DASM conducts acoustic surveys and renovation design of research laboratories for a leading American semiconductor component manufacturer

The DASM Institute, with its leading reputation in the field of acoustics, has recently executed a project for noise measurement, survey, and acoustic design for an acoustics-compliant research laboratory belonging to a major U.S. semiconductor components manufacturer.

Project Overview

In the semiconductor components manufacturing industry, technical requirements for the working environment, particularly for Research and Development (R&D) or product testing areas, are becoming increasingly stringent. One of the key factors determining the operational quality of these facilities is their acoustic characteristics.

Understanding this, the enterprise contacted the DASM Institute to conduct noise survey and assessment of the existing status, and subsequently, perform acoustic design and renovation of the research laboratory to meet acoustic standards, thereby better serving production needs.

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The client of DASM is a U.S.-invested enterprise operating in the semiconductor components manufacturing sector, currently operating a large-scale factory in Dong Nai. This is one of the world's leading manufacturers in the semiconductor components field, with key product lines including:

• Hybrid Integrated Circuits
• Discrete semiconductor components used for automotive, small signal, analog signal, and mixed-signal circuits
• Semiconductor devices for consumer and industrial applications

The requirement is to renovate the existing laboratory and research space, ensuring compliance with international acoustic standards regarding background noise level, sound insulation, and reverberation time control.

DASM's process for acoustic survey, measurement, and noise assessment

The DASM engineering team conducts detailed surveys, strictly adhering to international standard procedures to ensure the highest accuracy and reliability:

Background Noise Level Measurement

Background noise is measured at various locations within the test room, with each measurement point recorded continuously for 10 minutes. The objective is to determine the average background noise level and evaluate the potential impact on sensitive measuring equipment.

Sound Insulation Evaluation

DASM performs measurements of sound transmission through partitions, ceilings, doors, and other interface areas. Analyzing the Sound Transmission Class (STC) and Weighted Sound Reduction Index (Rw) helps determine the current effectiveness of the structure's sound insulation.

Reverberation Time (RT60) Measurement

Reverberation time is one of the most critical indicators for evaluating the acoustic characteristics of a room. DASM uses the RT60 measurement method to assess sound reflection and sound absorption within the interior space.

Noise from Chillers and Motors Measurement

The main noise sources such as chillers and motors are measured using specialized equipment. This helps identify unwanted sound sources that affect the precision of the research environment.

Acoustic design solutions proposed by DASM

Based on survey results and data analysis, DASM proceeds with acoustic design and overall renovation, ensuring the following technical targets are met:

1. Soundproof Room Design

The room is renovated using high-quality sound-absorbing and sound insulation materials, optimizing the sound absorption coefficient and minimizing unwanted sound transmission. Materials used include:

• Rockwool sound insulation and sound-absorbing panels
• Multi-layer sound insulation panels
• Specialized noise-control doors
• Acoustic ceiling structures

2. Acoustic Enclosure Design for equipment

Equipment such as chillers and motors are installed inside specialized acoustic enclosures with multi-layer absorption and sound-absorbing structures, ensuring that noise radiation to the surrounding environment is minimized.

3. RT Optimization

DASM adjusts the ideal reverberation time in the room space according to ISO 3382 standards, ensuring that the reverberation time is suitable for the requirements of precision measurement and testing.

Technical standards applied in noise measurement and acoustic survey

The entire process of surveying, noise measurement, and design is executed based on reputable international standards, including:

• ISO 1996 – Description, measurement and assessment of environmental noise
• ISO 9614 – Determination of sound power levels of noise sources
• ISO 717, ISO 12354, ISO 16283 – Rating and measurement of sound insulation in buildings
• ISO 3382 – Measurement of room acoustic parameters
• ISO 16032, ISO 11201 – Measurement of sound pressure levels emitted by equipment
• ASHRAE Handbook – Chapter 48 – Sound and Vibration Control in HVAC systems
• NF S31-080, BS 8233:2014, BS 4142:2014 – Guidelines for acoustic performance and industrial noise assessment

Benefits provided to the enterprise when using the acoustic survey and design services of the DASM Institute

After the project was completed, the enterprise achieved clear benefits:

• A stable acoustic environment, ensuring high precision for R&D activities
• Background noise reduced to a level below the threshold of interference with sensitive equipment
• Minimization of noise interference from electrical equipment, increasing work efficiency
• Full compliance with international standards, ready for technical inspections and quality assessments

DASM – A reliable acoustic partner for the high-tech industry

With experience in executing numerous background noise measurement, acoustic survey, and acoustic solution consulting projects for high-tech factories, cleanrooms, and specialized laboratories, DASM is proud to be a reputable partner in:

• Acoustic consulting and acoustic environment design according to specific requirements
• In-depth acoustic survey and analysis
• Implementation of noise control and reverberation time (RT60) solutions
• Ensuring project quality meets ISO, ASHRAE, BS, and NF standards

If your enterprise is looking for effective and internationally standardized noise control and acoustic environment design solutions, please contact DASM for acoustic consulting and a detailed quotation for services .