CLEANROOM/CLEANZONE PROTOCOL Sid Calayag PRESENTED BY:
CLEANROOM/CLEANZONE PROTOCOL
Sid Calayag
PRESENTED BY:
1. Understand the requirements and prohibitions of production areas
2. Apply the proper discipline
TRAINING OBJECTIVES
Item 1
• Cleanroom Basics
Item 2
• Cleanroom at Construction Stage
Item 3
• Cleanroom at Operational Stage
AGENDA
Item 1
•Cleanroom Basics
CLEANROOM BASICS
What is a Clean room?A clean environment designed to
reduce the contamination of processes and materials.
This is accomplished by removing or reducing contamination sources.
CLEANROOM BASICS
A cleanroom is a controlled environment that regulates the following:
particulate matters in the air( i.e. dust and other particles)
temperature humidity pressure contaminants from people, machines, etc.
DEFINITION OF TERMS
An enclosed space employing control over theparticulate matter in the air, temperature, humidity,pressure and human contributed contaminants.
A defined space in which the concentration of airborne particulate matter, including human contaminants is controlled to specified limits.
CLEANZONE
CLEANROOM
CLEANROOM BASICS
CEILING GRID
GLASS WINDOWS
WALL PANELS
CONDUCTIVE FLOORS OR RAISED FLOOR
BASIC COMPONENTS OF CLEANROOM
AIR SHOWERS
FULL GLASS WINDOWS
PASS BOX
ANTE ROOM
BASIC COMPONENTS OF CLEANROOM
Item 2
•Cleanroom at Construction Stage
BUILDING/CONSTRUCTION
CIVIL WORKS
ELECTROMECH WORKS
CLEANROOM AT CONSTRUCTION STAGE
CIVIL WORKS• INTERIOR WORKSColumnsSlabsWallsSanding and
PaintingSecondary Ceiling
and InstallationPainting Works
ELECTRO-MECH’L WORKS
• INTERIOR WORKSPiping WorksEquipment
InstallationSupport System
InstallationLightingsFire Protection
ENCLOSURE
• Enclosure of area and issuance of access route
• To remove the generated dust before it spread
• OTHERSMain Feeder lineOther Electromechanical Works and etc.
CLEANROOM STAGES OF CONSTRUCTION
Wear Shoes for indoor use
Helmet
helmet
Shoes for Indoor use
CONSTRUCTION STAGE APPARELS & PPE
BASIC CLEANLINESS REQUIREMENT
Materials To be stored in a clean & orderly
manner Others
Dirty Work to be isolated Sweep daily Wet with sawdust
5S AND HOUSEKEEPING
Every user is responsible for keeping the cleanroom clean
Always clean your workspace before leaving
Don’t leave or store items on or in equipment
Do not set liquids on any equipment Properly store all materials before
leaving the cleanroom Last one out should make sure the
room is in a safe idle mode
Item 3
•Cleanroom at Operational Stage
LAUNDRY: Garments shall be changed and washed at least
once a week.
4. static dissipative smocks
3. Facemask
1. head cap / headgear
5. In-plant shoes/ safety shoes
2. Safety Glasses
CLEANROOM APPARELS & PPE
Cleanroom:
REQUIRED COMPLETE APPAREL
LAUNDRY: Garments shall be changed and washed at least
once a week.
