Principal of control at operation stages

A cleanroom is any given contained space where provisions are made to reduce particulate contamination and control other environmental parameters such as temperature, humidity and pressure. The key component is the High Efficiency Particulate Air (HEPA) filter that is used to trap particles that are 0.3 micron and larger in size. All of the air delivered to a cleanroom passes through HEPA filters, and in some cases where stringent cleanliness performance is necessary, Ultra Low Particulate Air (ULPA) filters are used.

Workforce

Provide training & test for cleanroom concept
Follow procedure to go in/out of cleanroom
Wear C/R gown to go in/out of cleanroom
No personnel with cold, rhinitis or bronchitis
Make sure everyone follow the rule

Material

Unwrap packing
Wiping
Through air shower room
No chemical product in clear room
No scattering in cleanroom
No wood and paper product store in cleanroom

Tools

Unwrap packing
Wipe 0.5% IPA at buffer clean area
Relocation tools (roller and steel plate) made of SUS or Teflon
Moving thing according the two C/R setting route

Equipment

Wiping
Protect
No peeling paint and corrosion tools
Entering through A/S
Accessory
Unwrapping goods
Wiping
Entering through A/S
No non-replacement item

Stationary

C/R/ No photocopy document in cleanroom
No pencil, eraser, crayon & pen. Ball pen is allow
No marker pen
No non cleanroom applicable document, notebook and manuals
No cutting, tearing & wiping in cleanroom
No blackboard & chalk

Communication device

No cell phone, DECT
No radio equipment
No pager

Others

Fire extinguisher, wiring, firefighting equipment and etc.
Cleanliness tools
Garbage and waste disposal

Prohibited acts in clean room

Keep door open all the time
No eating & smoking
No running
No off clothing
No scratching
No harangue
No abnormal action
No make-up

Resources & Articles

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