A cleanroom is any given contained space where provisions are made to reduce particulate contamination and control other environmental parameters such as temperature, humidity and pressure. The key component is the High Efficiency Particulate Air (HEPA) filter that is used to trap particles that are 0.3 micron and larger in size. All of the air delivered to a cleanroom passes through HEPA filters, and in some cases where stringent cleanliness performance is necessary, Ultra Low Particulate Air (ULPA) filters are used.
As the demand for complex cleanrooms in the life sciences grows, construction challenges mount. Making the right decisions during the building and commissioning phases of cleanrooms will help to ensure that they are successful, better integrated, more operable and sustainable. Generally speaking, teamwork among designers, operators, maintenance people and builders that focuses on project timelines will achieve the best results. The suggestions below will help drug and device manufacturers step back and better envision the whole facility during the build process.
Cleanrooms, by definition, are designed to control airborne particulate and environmental conditions. Cleanrooms can be positive or negative pressure environments that sweep a specified area with HEPA filtered air. Critical pharmaceutical, microbiological, and nanotechnological areas require adherence to exacting performance requirements. TSS’ certification programs verify that your facilities perform to appropriate international standards and client specifications.
Domestic and international regulations, customer demand, competition, and the imperatives of quality assurance are all pressures that are pushing medical device manufacturers to adopt higher standards in their cleanroom manufacturing practices. At the same time, these manufacturers are feeling countervailing pressures from the public, medical practitioners, hospitals, insurance companies, and competitors to contain costs.
The Initial Plan for Factory Construction
• Type of product, product capacity, and design specification
• Calculation of the cleanroom area
• Consideration on airflow, cleanliness, and cleanroom category
• The arrangement for process equipment
• Classification data collection for process equipment's facility requirement(Include water, electricity, gas)
• Moving lines of the process, relocation, shipping, personnel access arrangements
• The location arrangement, safety and convenience consideration for factory system
• Factories funding and milestone planning
• The investigation on the environment special requirement of the product
• Reserved for future development and expansion
• Environmental Protection Impact Assessment Plan
Environment Conditions
FAB Cleanroom
In the microelectronics industry a semiconductor fabrication plant (commonly called a fab; sometimes foundry) is a factory where devices such as integrated circuits are manufactured.
A business that operates a semiconductor fab for the purpose of fabricating the designs of other companies, such as fabless semiconductor companies, is known as a foundry. If a foundry does not also produce its own designs, it is known as a pure-play semiconductor foundry.
Fabs require many expensive devices to function. Estimates put the cost of building a new fab over one billion U.S. dollars with values as high as $3–4 billion not being uncommon. TSMC invested $9.3 billion in its Fab15 300 mm wafer manufacturing facility in Taiwan.[1]
Classification of Cleanroom based on Functionality
Typically used in manufacturing or scientific research, a cleanroom is a controlled environment that has a low level of pollutants such as dust, airborne microbes, aerosol particles, and chemical vapors. To be exact, a cleanroom has a controlled level of contamination that is specified by the number of particles per cubic meter at a specified particle size. The ambient air outside in a typical city environment contains 35,000,000 particles per cubic meter, 0.5 mm and larger in diameter, corresponding to an ISO 9 cleanroom which is at the lowest level of cleanroom standards.
Classification of Cleanroom based on Functionality
Cleanrooms are used in practically every industry where small particles can adversely affect the manufacturing process. They vary in size and complexity, and are used extensively in industries such as semiconductor manufacturing, pharmaceuticals, biotech, medical device and life sciences, as well as critical process manufacturing common in aerospace, optics, military and Department of Energy.
A room in which the concentration of airborne particles is controlled, and which is constructed and used in a manner to minimize the introduction, generation, and retention of particles inside the room and in which other relevant parameters, e.g. temperature, humidity and pressure are controlled as necessary.
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