My name is Jiong and I'm the specialist
for nanofabrication and the cleanroom facility at NCMN,
and today I'm going to show you the
operating and safety procedure inside the cleanroom.
There is a card reader when you go in to access.
This is the entrance area of the cleanroom.
Beyond this door, all drinks and food are not allowed,
or the [unknown], anything that you can eat and drink
is not allowed beyond this point.
In here we have to wear some protecting equipment,
including from top to bottom.
The hair net, if you have a beard then you have to
wear the facial mask, and also the shoe covers.
This is the entrance access to the cleanroom,
and this is entrance to the service corridors.
Users are not allowed to go through these doors,
this is reserved for the service people,
and this one is for you to access the cleanroom.
Behind this door is the registration room.
There is the computer. You have to log on every time
when you enter the cleanroom.
Basically it records who is in and out inside the cleanroom.
In case anything happens we can track them back
and in case an emergency happens,
we will know who is working inside and who is not.
This area is used for wearing all this
personal protective equipment, including the hood,
the cover or gowns, and the booties.
So I will show you one by one.
There are two cabinets, one is reserved
for students and postdocs, and one is reserved for
faculty and staff.
You can find your own garment and hoodies
inside this cabinet.
For example, this is mine.
Everybody should write their name on theirs.
And this is a hoodie, this is the garment.
Let me show you how it works.
So the sequence you have to remember
is always from top to bottom.
That means you wear the hoodies first,
and then the garment. Be careful not to
drag the garment on the ground
because we always consider the ground
as the dirtiest part inside the cleanroom
because eventually the dust will fall down
in the cleanroom on the ground.
So you put both your feet through the garment
and then put yourself inside.
If you remember, put the bottom edge of the hood
into the garment and then we zip up.
So this is what it looks like
before you walk inside the cleanroom.
Once you have the garment on
you are ready to wear the booties.
The booties are here, they are shared for everyone
Choose the right size for you.
There are two medium size, two extra-large size,
and four large size.
Tie it in a way that they are crossed at the back
and tied at the front.
Now the last one is you have to wear the gloves.
We have small, medium, large, extra large.
And always have gloves on
when you are working inside the cleanroom.
Before you really walk into the cleanroom,
this is a tacky mat or sticky mat.
You have to step on it several times
to take off the floating dust
underneath your booties or shoes.
And now you are ready to go inside the real cleanroom.