SCIPP CLEANROOM GUIDELINES
for 2000/2001

SCIPP has a cleanroom for fabrication of hardware that will be
used in large, long term experiments.  These type of experiments require high
quality parts with a high assurance of no flaws or contamination that
can cause failure during operation.  Experiments like GLAST and ATLAS
use a lot of semiconductor devices.  Our cleanroom is used to test, assemble,
and wire-bond these devices together.  Semiconductor chips and detectors have
microscopic input/output pads which can be covered by small pieces of dust,
which cause failures during testing and wire-bonding.  Contaminants, such as
salt ions, organic compounds, and water can affect or destroy devices.

So, SCIPP attempts to maintain an industry standard, class 10,000 cleanroom for
microelectronics testing and assembly.  This means less than 10,000 particles
larger than 0.3 per cubic foot.  There are two primary ways of keeping the
room clean, 1) Filtered air, 2) MINIMIZE DUST INPUT.

The cleanroom is divided into two area.
ATLAS CHIP TESTING               GLAST PROTOTYPING

General Guidelines
1.  Coats worn at all times
2.  Clean shoes well on sticky mats, or use shoe covers if your shoes are dirty
2.  New shoe covers every 2-3 days
3.  Clean all new equiment that you bring into the room with Hepa vacuum
     and romove oils with alcohol and wipes when needed
4.  Bring only necessary materials into room, NO backpacks.
5.  NO food or drink
6.  NO cutting, scraping, ripping, or breaking except when absolutely necessary!
7.  Clean work area with wipers and/or Hepa vacuum after dust is created
8.  Use only low lint wipers (Berkshire), NOT Kimwipes
9.  Periodically clean work surfaces and vacuum floor
10.  Replace sticky mats frequently

Guidelines for ATLAS CHIP TESTING
1.  Shoe covers, coats, and hairnets worn at all times
2.  Face masks worn while working with wafers
3.  Clean all surfaces and floor daily
4.  Be extra careful to keep contaminants away from probe station

USE COMMON SENSE
Ask questions before going ahead with work you think might contaminate
the room.

Contacts:  Gwelen Paliaga   gwelen@scipp.ucsc.edu
                Max Wilder        max@scipp.ucsc.edu
                Alec Webster      alec@scipp.ucsc.edu