TERAQ Co., Ltd.

We find hidden defects
inside materials and structures.

TERAQ uses terahertz waves to measure the thickness of each layer and locate defects by depth. We inspect non-conductive multilayer materials and coatings on metal, without contact or damage.

Our full English site is in preparation. For inquiries, please email us.

About

Terahertz non-destructive measurement, as software and inspection services.

TERAQ specializes in terahertz non-destructive measurement and diagnostics. The company was founded to bring terahertz imaging and spectroscopy, developed in a university laboratory, to industrial sites.

What

Quantitative diagnosis of material and structural reliability

We measure material properties, degradation over time, layered structures, and internal defects such as delamination, voids, foreign objects, and moisture ingress, without contact or damage. Micro-defects that remain in products that passed quality inspection are managed as quantitative data.

How

Layer thickness from the time difference of reflected signals

Terahertz waves lie between radio waves and light. They pass through non-conductive materials and reflect at layer boundaries. From the arrival-time differences of the reflected signals, we calculate layer thickness and defect position at the micrometer scale. Unlike X-rays, they involve no ionizing radiation, and they resolve thinner layers than ultrasound.

Where

Materials and parts with multilayer structures

We inspect layered products such as automotive multilayer paint, secondary battery separators, hydrogen fuel cell membranes, thermal barrier coatings and heat-shield structures, food packaging, and semiconductor packages. Results are delivered as a report listing each item, measured value, reference range, and judgment.

Vision · Core values

Vision, mission, and core values

VISION

The standard for routine diagnostics of critical parts in repeated use

MISSION

We detect hidden risks at industrial sites early, with terahertz technology

01

Precision

We judge by quantitative data at the micrometer scale.

02

Safety

We keep to non-destructive, non-contact inspection that is harmless to people and samples.

03

Reliability

We build on verified research results and reproducible measurement procedures.

Company

Company information

  • Company nameTERAQ Co., Ltd. (주식회사 테라큐)
  • CEOHan Dae Hyun
  • Business registration no.437-86-03896
  • EstablishedJuly 2026
  • AddressRoom 5112, 5F Prime-gwan, Wonkwang University, 460 Iksan-daero, Iksan, Jeonbuk, Korea
  • Emailceo@teraq.ioteraq.support@gmail.com