ROHM Sensors

Research and Development

ROHM is focused on the development of new technologies with an eye towards the next generation, for example by o ering breakthrough products and implementing R&D that strikes an optimized balance between materials, design engineering, production technology, and improved quality.

Surface Emitting Laser Diodes

Surface emitting laser diodes that can achieve a narrower divergence beam is currently being developed.
A new laser oscillation mechanism (resonator) is being introduced using nanofabrication technologies, making it possible to generate high-directivity beams.
These laser diodes are expected to be adopted in proximity sensors and for distance measurement.

Features

  • Generates extremely narrow divergence beams
  • Simplies optical systems (i.e. for lenses)
  • Surface light emission allows for thinner packages

Applications

  • Proximity Sensors
  • Distance Measurement
  • Infrared Light Sources
Narrowing beam

Nanofabrication Technology

Nanofabrication Technology

(Example) SEM picture of 2D Photonic Crystal

Terahertz Wave Device

ROHM is developing compact terahertz wave solid-state devices of operating at room temperature.
High frequency operation makes them ideal for high-speed wireless communication and terahertz wave non-destructive inspection.

Features

  • Oscillation and detection at room temperature using a resonant tunneling diode
  • Compact and simple terahertz device

Applications

  • Ultra-high-speed Wireless Communication
  • Security
  • Food Inspection
  • Non Destructive Imaging

Oscillation Spectrum and Detective Sensitivity

Oscillation Spectrum and Detective Sensitivity

Key Features of Terahertz Waves

  • Co-existence the directivity and permeability of radio waves
  • An inherent spectral nger print terahertz
  • Selective absorption by moisture content

Soil Environmental Sensors

LAPIS Semiconductor has developed soil environmental sensors for social infrastructure and IT agriculture monitoring, and is conducting experiments towards improving agricultural productivity, disaster prevention, and infrastructure monitoring.

Features

  • Integrated semiconductor-based sensor provides simple, real-time soil monitoring
  • Compact, monolithic sensor measures PH (acidity/alkalinity), EC (electrical conductivity), and soil temperature
  • Enables practical evaluation of solutions for social infrastructure and smart agriculture

Applications

  • Social Infrastructure Monitoring
  • Smart/IT Agriculture
  • Healthcare and Wearables
Social Infrastructure Solution

Social Infrastructure Solution

IT Agricultural Solution

IT Agricultural Solution