CLEANROOM
Yargay
MCI’s Cleanroom Services cover the needs of new and
existing cleanrooms. So, whether you need a “deep
clean” for a newly constructed cleanroom or sustained
service to the one you are already running, Yargay
MCI’s Cleanroom Support Package tailored to your
company’s needs.
Our Cleanroom Cleaning Services help improved product
quality and yields related to a contaminated
environment - and best of all, you have peace of mind
knowing that our Specialists are specifically trained
for your critical environment.
IS
CLEANROOM CLEANING NECESSARY?
Particulates are deposited directly onto surfaces such
as floors, walls, work surfaces, and machinery. They
may not affect products at the time they are deposited,
but over time they pose an increasing threat to your
products by causing physical disturbance and eventual
breakdown. Even with modern technology and stringent
procedures to control particulate contamination, you
are still only controlling a portion of cleanroom
dangers.
CROSS CONTAMINATION is the most significant
cause of downtime and loss of yield within a cleanroom
environment. Semiconductors, Pharmaceuticals,
Manufacturing Centers and Testing Facilities all
require different operation methods and designs.
To reduce a Clean Room's risks
it is imperative that an effective cleaning program be
implemented and maintained consistently throughout the
life of the cleanroom.
Yargay
MCI can custom fit a plan for cleaning and maintenance
that will compliment your company's work flow.
Cleanrooms consist of specialized materials, chemicals,
equipment and protocol unique to each facility. As the
front-line defense in protecting the customer’s
investment, it requires trained personnel,
application-specific cleaning tools & materials, a
well-designed cleaning methodology, a verification
program and a commitment to ensure that cleanroom
maintenance demands, receive the highest priority from
all involved. These services should also be applied to
laboratories and other critical environments.
Common janitorial cleaners are
not trained or insured to clean these technical
environments according to standards and can cause
downtime

That's
why Yargay MCI makes a substantial commitment to
on-going training. Our Specialists are permanent
employees that are classroom educated with hands-on
experience at cleanroom site training facility. Our
proprietary training programs are in accordance to
IEST’s (Institute of Environmental Sciences Technology)
standards which include; cleanroom protocol, cleanroom
cleaning processes and methods, workplace and general
safety awareness and other specialized disciplines.

Cleanroom maintenance is a very niche market & Yargay
MCI has the expertise in capturing a handful of market
share as well as to develop new customer base. We are a
Member of IEST and our cleanroom housekeeping and
cleaning procedures are in accordance to the
IEST's recommended standard.
Our stringent testing procedures and highly trained
personnel are key components in eliminating all
possible threats to your cleanroom yield.

We provide:
Post construction clean-up
Yargay MCI has a fully trained staff to assist in all
aspects of construction clean-up, from your ceiling to
your floor. We understand this final phase and work
very hard to ensure proper certifications.
We invite you to view a list of online recommendations
from just a few of our satisfied clients.
Our Site Services Group can combine several
capabilities including Technical Services, Surface
Particle Detector audits and Cleanroom Cleaning to
ensure that your cleanroom runs its cleanest, defects
free.
Our initial walkthrough and consultation is provided
Free-Of-Charge. Contact our Site Services Group for a
free consultation.
For Sales Information:
sales@yargay.com.sg
CLEANROOM DANGERS
Any material, substance, particle, chemical, or other
undesirable substance that is unwanted that can
taint, pollute, defile, make impure or unclean, or
adversely effect the process or product.
Contamination can take many forms such as:
particulate, chemicals (including gases),
electro-static discharge, viables (bacteria, molds,
etc.), and other forms.
Particles are measured in microns. If you were to
slice a 1-inch cube into 25,400 equal pieces, each
slice would be 1 micron thick. (So thin that you
could not see it.)
Since cleanroom facilities contain invisible
particles that can cause defects, we need to have a
way to determine their sizes and possible sources.
These particles cannot be seen with the naked eye and
yet may cause serious loss to our client and to their
ability to manufacture devices without defects. We
measure the amount of particles in the air with a
device known as a particle counter. This helps us to
determine when to perform or restrict certain
activities. Typical
Pollutant Sizes That Cause Down Time
|
Bacteria |
.01 to 1.0 Microns |
|
Dust |
1.0 to 10 Microns |
|
Mold |
1.0 to 10 Microns |
|
Hair |
10 to 100 Microns |
|
Pollen |
10 to 100 Microns |
Following are some common sources of contamination.
This list in by no means exhaustive, but it gives you
and idea of the types of things to be aware of when you
are looking for the source of contamination.
Hair
Skin Flakes
Saliva
Make-Up
Lotions
Perfumes
Coughing / Sneezing
Excessive Movement
Perspiration
Wood
Paper
Cardboard
Tobacco Products |
Gum, Cough Drops
Packing Materials
Duct Tape
Dirty Clothing
Chemicals
Caulks and Paints
Aerosols
Ions (Rust)
Permanent Markers
Non-Cleanroom pens
Smoke
Thinners /Solvents
Food and Drink |
To combat the tremendous amount of particulate
released by the human body, cleanroom personnel are
asked to wear special garments that are restrictive and
may be uncomfortable if the working conditions
(temperature, humidity) are not carefully controlled.
People are dressed in booties, gloves, helmets, hoods
and special facemasks that are not part of a normal
experience. You are also asked to move slowly, to clean
up dirt you cannot see, and to follow practices and
procedures that may not immediately make sense.
The approach to cleanroom is designed in steps so as to
ensure that every effort has been made not to introduce
contaminants into the cleanroom.
THE HUMAN
FACTOR
"Humans are walking, breathing, waste pits from a
microbiological perspective and there is no
indication we are going to evolve into anything
cleaner."
Human dust combined with sebum will tenaciously
adhere to and contaminate surfaces, creating
contamination problems that are simultaneously
bacterial, chemical and particulate.
There is an additional complicating factor - normal
human activity. Humans breathe, sneeze, cough, talk
and move around. Body and breath temperatures cause
heat turbulence in addition to air turbulence.
People slough off huge numbers of particles a half
micron and larger and these are propelled around by
air and body movement. Some examples of how many 0.5
micron and larger particles can be released by simple
movement are shown below. Vast amounts of
contamination need to be controlled in a cleanroom
environment.
| Activity |
Particles
Release |
| Seated |
100,000 particles
per minute
|
| Moving 2 miles per
hour |
5 million
particles per minute
|
| Moving 3.5 miles
per hour |
7.5 million
particles per minute
|
| Moving 5 miles per
hour |
10 million
particles per minute |
Contaminants, Sources
and Potential Damage
|
Type |
Source |
Damage Potential |
|
Metallics |
Vacuum cleaner motor brushes, wear of A/C
units, printer wear, raised floor and grid |
Electrically conductive, magnetically attracted
to micro-circuits |
|
Carbonaceous |
Automobile exhaust, tobacco smoke, printer
toner, oxidized organic material, paper dust |
Moisture absorbent, electrically conductive,
combustible. |
|
Synthetic Fibrous Particulate |
Operator clothing, carpeted floor tiles |
Low melting point, moisture absorbent, some
type combustible , electrically conductive. |
|
Cement Dust/Crystalline |
Improper sealing or erosion of subfloor,
ionization and crystallization of cleaning
fluids, nicron wire heating elements, ion air
purifiers. |
May be propelled at high velocity into floor
cooled components, clogged filters lead to
overheating of disk media |
Our initial walkthrough and consultation is provided
Free-Of-Charge. Contact our Site Services Group for a
free consultation.
For Sales Information:
sales@yargay.com.sg |