supply chain for replacement microwave probe tips (GSG/SG), RF cables, and calibration substrates.

RF & mmWave Characterization FAQ

Find answers to common technical questions regarding our high-frequency probe systems.

What frequency ranges do your RF probe systems support?
Our standard RF configurations seamlessly support DC to 40GHz, 67GHz, and up to 110GHz. With specialized waveguide integrations and heavy-duty platens for frequency extenders, we can extend measurements into the sub-THz range for advanced 6G research.
What types of RF probes and pitches do you offer?
We supply and support a wide variety of high-performance microwave probes, including Ground-Signal-Ground (GSG), Ground-Signal (GS), and Signal-Ground (SG) configurations. Available pitches typically range from 50 µm to 250 µm to match your specific die pad layouts.
How do you handle on-wafer calibration (De-embedding)?
We provide precision Impedance Standard Substrates (ISS) and our systems are fully compatible with industry-standard calibration software like WinCal XE. Our highly stable positioners ensure the repeatable contact necessary for accurate SOLT, LRM, and LRRM calibration models.
Can I mount my VNA frequency extenders directly on the probe station?
Yes. To minimize insertion loss and phase instability, our RF probe stations feature reinforced, vibration-isolated platens specifically designed to securely mount heavy VNA frequency extender modules (from Keysight, Anritsu, etc.) as close to the probe tips as possible.
Is temperature-dependent RF testing supported?
Absolutely. We offer integrated RF thermal chucks designed to minimize parasitic capacitance while allowing S-parameter and noise figure measurements across a wide temperature range (e.g., -60°C to +200°C), maintaining excellent thermal and mechanical stability.

Ready to Optimize Your High-Frequency Testing?

Whether you are validating 77GHz automotive radar or exploring mmWave front-ends for 6G, our engineering team is ready to configure the perfect RF probe station for your lab. Don't let signal loss compromise your data.

Note: All AIMRSE probe systems and components are designed exclusively for professional semiconductor R&D and industrial testing. Equipment must be operated by trained personnel in accordance with standard laboratory safety protocols.

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