[Leak Detector Installation] Solving Film Sensor False Alarms at a Hwaseong Semiconductor Plant | Replacement with Acid-Specific Point Sensor (YHSP-SAR)

Hello, this is Assistant Yoo, your safety partner from Yoohantech!

Today, we visited the site of OOOOOO Co., Ltd. in Hwaseong, Gyeonggi-do, the heart of Korea’s semiconductor and display industry. Let us introduce this field installation of Yoohantech’s high-performance liquid leak detection system, a key solution for protecting corporate assets and ensuring worker safety.

OOOOOO Co., Ltd. is a key partner specializing in ultra-precision machining, precision cleaning, and special coating for semiconductor front-end process equipment parts and display manufacturing equipment components.

This company uses high-purity chemicals in its cleaning processes to restore performance and improve the quality of semiconductor and display equipment parts.

In particular, it handles strong acidic inorganic chemicals such as sulfuric acid (H2SO4), hydrofluoric acid (HF), and hydrochloric acid (HCl) for precision metal cleaning. If leaked, these inorganic chemicals can create serious hazards in the working environment and cause critical damage to expensive equipment and parts. For this reason, a highly reliable chemical leak detection system is essential.

[Leak Detector Replacement] Solving Existing Problems: Introduction of the “YHSP-SAR” Point Sensor

The previously used film-type leak detector suffered from frequent false alarms and a short sensor lifespan, which caused repeated replacement and maintenance burdens. As a result, confidence in the existing system had become very low among site personnel.

To solve this issue, we proposed and installed our electronic leak point sensor, “YHSP-SAR” as a new alternative.

Technical Features of the Electronic Leak Point Sensor “YHSP-SAR”

1. Selective detection and false alarm prevention: It is designed not to react to pure water, but to respond selectively only to designated acids, alkalis, and non-volatile organic chemicals. This fundamentally blocks unnecessary alarms caused by humidity changes or simple water ingress, maximizing the reliability of the leak detection system. (Water detection can also be added if required.)
2. Fast and sensitive response: As soon as liquid reaches the lower part of the sensor, its advanced electrode system reacts sensitively, allowing rapid detection of even very small leaks.
3. Cost-effective maintenance: After chemical detection, the entire sensor does not need to be replaced. It can be washed with water and reused immediately, significantly reducing consumable replacement costs and maintenance time.
4. System reliability: It works together with a dedicated detection module to build a stable and well-organized monitoring system. It also provides immediate alarm functions in the event of line faults or sensor damage, ensuring reliable system operation.
5. Durability in harsh environments: With its robust structure, it operates reliably in a wide range of industrial environments, including factories, laboratories, and outdoor facilities, contributing to long-term safety management.

Now, let’s take a look at the actual leak detector installation work!

This is Yoohantech’s specialist team at work.

They are carefully carrying out leak detector wiring work inside the facility.

The “YHSP-SAR” leak detector is designed as a point detection type, which offers the major advantage of flexibly adapting to changes in the field environment.

1. Adaptable to equipment and process changes: In semiconductor and display manufacturing facilities, the layout of piping and equipment may change frequently due to equipment relocation or process optimization. Unlike fixed film-type sensors, “YHSP-SAR” can be moved easily, allowing safety to be maintained without gaps in the detection area even when equipment is relocated.
2. Convenient during water cleaning: When regular floor cleaning or surrounding maintenance is required, the sensor can be temporarily moved aside and then placed back easily after the work is completed. This completely blocks false alarms and improves work convenience.

“YHSP-SAR” is an innovative product that overcomes the weaknesses of consumable film-type detectors, which require sensor disposal or replacement after leak detection.

• Easy recovery: Even after detecting acid or alkali leaks, the sensor does not suffer performance degradation. The contaminated sensor can simply be washed with water, dried, and reused immediately.
• Reduced maintenance costs: Because the sensor has a semi-permanent lifespan, it drastically reduces maintenance time and MRO costs caused by frequent sensor replacement, making it highly economical in terms of total cost of ownership (TCO). This flexible placement and easy reusability are key reasons why “YHSP-SAR” solves the frequent failures and short lifespan problems of conventional film-type detectors and provides higher reliability.

On the left is the leak alarm receiver. On the right is the inside of the receiver.

The lower image shows the receiver installed inside a stainless steel enclosure. A 105 dB high-output warning beacon was installed on top of the enclosure.

Complete Protection and Immediate Response System

• Stainless steel enclosure resistant to external environmental changes: The receiver is safely mounted inside a robust stainless steel enclosure, protecting the system from dust, external impact, and other harsh conditions while ensuring long-term stable operation.
• High-output alarm system: A 105 dB high-output warning beacon was installed on top of the enclosure so it can be clearly seen and heard from anywhere on site. This is a key element for enabling immediate response when a leak occurs.

Advanced Technology at the Heart of the Leak Detection System

• High-performance analysis module: Inside the receiver, the key module “YHSM-04S-AR” precisely analyzes data generated by the leak detector, supporting rapid and accurate situation assessment.
• Uninterruptible system: A backup battery is built in so the system does not shut down during unexpected power failures, maintaining a 24/7 continuous monitoring system.

Yoohantech’s Promise: A Leader in Customized Safety Solutions

This successful installation case at OOOOOO Co., Ltd. clearly demonstrates Yoohantech’s advanced technology and capability to provide site-specific solutions. In the same way, we provide the most reliable and fully customized safety systems based on the unique characteristics of each site.

If you are considering strengthening your facility’s safety system, or if you need clear expert guidance on complex chemical management, please do not hesitate to contact Yoohantech.

Yoohantech will be your most dependable and trusted safety partner.

It is already November, at the edge of autumn. As temperatures vary greatly during the day, please take care of your health and have a safe and energetic day.

Do you have any further questions, or would you like more information about Yoohantech’s other leak detection solutions?

Please feel free to contact Yoohantech anytime.

Your safety partner, Assistant Yoo from Yoohantech!