Browse Definitions :
Definition

clean room

A clean room (or cleanroom) is an enclosed space in which airborne particulates, contaminants, and pollutants are kept within strict limits. In industry, clean rooms are used in the manufacture and servicing of hardware such as integrated circuits ( IC s) and hard drive s. In biotechnology and medicine, clean rooms are used when it is necessary to ensure an environment free of bacteria, viruses, or other pathogens. In addition, the temperature and humidity may be controlled.

Clean room specifications for particulate matter (such as dust) are defined according to the maximum allowable particle diameter, and also according to the maximum allowable number of particles per unit volume (usually cubic meters). For non-particulate contaminants, the maximum allowable density in terms of microbes per cubic meter, or molecule s per cubic meter, is specified. Four fundamental rules apply to clean rooms. First, contaminants must not be introduced into the controlled environment from the outside. Second, the apparatus within the controlled environment must not generate or otherwise give rise to contaminants (for example as a result of friction, chemical reactions, or biological processes). Third, contaminants must not be allowed to accumulate in the controlled environment. Fourth, existing contaminants must be eliminated to the greatest extent possible, and as rapidly as possible.

In the United States, Federal Standard 209E (FED-STD-209E) was used until the end of November 2001 to define the requirements for clean rooms. On November 29, 2001, these standards were superseded by the publication of ISO specification 14644-1.

This was last updated in May 2006
SearchNetworking
  • network packet

    A network packet is a basic unit of data that's grouped together and transferred over a computer network, typically a ...

  • virtual network functions (VNFs)

    Virtual network functions (VNFs) are virtualized tasks formerly carried out by proprietary, dedicated hardware.

  • network functions virtualization (NFV)

    Network functions virtualization (NFV) is a network architecture model designed to virtualize network services that have ...

SearchSecurity
  • Domain-based Message Authentication, Reporting and Conformance (DMARC)

    The Domain-based Message Authentication, Reporting and Conformance (DMARC) protocol is one leg of the tripod of internet ...

  • data breach

    A data breach is a cyber attack in which sensitive, confidential or otherwise protected data has been accessed or disclosed in an...

  • insider threat

    An insider threat is a category of risk posed by those who have access to an organization's physical or digital assets.

SearchCIO
  • data privacy (information privacy)

    Data privacy, also called information privacy, is an aspect of data protection that addresses the proper storage, access, ...

  • leadership skills

    Leadership skills are the strengths and abilities individuals demonstrate that help to oversee processes, guide initiatives and ...

  • data governance policy

    A data governance policy is a documented set of guidelines for ensuring that an organization's data and information assets are ...

SearchHRSoftware
SearchCustomerExperience
  • recommerce

    Recommerce is the selling of previously owned items through online marketplaces to buyers who reuse, recycle or resell them.

  • implementation

    Implementation is the execution or practice of a plan, a method or any design, idea, model, specification, standard or policy for...

  • first call resolution (FCR)

    First call resolution (FCR) is when customer service agents properly address a customer's needs the first time they call.

Close