The integrity of many products built in a cleanroom is compromised by electrostatic discharge (ESD). Semiconductors, disc drive, and flat panel manufacturers are particularly at risk when static electricity attracts contaminates. An effective ESD control program is multi-faceted and continually improving. There are many elements in an ESD program; here we will focus on the basics of training and garments.
The major generators of static electricity are people and machinery in the cleanroom or controlled environment. Cleanroom workers and engineers inadvertently promote static electricity because they do not know what causes ESD or why it is bad. According to Jan Eudy in her “Testing ESD Garments” article in Controlled Environments, engineers are often the worst offenders when it comes to ESD.
Therefore, no ESD program will be successful without separate training courses for every level of personnel affecting ESD. This includes engineers, … Read More »
This is a news item on a new facility located at the Minnesota BioBusiness Center downtown Rochester. A Gerbig Cleanroom is featured in the news!! http://ow.ly/tQgNl
Gerbig Engineering Company, Burnsville, MN has completed a procine extraction facility consisting of several ISO class 7 cleanrooms. The facility takes in special porcine organs and processes them such that they contain no porcine cells. The organ is then ready for implantation into humans.
The Miromatrix Medical technology has the potential to enable the creation of fully biological replacement organs for the human body. In addition to the Company’s internal efforts focused on the development of its first product – a biological mesh for hernia repair – scientists around the globe are working with the Company’s technology and are taking critical steps toward the creation of human organs including the liver, lung, kidney, pancreas and heart. While our biological mesh development program has been conducted internally, our intent is for current and future products to be developed both at Miromatrix … Read More »
Contaminates are attracted to charged surfaces, meaning electrostatic discharge (ESD) can devastate product, equipment, and potentially the reputation of a company. The right program to eliminate ESD will benefit productivity, profits, employees, and consumers.
Controlled Environments Magazine offers some great resources on ESD, including Richard Bilodeau, PE’s article, “Championing an ESD Control Program.”
“The bottom line to remember is that an effective ESD program must be comprehensive in its analysis and identification of ESD impact, comprehensive in its development and execution, and comprehensive in its training, effectiveness assessment, and modification against future requirements” (Bilodeau.)
Here is a summary of what he suggests.
Develop a case for the program. In order to convince the right channels to buy into the program, solid, factual, statistical data must support your cause. Your case must be compelling, and you need information to accomplish this. Bilodeau says, … Read More »
Cleanroom safety training is extensive, and rightfully so. Even the smallest of mistakes can compromise production. Materials and progress may have to be completely scrapped to start over from scratch. Therefore, remembering all the rules, even the simplest ones, is paramount.
While long-term memory can hold an indefinite amount of information, short-term memory can handle about 7 – plus or minus 2 – pieces of information at a time. Those pieces of information can be separated or chunked. For example, when remembering a10-digit phone number, the area code is often one chunk of information because it is already memorized and recognized.
In a cleanroom, there are many more than 7 pieces of information to remember, so the material needs to convert to long-term memory. Once there, the knowledge will be automatic. For example, when learning to drive, a person has … Read More »