Tech Talk Articles

Issue: Volume 61, Number 1 / December 2018 Issue

Journal of the IEST Marks 60th Anniversary
Roberta Burrows

During the past six decades, thousands of authors and reviewers have contributed to technical innovation through IEST’s flagship scientific publication, known today as the Journal of the IEST. Established in 1958 as the Journal of Environmental Engineering, primarily to report on environmental testing research, today’s Journal of the IEST covers a broad range of topics: contamination control, reliability assessment and evaluation, nanotechnology facility design, laboratory and field-testing and evaluation, and environmental instrumentation and effects. As the official publication of the IEST, the Journal serves as a permanent record of progress in the environmental sciences and is archived in the United States Library of Congress.

ISO/TC 209 Tackles Revisions of ISO 14644 Standards
Roberta Burrows, David Ensor, Jennifer Sklena

Three new cleanroom standards continue to progress through the ISO Technical Committee (TC) 209 work program of Cleanrooms and associated controlled environments, but the primary concentration of the global cleanroom experts in 2019 may be the reshaping of five current ISO 14644 standards. These and other outcomes were discussed by delegates from 20 nations during the 30th plenary meeting of ISO/TC 209 in the Hague, Netherlands in October 2018. As outlined in Table 1, ISO/TC 209 experts will be facing a varied and complex workload in the coming year.

Is There a Ticking Dust Bomb in Your Cleanroom?
Roger Diener and Morgan Polen

Selecting a non-cleanroom-approved vacuum cleaner may satisfy your budget, but the shortsighted choice brings substantial risk. Vacuum cleaners are needed throughout the cleanroom, not only for routine cleaning but also for unscheduled events that require cleanup. It is imperative that a proper cleanroom vacuum cleaner is used to avoid catastrophic results. Purchasing a non-cleanroom-approved vacuum cleaner may be a less expensive and easy choice that satisfies budgets and those responsible for reducing cleanroom operating expenses. But the risks imposed by such uninformed decisions will create a legion of potential contamination failures that can pose serious yield loss and, worse yet, field failure of products produced in the cleanroom.

Assessment of Cleanroom Suitability of Equipment and Materials by Chemical Concentration—ISO Standard Now Available for Designers, Suppliers, and Users
Berthold Düthorn

The Journal of the IEST presents the first in a series of outreach articles by ISO/TC 209 Working Group Convenors to foster promotion and education of the expanding body of ISO/TC 209 Standards.

Within the International Organization for Standardization (ISO), Technical Committee (TC) 209 is chartered with standardization of cleanrooms and associated controlled environments. A series of 15 international standards (thirteen parts under ISO 14644 and ISO 14698 Parts 1–2) has been established for controlling contamination by means of cleanroom technology. The documents address design, classification, and support operation of cleanrooms.

The recently published standard ISO 14644-15:2017 specifies assessment of the suitability of equipment and materials with respect to airborne chemical concentration. Three sampling procedures are described as well as calculation procedures for emission rate and specific emission rate in g/s for equipment or g/(m²s) for material. The emission rate and specific emission rate and proscribed inspection result are used for the cleanroom suitability assessment.


Issue: Volume 60, Number 1 / December 2017

ISO/TC 209 Launches New Cleanroom Standards and Outreach Projects
Roberta Burrows, David S. Ensor
Beyond the ISO Cleanroom Standards—Comprehensive Guidance from IEST
Roberta Burrows, Anne Marie Dixon-Heathman


Issue: Volume 59, Number 1 / November 2016

IEST Leads Development of First ISO 14644 Nanotechnology Standard
David S. Ensor, Anne Marie Dixon, Roberta Burrows


Issue: Volume 57, Number 1 / October 2014

ISO Technical Committee on Cleanrooms and Associated Controlled Environments
Enters Third Decade with New Changes on Horizon

David S. Ensor


Issue: Volume 56, Number 1 / March 2013

IEST and UGIM Working Together
John R. Weaver
Case Study: Design and Construction of the Draper Laboratory Microfabrication Center
Richard H. Morrison, Livia M. Racz, David J. Carter

Facilities Planning for Safety and Emergency Response: Bridging the Gap between Design Features and Safety Planning
Steve Schultz, Jack Paul

Financial and Operational Survey of 12 Major University Nanofabrication Facilities: A Benchmarking Study
Dennis Grimard, Lisa Jones

Retrospective: Historical Highlights of an Evolving Society

Willis J. Whitfield: Father of the Modern Cleanroom


Issue: Volume 53, Number 2 / October 2010

The Clothes Truly Did Make This Man
Heidi Parsons
Mitigating the Risk of Counterfeit Parts
Reprinted from WSTIAC Quarterly; based on a report by the Government Accounting Office


Issue: Volume 53, Number 1 / April 2010

Facts and Fiction in Cleanroom Metrology
Lothar Gail, Dirk Stanischewski


Issue: Volume 52, Number 1 / April 2009

Cornerstone Cleanroom Standards Under Revision
TWR, Multi-exciter Testing Added to New Revision MIL-STD-810G
Evaluating Clean-Air Devices


Issue: Volume 51, Number 2 / October 2008

IEST leads ISO 14644 Experts in Focus on Nanotechnology in Cleanrooms
Anne Marie Dixon, David Ensor, Roberta Burrows
Nanotech Facility Hosts ESTECH Tour


Issue: Volume 51, Number 1 / April 2008

Forging New Frontiers
Diana Granitto, Senior Editor
IEST Updates Recommended Practices to Reflect Leading-edge Methods
An In-Depth Assessment of Internal Contamination in the Wide Field/Planetary Camera: Republished from the Journal of the IEST May-June 1990 issue
Carl Maag, Jerry Millard, Mark Anderson


Issue: Volume 50, Number 2 / October 2007

New ISO Draft Standard Classifies Surface Particle Cleanliness
New Reliability Prediction Methodology Incorporates Field and Test Experience
David Nicholls


Issue: Volume 50, Number 1 / April 2007

Updated IEST-RP-CC012 a "Must Read" for Cleanroom Planners and Designers
ISO 14644-5 Offers a One-stop Guide to Cleanroom Operations
Anne Marie Dixon
Industry Responds to Proposed Changes to USP Sterile Compounding Rules