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  1. Article

    Great Clean Manufacturing Bloopers of All Time

    by Scott Mac, John B. Durkee, Ph.D., P.E., Ken Goldstein, Ph.D., Lise Laurin

    In planning for this issue, we made several industry leaders an offer they couldn't refuse. Their task: to share some of the most unforgettable stories of their careers. Their reward: phony prizes (a 5-lb. Bag O'Lint, Weekend Snood Wardrobe, com ...

  2. Article

    Think Like A Particle

    by John B. Durkee, Ph.D., P.E., Janice Baker

    I confess: I'm not certified in any way by any international, national, or regional organization as a clean manufacturing professional. I haven't taken any two-year, six-month, or three-week courses in contamination control and cleanroom procedu ...

  3. Article

    Moving a Cleanroom

    by Steve DeLane

    The burgeoning cleanroom industry has spawned numerous discussions about the ongoing maintenance and operation of cleanroom facilities and new cleanroom technology. The issues of removing tools and equipment from such facilities and transporting and reins ...

  4. Article

    Preventing and Measuring Contamination In And Out of The Cleanroom

    by Barbara KanegsbergMantosh Chawla

    BENEFICIAL CONTAMINATION    S ometimes, a little contamination can be good for you--even life-saving. This may be counterintuitive to those involved in contamination control or analytical chemistry; there is, after all, the tendency to assume the fewer co ...

  5. Article

    Cu Integrated with Low-k Dielectrics: The Future Is NOW

    by David Wang

    Speed no longer depends on feature size, but on interconnect distance. To allow the continuation of Moore's Law, IC manufacturers have increased the power of semiconductor devices by decreasing feature size. However, the limiting factor the industry ...

  6. Article

    PARTICLE TESTING FOR CLEANROOM FORMS AND LABELS

    by Greg A. Jarmin

      PARTICLE TESTING FOR CLEANROOM FORMS AND LABELS W hether your company is in the semiconductor, disk drive, pharmaceutical, or biotechnology industry, you have invested considerable time and money to ensure the yields and efficiency of your production pr ...

  7. Article

    Fundamentals of Cleaning: Drying, Part 1

    by John B. Durkee, Ph.D., P.E.

    Critical cleaning professionals know that drying is one of the latter stages of the work called cleaning. Simply put, drying is typically the step of cleaning water from parts. Many believe that "evaporation" and "drying" are the same. ...

  8. Article

    Removing Particles With A Foam Medium

    by Paul Kittle, Ph.D.

    To achieve acceptable yields, synthesis sequences must approach perfection. T he conversion of silicon wafers into useful chips is a complex, multi-step, chemical process. Unlike conventional chemical synthesis, in which intermediate isolation and purific ...

  9. Article

    Fundamentals of Cleaning: Fundamentals of Cleaning: Drying, Part 1

    by John B. Durkee, Ph.D., P.E.

    C ritical cleaning professionals know that drying is one of the latter stages of the work called cleaning. Simply put, drying is typically the step of cleaning water from parts. Many believe that "evaporation" and "drying" are the same ...

  10. Article

    Are You Practicing Good Design of Experiments? Part 3: Dynamic Surface Tension

    by John B. Durkee, Ph.D., P.E.

      As explained in our November column, with the aid of a little humor, good experiment design doesn’t require intricate equations and abstruse nomenclature. It can be as easy as answering three simple questions: What do you want to know? With what confide ...

  11. Article

    BENEFICIAL CONTAMINATION: PART 2

    by Barbara Kanegsberg, Mantosh Chawla

    BENEFICIAL CONTAMINATION: PART 2 L ast month we discussed how, under certain circumstances, a little contamination can be good for you. Commercially-produced heart valves of an alloy primarily of cobalt, chromium, molybdenum, and tungsten, Stellite 21, we ...

  12. Article

    Making Informed Choices in Wet Bench Fire Safety

    by Diana Roman

    Making Informed Choices in Wet Bench Fire Safety As the costs and consequences of failure grow, so does the list of fire-safe, approved materials. In the precision manufacturing and process industries, the term “wet bench” generally refers to cleanroom pr ...

  13. Article

    Fluoropolymers High Purity Acid Handling

    by Gary M. Dennis, David A. Seiler

    Fluoropolymers High Purity Acid Handling Fluoropolymers survive acidic environments, but extractables must be examined. For several years many companies that process or utilize high purity acids in the semiconductor industry have settled upon fluoropolyme ...

  14. Article

    Fundamentals of Cleaning: Drying, Part 2

    by John B. Durkee, Ph.D., P.E.

    L ast month we took a mechanistic look at drying of parts. We saw how drying can be done in other, and often better, ways than evaporation. Freezing, accelerated gravity drainage, and dislodgement by impingement are powerful techniques for removing large ...

  15. Article

    Sampling for Airborne Biological Contaminants: A RATIONAL APPROACH

    by ROBERT W. POWITZ, PH.D., M.PH., R.S.

    Sampling for Airborne Biological Contaminants: A RATIONAL APPROACH Nothing we do raises as many questions as microbial air sampling. While the science of microbial air sampling is fairly straightforward, somewhere along the line our approach to it has bec ...

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