Name

T Plus

Legal name

T Plus Co. Ltd.

Website

https://tplus-co.com

Company type

Private

Founded year

2014

Operating status

Operating

Ownership category

akta.pro rank

Product category

RF Test Probes & Measurement Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Testing Laboratories and Services (54138)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Test, Probe & Burn-In Equipment (Wafer Sort/Final Test) (HDAHAEAJ)

akta.pro secondary industry

Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches) (IMAGAFAC)

Keywords

• RF probe manufacturing
• High-frequency testing
• Semiconductor test equipment
• Microwave probe solutions
• RF measurement services

Headquarters

HQ city

Shiroi

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. RF Probe Hardware Sales: Sale of RF probes, probe cards, test fixtures, and probe stations. Products include various frequency ranges from 26GHz to 325GHz with different configurations (single, dual, differential).
2. Measurement Services: RF measurement services including S Parameter measurement (up to 325GHz), RF performance testing, load pull (up to 67GHz), high-speed digital device measurement, eye pattern analysis, TDR (up to 50GHz), and noise measurements (1/f noise, noise figure, noise parameter).
3. EM Simulation Services: Electromagnetic simulation services for RF probing applications.
4. Calibration Kit Sales: Custom design calibration substrates and kits supporting SOLT/TRL calibration with accurate resistance value control (+/- 0.3%).

Pricing tiers

Go-to-market motion1 record

Distribution channels7 records

Marketing channels3 records

Core offering

T Plus designs, manufactures, and sells high-frequency RF probes, RF probe cards, RF test fixtures, and probe stations covering DC to 325GHz for wafer-level, PCB, and IC package testing. The company complements its probe hardware with custom design services, calibration kits, RF measurement services (S-parameter, TDR, load pull, noise), and electromagnetic simulation services for semiconductor and electronics manufacturers.

Product overview

T Plus is an RF probing solution provider offering a comprehensive portfolio of precision RF probe products and measurement services. The core product lineup includes RF Probes (Probe Heads) ranging from 26GHz to 325GHz with various configurations (single, dual, differential, waveguide), Adjustable Dual RF Probes, Custom Design RF Cantilever Probes, DC+RF combination probes, DC probes, and Calibration Substrates. These are complemented by RF Probe Cards, RF Test Fixtures, and Probe Stations for wafer/PCB testing. The company also provides measurement services including S-parameter testing (DC-325GHz), high-speed digital device testing, and noise testing, as well as EM simulation services. All products are manufactured at their Japan facility with over 10 years of R&D and manufacturing expertise.

Differentiator

Problem solved

Functional benefit

Products and services

• RF Probe (Probe Head) Air coplanar RF probe heads with low insertion loss and return loss, available in single, dual, and differential configurations from 26GHz to 110GHz, plus waveguide probes up to 325GHz for high-frequency RF measurement.
• Adjustable Dual RF Probe Patented adjustable probe allowing configuration between GS/SG, GSG/GSG, or S/S configurations up to 4,000µm (4mm) on the X axis, with a micrometer structure for easy handling, supporting frequencies up to 67GHz.
• Custom Design RF Probe (RF Cantilever Probe) Custom-fabricated RF cantilever probes with unique configurations, un-uniformed pitch, and different tip planarity alignment, supporting up to 10 RF ports and high-power applications, with no initial cost requirement.
• DC + RF Probe Combined DC and RF probe solution featuring cantilever DC probes with up to 25 pins and minimum 50µm pitch, paired with RF capabilities supporting 40–67GHz frequencies.
• DC Probe DC cantilever probes with minimum 50µm pitch, supporting 1 to 34 pins in standard configurations, featuring long life cycle and durable construction, with no initial cost requirement.
• Calibration Substrate / Kit Calibration substrates with accurate resistance value control (±0.3%) supporting SOLT/TRL calibration in GS, GSG, GSSG, GSGSG configurations with pitches from 50µm to 1000µm, available with no initial cost.
• RF Probe Card RF probe cards with long life cycle (over 2M contacts in auto probe mode for cantilever type), available in 10GHz, 40GHz, and 67GHz configurations with de-embed file support.
• RF Test Fixture RF test fixtures with low insertion loss and return loss, featuring original RF contactor design for stable contact, supporting bare chip, PKG IC, electric module, E/O module, and substrate testing up to 1mm pitch.
• Probe Station for Wafer / PCB Optimized manual probe stations for wafer and PCB testing with easy handling and repeatable contact, available with frequency extender mount options.
• RF Measurement Service RF measurement services including S-parameter testing (up to 325GHz), RF performance testing, load pull testing (up to 67GHz), high-speed digital device testing, eye pattern analysis, time domain analysis (50GHz), and noise testing including 1/f noise, noise figure, and noise parameter.
• EM Simulation Service Electromagnetic simulation services supporting RF probing and measurement applications, leveraging Keysight EMPro and PLTS2016 software tools.

