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| Reply To: | TechNet E-Mail Forum. |
| Date: | Fri, 11 Oct 2002 12:35:15 -0400 |
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RE: [TN] Clean room.Sticky floor mats at the entrances also helps a lot form dirty on the bottom of your feet. You track in
tons of dirt on the bottoms of you shoes. Especially crape sole shoes, sneakers.
----- Original Message -----
From: Brummer Chuck
To: [log in to unmask]
Sent: Friday, October 11, 2002 10:54 AM
Subject: Re: [TN] Clean room.
How "not clean enough" are you. We are producing 1 mil lines and spaces in a class 10,000 clean room. Several parts of this clean room are not really correct but it works. (the vinyl tile floor is not cleanroom adequate) At my last job, many years ago, I created a "clean space" by cutting off traffic, improving filtering (but not to the HEPA level) and putting the operators in smocks and bouffant. Just creating a clean attitude is the 60% of the battle. If your operators have not worked in a clean environment then you will have more training to do than construction.
Chuck Brummer
Siemens
Canoga Park, California
(818) 734-4930
-----Original Message-----
From: Mike Holst. [mailto:[log in to unmask]]
Sent: Friday, October 11, 2002 3:54 AM
To: [log in to unmask]
Subject: [TN] Clean room.
Good day Technet community,
I would like to draw on the experience of those in pcb fabrication
and ask for opinions or advice regarding the need for clean working
areas in the pcb shop.
Our laser plotter / phototool production area and photoresist
lamination / exposure operations have been identified as 'not clean
enough' to reliably produce 4 mil lines and spaces. We do OK
down to 5 mils.
These areas are already 'nominally' clean but separate
departments and the plan is to intergrate them into a single
upgraded operation in a new location.
If it is advised that this should to be made a classifiable clean
room, what Class level are we talking about? If not, how clean is
clean enough?
Mike Holst.
Mike Holst.
TraX Interconnect (Pty) Ltd
Tel:(++27 21)712 5011
Fax:(++27 21)712 5798
Cape Town
South Africa
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