Table of Contents

Solid State Technology

Year 2005
Issue 7


Test Shows Progress In W

Test shows progress in war against SO2

MINNEAPOLIS, Minn.-Recent independent testing of filter technology developed by Donaldson Company Inc. ( offers optimism in the battle against sulfur-dioxide (SO2) contamination in semiconductor manufacturing.

Semi West Stresses Emerg

SEMI West stresses emerging technologies

July 11 marks the opening day of the 35th annual SEMICON West conference and exhibition focusing on the technology trends, market drivers, and challenges affecting the semiconductor industry.

As Scientists Make New P

As scientists make new prion discovery, antiprion technologies hit home and abroad

WASHINGTON, DC-National Institutes of Health (NIH; scientists have recently discovered that prion proteins become toxic when they latch on to the outside of cell membranes, and if a method can be found to break the fatty bond, effective treatments for such prion-induced diseases as human mad cow disease could be forthcoming.


Contamination-control conferences target Brazil, Puerto Rico markets

NASHUA, NH-Dr. Hans Schicht, internationally recognized contamination-control expert, will keynote two day-long CleanRooms conferences this fall for the Latin American and Caribbean markets. CleanRooms Brazil will be held November 14 in São Paulo, while CleanRooms Puerto Rico will take place November 17 in San Juan.

Fda Lsquogood T

FDA ‘Good Tissue Practice’ rules now in effect

ROCKVILLE, Md.-In hopes of assuring safe, contamination-free use of human cells and tissue in medical procedures, the Food and Drug Administration (FDA; has put into effect a series of new rules for “Good Tissue Practice” (GTP)-including the methods, facilities and controls used to manufacture such products as corneas, heart valves, musculoskeletal tissue, and cellular therapies.



News snippets from the world of contamination control.

Advanced Lithography Tec

Advanced lithography techniques present new contamination challenges

AUSTIN, TX-With the second quarter of 2005 already underway, research consortium SEMATECH ( is looking ahead to technical challenges facing the semiconductor industry in 2006. From lithography and various device components to metrology, manufacturing effectiveness, and environment, safety, and health (ES&H), the consortium sees significant contamination-control concerns-particularly with lithography and new materials.

Advanced Contamination C

Advanced contamination-control issues meet Sacramento’s biotech boom

SACRAMENTO, Calif.-What was once simply known as California’s state capital, where most employees worked for the government, Sacramento today is home to academic research and myriad public companies that increasingly implement cleanroom technology.


Life Sciences Usp 797 A

Life Sciences - USP 797: A work in progress

USP 797 was introduced in January 2004 as an enforceable regulation, and the document was a surprise to many involved in the compounding of sterile preparations. General chapter <797> Pharmaceutical Compounding-Sterile Preparations addresses the compounding of sterile products in any setting, including healthcare institutions, pharmacies, physician practices and other facilities in which sterile preparations are compounded.

Setting The Standard Pro

Setting the Standard: Proper personnel practices remain critical to cleanroom operations

The Institute of Environmental Sciences and Technology (IEST) is responsible for the origination, publishing and revision of approximately 35 Recommended Practices (RPs) on topics of interest and of value to the contamination-control industry. Several years ago, the need for an RP covering basic cleanroom operation and personnel practices was identified as one of these topics.

Your Market Analysis How

Your Market Analysis: How big is the cleanroom industry?

The cleanroom industry is difficult to define because in many respects it is an artificial creation around results and not specific products.

From The Editor Spread T

From the Editor: Spread the word

The need for stricter contamination-control practices and procedures for the compounding of sterile pharmaceutical preparations has long been a topic of discussion in the pages of CleanRooms. But, as of January 1, 2004, good advice and recommendations have been transformed into the first official and enforceable sterile preparation compounding requirement in the U.S.-the United States Pharmacopeia (USP) Chapter 797.

Unfiltered Challenging C

Unfiltered: Challenging cleanroom criteria

As an end user, you may not always get what you ask for when you engage a team to design a cleanroom for your facility. But this isn’t necessarily a bad thing.



Sterile cleanroom consumables management

When manufacturing in an aseptic environment, it is critical to ensure that the various cleanroom consumables, such as wipers, gloves, swabs, tubing, etc.


Wafer environment nanoparticle contamination control and defect reduction in front-end-of-line (FEOL) cleaning processes

The complexity of semiconductor device manufacturing processes is increasing as scaling of ICs continues with shrinking feature sizes. With this complexity, contamination control of nanosize particles is increasingly becoming more important during fabrication. The ITRS guidelines in Table 1 show the stringent purity requirements for liquid chemicals to be used in the manufacture of next-generation semiconductors.1

Special Report

Hazards of molecular contamination grow over space and time

More than 40 years ago, in the early 1960s, the space program began to experience firsthand the effects of molecular contamination. Problems were apparent within the optics-rich vacuum environments well before the first spacecraft was launched.


Product Spotlight.html


Cleanrooms can be quite different from one application to the next, but one aspect they all share is the need for adequate hand protection. Within the realm of hand protection, however, products can vary widely-sterility, weight, length, resistance to contaminants, and the materials from which they are made can affect how you choose one hand-protection product over another for your critical environment.

New Products.html


Each month, CleanRooms brings you a collection of the latest product innovations in the contamination-control industry.