Advances in Cleanroom Technology Second Edition

Whyte, W. (2024) Advances in Cleanroom Technology Second Edition. Independently published. ISBN 9798882924903

Abstract

This book is a compilation of articles written by Dr William (Bill) Whyte to add an extra scientific dimension to designing, testing and operating cleanrooms. Cleanrooms can be designed to provide a wide spectrum of cleanliness. The cleanliness should match the needs of the type of product being manufactured. However, cleanrooms are often designed by experience, and not by scientific and engineering calculations, and often found to be cleaner, and more expensive to build and operate, than is required, or are less-clean and cause more contamination of products than desired. Contained in this book is Dr Whyte’s work on designing cleanrooms by calculating the required air volume supply rate and ventilation effectiveness for a required standard of air cleanliness in a cleanroom. A problem may exist in correctly operating a cleanroom, as the hazard from various sources of contamination is often unknown, which causes the cleanroom to be inefficiently run. This problem can be largely overcome by use of risk management and risk assessment methods that are developed and discussed in this book. Also, the lack of knowledge of the contribution of contamination from various sources, such as people, floors, surfaces, and air supply, may cause inefficient operation of a cleanroom, and information about the contribution of contamination from these sources is supplied in this book. Another difficulty with running cleanroom is inefficient test methods, such as used to measure air supply volumes and velocities, and the concentration of total particles and microbe-carrying particles. Increasing the collection efficiency of such methods is discussed in several articles in this book. A major and universal difficulty with cleanrooms is the problem of deciding what level of cleanliness is required to manufacture a particular type of product. By approaching this problem through the study of deposition of airborne particles onto surfaces, a reasonable estimate can be obtained of the required ISO airborne cleanliness class for an acceptable amount of contamination of product or process. This approach is explained in articles in this book. The first edition of this book was written six years ago and since then, several articles have been written, and five of these have been added to this book, although several less relevant articles have been removed. Also, in this second edition, the articles are better arranged, and the research summaries at the beginning of each section of articles have been improved to give a clearer and more holistic explanation of the information in the book. It is hoped that the information in this second edition of the book will be more useful to the reader.

• Item Type: Books
• Status: Published
• Glasgow Author(s) Enlighten ID: Whyte, Dr William
• Authors: Whyte, W.
• College/School: College of Science and Engineering > School of Engineering
• Publisher: Independently published
• ISBN: 9798882924903

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