Quantifiable outcome

• RF Probe Card life cycle over 2 million contacts in Auto probe mode (Cantilever type)
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core, major and minor.

• MoDeCH Co. Ltd.coreStrategic or Co-development PartnerT Plus collaborates with MoDeCH Co. Ltd. as a measurement alliance partner. MoDeCH provides high-level RF measurement technology and knowledge. The partnership enables effective use of each company's technical background and mutual use of different measurement systems, allowing T Plus to provide high technical level measurement services with wide range at reasonable prices. The alliance provides detailed feedback for improving measurement service and product quality.
• Honestco Electronics Co. Ltd.coreChannel Partner/ Reseller/ DistributorExclusive distributor for China, Taiwan, and worldwide customers. Contact: Wilson Lin ([email protected]). Handles sales and customer support for these regions.
• Shanghai Fintest Technology Development Co., LtdmajorChannel Partner/ Reseller/ DistributorExclusive distributor for China market. Contact: Benson Liu ([email protected]). Handles local sales and support in China.
• PhotonteckminorChannel Partner/ Reseller/ DistributorDistribution partner for China market. Contact: Stan Zeng ([email protected]).
• Yeoil Global CompanycoreChannel Partner/ Reseller/ DistributorExclusive distributor for Korea market. Contact: Jeong Hangil ([email protected]).
• DSF Systems Co.minorChannel Partner/ Reseller/ DistributorSales partner for Korea market. Contact: SY Park ([email protected]).
• RAM N.S Technologies Ltd. (RAM-TECH)coreChannel Partner/ Reseller/ DistributorExclusive distributor for Israel market. Contact: Shai Kadary ([email protected]).

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Regional players

• Accretech: Accretech (Tokyo Seimitsu) is a Japanese manufacturer of probe stations, wafer prober equipment, and test systems primarily serving Japan-based semiconductor customers. It is a regional peer competing with T Plus's probe station offering in the Japanese market.

Broad incumbents

• Anritsu: Anritsu is a Japanese test and measurement equipment manufacturer of VNAs, spectrum analyzers, and RF test systems used in wireless and high-frequency device test. It is a broad incumbent in the same RF measurement ecosystem T Plus serves, though it focuses on instruments rather than probe heads.
• SÜSS MicroTec: SÜSS MicroTec manufactures probe stations, test equipment, and lithography tools for the semiconductor and MEMS markets. Its probe station product line competes with T Plus's wafer/PCB probe stations in semiconductor R&D and production test environments.
• Keysight Technologies: Keysight is the leading global test and measurement equipment vendor whose VNAs, PNA-X systems, and probe stations are used alongside T Plus probes. While not a direct probe head competitor at the same scale, Keysight sets the platform standard T Plus integrates with and competes in adjacent RF test solutions.

Direct peers

• FormFactor: FormFactor (including the legacy Cascade Microtech franchise) is the dominant global supplier of RF/microwave probe stations, probe cards, and analytical probe solutions. It is the most direct competitor to T Plus in the high-frequency wafer probing market, with overlapping product lines across DC-to-THz probing and probe cards used in semiconductor test.
• Cohu: Cohu (parent of Cohu Semiconductor Test Group, including Xcerra and Everett Charles Technologies) is a major manufacturer of probe cards, test contactors, and test handlers for the semiconductor industry. Its probe card portfolio overlaps directly with T Plus's RF probe card business in semiconductor final test.
• MPI Corporation: MPI Corporation is a Taiwan-based manufacturer of advanced probe stations, RF/DC probes, and probe cards serving semiconductor and photonics test. Its Summit and TS probe station lines and RF probe portfolio directly compete with T Plus probes and stations in Asian semiconductor labs.
• Wentworth Laboratories: Wentworth Laboratories manufactures manual and semi-automatic probe stations used in semiconductor failure analysis and device characterization. Its probe station portfolio is comparable to T Plus's probe station product line for wafer-level and PCB testing.
• Yokowo: Yokowo manufactures high-precision probe pins, contact probes, and test solutions for semiconductor and electronic device testing. Its probe pin and test contactor lines overlap with T Plus's DC probes and RF contactor offerings in semiconductor test fixtures.
• GGB Industries (Picoprobe): GGB Industries is a US-based specialty manufacturer of Picoprobe microwave probes used for RF/microwave device characterization, similar to T Plus's high-frequency probe offering. It is a direct specialty competitor in the high-frequency microprobe niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about T Plus