Issue



Table of Contents

Solid State Technology

Year 2000
Issue 8

NEWS

Euro Particles


Euro Particles...

German standards updated; Operating theatre system reduces infection; Cleanroom alliance takes root ...


Inside Europe


Leicia opens facility

Leica Microsystems Inc. (Deerfield, IL) has opened a demonstration and customer training facility in Wetzlar, Germany.


Inside Europe


Extract Technology acquired

HUDDERSFIELD, ENGLAND—Bulk powder handling systems supplier Extract Technology Ltd. and its subsidiaries have been acquired by Carlisle Companies Inc. (Syracuse, NY).


Inside Europe


AMC solutions prompt ESD fight

FRANKFURT, GERMANY--As design rules drop to 0.18 micron, finding a solution to airborne molecular contamination (AMC) is proving crucial to makers of 300-mm semiconductor wafers, says Stephan Ziegart, who is responsible for the design and construction of cleanrooms for Wacker Chemie GmbH (Burghausen, Germany).


Inside Europe


UK modular cleanroom company hopes portable unit catches on

MELBOURNE, UK--Clean modules Ltd., a five-year-old manufacturer of modular cleanrooms, recently brought its first mobile cleanroom online for the Pharmacy Department of Queen Elisabeth Hospital NHS at Kings Lynn, UK--a concept company officials hope to promote worldwide.


Inside Europe


Europe views training as key to growth

EINDHOVEN, NETHERLANDS?With electronic business booming in Europe, companies are going to great lengths to find, hire and train qualified, technically savvy cleanroom workers.


Particles


Particles...

Cleanroom takes aim at Listeria; Taiwan chipmakers report little damage from quake; Wilshire Technologies signs definitive agreement of sale with Foamex Asia ...


News


What is Airborne Molecular Contamination?

AMC contaminants are not real particles anymore.


News


Best single news story

CleanRooms magazine received a silver award for "Best single news story" in the East region and took home the bronze award for the same article at the National Editorial Excellence awards ceremony held at the Embassy of Finland in Washington, DC, on June 21.


News


Consumables suppliers down

MOUNTAIN VIEW, CA?The consumables segment of the cleanrooms industry has traditionally been highly fragmented, with a large number of suppliers focusing on niche or regional markets.


News


Step right up: Get your pulse corona here

LOS ANGELES—Godfrey Harris is looking for volunteers. The managing director of Pulsatron Technology Corp., the maker of the Pulsatech device, is looking for companies that are seeking new ways of combating contamination in the manufacturing and cleanroom process.


News


ESA concerns build in 300-mm production

BERKELEY, CA—Just as electro-static discharge (ESD) has rocked circuitry, substrate and disk drive makers, electrostatic attraction (ESA)—a static field created from contaminants in the air—is increasingly becoming more of a concern, especially in the 300-mm arena.


News


OSHA cites American Xtal

FREMONT, CA?American Xtal Inc. (AXT) is making news that may impact contamination control throughout the semiconductor industry. It's just not the kind of press that any company wants.


News


PNTR opens contamination control market, but poses infrastructure challenges

MOUNTAIN VIEW, CA?The approval of permanent normalized trade relations (PNTR) with China will give manufacturers who use cleanrooms a huge new supply of labor, but it may take some time for the country's skill level and infrastructure to reach industry standards, experts say.


News


Spector takes IEST helm

MOUNT PROSPECT, IL ? Highlighting its strengths and educating the contamination control industry are two items on the agenda in the coming year for the Institute of Environment Sciences and Technology (IEST), new president Robert Spector says.


News


Industry, colleges team to fill cleanroom void

SAN JOSE, CA/BOSTON—Over the past decade the number of students enrolled in technical degree programs has dropped by at least one-third. Considering the semiconductor industry's dependence on skilled workers to staff cleanrooms, this statistic presents a problem nationwide.


DEPARTMENTS

Inventors Corner


Inventor's Corner

Atmosphere control; Exhaust system; Air shower and gown; Rope sling cover


Unfiltered


Filter model

The model of the filter supply plenum with velocity vectors has appeared in several trade journals in recent years. To my knowledge it has never received criticism similar to that offered by Mr. Charlie Middleton (CleanRooms, June 2000, p. 6).


Viewpoint


Resilience is key

Every so often a pure fact slaps you across the face, awakening you to an obvious reality. I experienced such a moment as I walked the floor at CleanRooms Europe 2000 in Frankfurt.


COLUMNS

Cleanroom Standards


Maintain the cleanliness of a cleanroom

As part of our continuing coverage of the new ISO Global Cleanroom Standards, this month we look into ISO 14644-5 "Cleanroom Operations." If you use or operate a cleanroom or plan to do so, you need to know what is in 14644-5.


Life Sciences


Prevent exposure to potent compounds

All compounds developed with the intention of becoming a pharmaceutical product are potent by definition because they will have an effect upon the human being. The effect is beneficial for those who the compound is intended to treat but can cause significant damage to individuals for which the treatment is not intended.


Electronics


Particles on surfaces: Measurement limitations

Past columns have discussed the measurement of particles entrained in various mediums, using well-established optical scattering instruments. Of more direct impact and interest to a manufacturer, however, are the particles on a product surface. And indeed commercial instruments — surface scanners — are readily available for measuring particles on surfaces, the most common instruments being those based on light scattering or, alternatively, optical imaging.


FEATURES

Features


In 300-mm contamination control, watch out for electrostatic attraction

The effects of electrostatic attraction and its role in contamination control will likely be a greater concern with 300 mm, even in ISO Class 3 (Class 1) cleanrooms; if this potential problem is not properly considered, a fab could experience a 20 percent increase in particles/wafer pass on all tools.


Special Report


Cleanroom e-commerce under construction

E-commerce emerges as a new distribution channel for cleanroom products, but some suppliers and distributors remain cautious. While many companies take a sink-or-swim approach to e-commerce, ever-prudent cleanroom suppliers and distributors are still testing the waters.


PRODUCTS

Product Comparator


Keeping track of shrinking particles

The trend toward miniaturization and other developments in modern industrial technology have necessitated unprecedented degrees of accuracy and reliability obtainable only in an extremely clean environment.


New Products


New Products

Microbial air sampler from Cole-Parmer Instrument Co.; Vinyl laminate from Lamart Corp.; Humidity transmitter from Vaisala Inc.; Pump from Tri-Clover Inc. ...