P&L SEMI
KOREANENGLISH中文
Products

Optoelectronic
Products

P&L SEMI manufactures optical sensors, semiconductor devices, and packaging components.

Optical semiconductor products and wafer
Product Portfolio

From Precision Optical Sensors to Packaging Components

We provide semiconductor products for high-sensitivity optical detection, circuit protection, and optical module packaging.

01 / PHOTO DETECTOR

Photo Diode &
Transistor

Optoelectronic devices that convert light into electrical signals. Photo Diodes provide fast response and excellent linearity, while Photo Transistors use high photocurrent gain to detect weak optical signals effectively.

Applications
Optical communications, industrial sensors, automation equipment, distance and position detection
Key Features
High sensitivity, fast response, low dark current, and support for various packages
Product Inquiry →
02 / CIRCUIT PROTECTION

Zener Diode

A semiconductor device that stabilizes voltage through a controlled breakdown characteristic and protects sensitive circuits from overvoltage. It is used in electronic circuits requiring a stable voltage reference and surge protection.

Applications
Power circuits, voltage references, overvoltage protection, and industrial controllers
Key Features
Stable breakdown voltage, high reliability, compact size, and circuit protection
Product Inquiry →
03 / PACKAGING COMPONENT

Submount

A packaging component for securely mounting laser diodes, photo diodes, and optical devices. It supports heat dissipation, electrical connection, and precise device alignment to improve optical-module performance and reliability.

Applications
Optical communication modules, laser packages, sensor modules, and high-power optical devices
Key Features
Excellent thermal performance, precision machining, metal-pattern design, and customization
Product Inquiry →
APD Sensor product
04 / HIGH-SENSITIVITY SENSOR

APD Sensor

A high-sensitivity optical sensor based on an Avalanche Photo Diode. Its internal multiplication effect enables detection of extremely weak optical signals, making it suitable for long-range measurement and high-speed optical communications.

Applications
LiDAR, laser ranging, optical receivers, and precision measurement
Key Features
High sensitivity, fast response, low-light detection, and excellent signal gain
Product Inquiry →
UV Detector and ROIC module
05 / UV DETECTION

UV Sensor
Detector & ROIC

A sensor solution combining a detector that selectively senses ultraviolet wavelengths with a ROIC that processes weak optical signals. It supports UV intensity measurement, flame detection, and environmental and industrial monitoring.

Applications
UV meters, flame detection, environmental monitoring, semiconductor and industrial equipment
Key Features
UV-selective sensitivity, low-noise processing, detector–ROIC integration, and modular design
Product Inquiry →
Custom Product Inquiry

Specifications and Packages
Can Be Customized to Customer Requirements.

Technology & Product Consultation ↗