2. facemask3. bunny suit 4. booties over in-plant shoes
1. hair net (before hood)
ULTRA CLEAN SUIT & APPARELS
Entrance Control Air lock room Sticky/Tacky mats
Materials & Tools clean materials to be brought into the building
clean materials before entering
BASIC CLEANROOM PROTOCOL
CLEANROOM PRACTICES
1. All workers must attend an orientation,
2. Chemicals must be approved3. Equipment and materials must be
cleaned4. Moving must be done with care5. Eating, smoking and the chewing
gums is prohibited6. Housekeeping
CLEANROOM REQUIREMENT
No visible dust No rust, no peeling paint No sand/pebbles No fiber/hair, wood chips No plastic debris, carbon/paper No styro foam chips No presence of food
Implementing Clean Production Environment
Based on 4 principles Prevent entry of dust Prevent dust generation Remove dust Do not accumulate
Air shower operationalRoom pressure control Proper RH control, etcCleaning implemented
Operational Stage
Implementation and Maintenance of Clean Production EnvironmentImplementation and Maintenance of Clean Production Environment
Improving workers level of consciousness is very importantImproving workers level of consciousness is very important
Based on 4 principles Prevent entry of dust Prevent dust generation Remove dust Do not accumulate
Positive pressure/barricade
Clean suit/eqpt layout Apply appropriate filter Choose anti-static materials
Planning Stage
Apply energy saving systemsApply energy saving systems
CLEANROOM REQUIREMENT & PRACTICES
1. airtight ducting system 2. install HEPA filters at all supply side3. positive pressure beyond HEPA
① Do not allow dusts to flow into the ducting system
1. installation of air shower at anteroon
① Do the cleaning(people and things) at the
anteroom before bringing inside the cleanroom
1. wearing of clean suits2. workflow/layout to reduce unnecessary movements 3. use of finishing materials that generate few particles4. No bringing of useless things inside
② Minimize dust generation in the room
1. eliminate unnecessary horizontal surfaces2. Use round ends instead of angles3. do not install unnecessary equipment that vibrates
④ Do not pile-up dusts or scatter these particles
1. provide localized exhaust near sources of contaminants2. make indoor air distribution as laminar as possible
③ Remove immediately generated particles
APPLICATION OF 4 PRINCIPLES
・ install air shower/pass box
- prevent dust from entering during opening/closing of doors
-dusting off before entry
・ pressurize the room(cleanroom indoor) to prevent entry of dust from outside
air shower pass box
+pressure against outside
・ provide sticky mat
place mat near entry points to prevent dust under the shoes from entering
Prevent entry of dust basic control measures(1)
JACA > 10Pa ( 1 . 02
mmAq ) FDA
> 0 . 05 inAq (1 . 27
mmAq ) ISO13408-1
10~ 15 Pa
① no surface breakup/detachment
② smooth surface with few gaps
③ durable/wear resistant
④ static electricity is hard to generate
⑤ difficult to be stained but easy to clean
⑥ acid/alkali resistant
⑦ low outgassing properties
cleanroom interior finish
bunny suit smack gown
< Effects of Cosmetic Products >
10
100
1,000
10,000
100,000
[ p
art
icle
s/c
ft/m
in ]
female ( 20’s ) male, thick beard ( 30’s ) male, slight beard ( 40’s) male, slight beard(40’s )
bare after washingface
lotion/facialfoundation
eye shadow/cheek blush on
source ~実践 LSI工場清浄化技術 (1985)
Prevent entry of dust basic control measures(2)
wear cleanroom suits/gownban use of cosmeticsuse of low/non-particle
generating finishing materials
people manufacturing equipment tools processes/utilities(CDA, N2, DI water) office equipment and supplies(computers,
papers) molds, fungi, bacteria structural materials(paint peels, outgassing)
CLEANROOM CONTAMINANT
外気
Dust from room and outdoor air (OA) can mix
filter selection and recirculating air volume
calculation
Ensure particle concentration within room specification
particle sources
Exhaust
Recirculating
airFilter
Return air
Room
RoomExhaustOA
Direct supply of clean air into the machine
Ensure particle concentration within room specification
Dust removal by supplying clean air into the equipmentDust removal by room air
recirculation
Dust Removal by Filtration
Daily Cleaning Regular Cleaning
・ once per week/per month or semiannually
・ done by service cleaners
・ cleaning including moving the equipment
・ done during shutdown
・ once a day/after each shift
・ wet type cleaning(using water)
・ sticky mat changing
・ dry type cleaning by vacuum cleaner
・ cleaning done during operation
CLEANING THE CLEANROOM
1. Prevent entry of dust.
2. Minimize sources that generate dust.
3. Remove the dust generated in the room before they spread.
4. Do not accumulate and scatter the dust.
4 Principles of Maintaining Cleanliness
End of presentation
Prepared for TI Construction GroupBy: Sid Calayag
References: TI Cleanroom Basic Cleanroom Orientation
Basic Cleanroom Orientation