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Introduction to Cleanrooms.ppt

1、Introduction to Cleanrooms,Basic principles and protocols,Purpose of Clean Protocol,Promote Successful Cleanroom Operations Ensure Safety in the Clean Environment Provide Operational Conditions that Meet Process & User Needs,Perspective,The protocol provides basic awareness and general guidelines fo

2、r cleanroom users.Successful cleanroom operation relies on each users understanding, participation and self discipline.The success of each user relies on trust, understanding and shared responsibility among all users .,What is a Cleanroom?,A clean environment designed to reduce the contamination of

3、processes and materials. This is accomplished by removing or reducing contamination sources.,Principles of the Clean Environment,Air is highly (HEPA) filtered (99.99% 0.3m) Layout should minimize particle sources in filtered air stream Air flow should remove most particles generated by process,Types

4、 of Contamination,Particulate Dust, skin, hair, makeup Chemical Oil, grease, metal ions, perfume Biological Bacteria, fungi, rodents? Radiation Ultraviolet light,Particle Characteristics,50 micron particles are visible Average human hair is about 100 microns Time to fall 1 meter in still air 33 seco

5、nds for 10 micron particle 48 minutes for 1 micron particle Humans generate 1x105 particles per minute when motionless (fully gowned) Humans can generate 1x106 particles when walking in the cleanroom,Contamination Sources,People 75% Ventilation 15% Room Structure 5% Equipment 5%,Contamination Contro

6、l,Personnel Control Dress code Personal Hygiene Gowning Environmental Control Entrance and exit Materials and supplies Cleaning and maintenance Atmospheric,Dress code,No sleeveless shirts No shorts or skirts No slippers or sandals No jewelry that can puncture garments or gloves Avoid clothing that s

7、heds,Personal Hygiene,Shower each day before entry Control Dermatitis & Dandruff Do not smoke before entry No chewing gum or tobacco No Cosmetics should be worn Facial hair will need to be covered,Gowning,Proper gowning order Hair cover Hood Shoe covers Coverall Gloves Face mask Safety Glasses,Gowni

8、ng Basics,Garments should not be removed from cleanroom unless in approved container Dont walk out of the cleanroom with your garments on Change garments when soiled or showing any visible signs of wear Dont reach inside your garment while in the cleanroom,Garment Reuse and Storage,Reusable Store in

9、 Gown bin or zip lock bag Coveralls Hood Knee-high Booties (not the blue disposables) Safety Glasses Not Reusable Throw in trash Hair nets & Beard covers Blue disposable shoe covers Gloves Face mask,Entry & Exit,Enter and exit quickly Only one person may enter at a time Each user must use their own

10、access card Pass from the gowning area to the clean area slowly to reduce migration of particles between areas,Materials and Supplies,Do Not carry non-cleanroom items into the cleanroom Do not carry cleanroom items out of the cleanroom Do not use pencils or erasers Paper should be kept in a plastic

11、sleeve Do Not cut the cleanroom wipers Clean everything you carry into the cleanroom,Chemicals,Do not take new chemicals into the cleanroom without permission Always read MSDS for every chemical you use Large quantities of chemicals must be stored outside the cleanroom Chemicals inside the cleanroom

12、 should be properly stored All chemical containers should be clearly labeled with their contents and Hazard Classification Unattended chemicals and experiments should be labeled with the owners name, immediate contact number, list of all chemicals involved, and estimated time of return or completion

13、.,Chemical Handling,Always use safety carriers with glass bottles 2L and larger Do not transport chemicals in open containers Chemicals should be used inside approved hoods or under properly positioned snorkel extractors Full apron, Trionic gloves and full face shield are required for using all acid

14、s Gloves, lab coat, and safety glasses are considered minimum personal protective equipment when handling ANY chemical,Chemical Handling,In case of a small spill Inform all users in the cleanroom Clearly mark the affected area Use appropriate absorbent material to clean up the spill In case of large

15、 spill Inform all users in the cleanroom Clearly mark the affected area and evacuate Contact VEH&S and cleanroom staff immediately,Chemical Handling,Chemical waste should be properly disposed of as outlined by VEH&S No chemicals may be poured down the drains Waste containers should be properly marke

16、d as such and have a pink Hazardous Waste tag tied to them at all times If you have questions about disposal contact a staff member,In Case of Emergency,Always follow the rules set forth by VEH&S If an emergency requires evacuation, leave the cleanroom immediately, do not stop to un-gown Inform othe

17、r users before leaving,Equipment use,All users must be trained before using any equipment All equipment use should be scheduled If you are unable to use scheduled time please delete your reservation It is every users responsibility to report damaged or malfunctioning equipment It is every users resp

18、onsibility to properly operate and clean each piece of equipment that they use,Housekeeping,Every user is responsible for keeping the cleanrooms clean Always clean your workspace before leaving Dont leave or store items on or in equipment Do not set liquids on any equipment Properly store all materi

19、als before leaving the cleanroom Last one out should make sure the room is in a safe idle mode,Violations of Rules,First time Warning Report to Advisor Second time Suspension of access Report to Advisor Retraining may be required Third Offense Suspension of access Report to Advisor Access will not be renewed until an acceptable resolution is reached between Advisor and Cleanroom Manager Cleanroom Protocol re-training will be required,

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