4. Equipment
4.1 RCA cleaning
RCA cleaning is a series of rinsing procedure prior to experiment with Si wafer. The purpose of the RCA clean is to remove organic contaminants (such as dust particles, grease or silica gel) from the wafer surface. There are three steps to be performed. The first step is to remove organic contaminant from surface of wafer. Second step is to remove any oxide layer
2.3 C-V graph
The measured MOS capacitance (called gate capacitance) varies with the applied gate voltage.
① Measurement of C-V characteristics
-Apply any DC bias, and superimpose a small (15 mV) ac signal
-Generally measured at 1 MHz (high frequency) or at variable frequencies between 1KHz to 1 MHz
-The dc bias VG is slowly varied to get quasi-continuous C-V characteristics
② C-V chara
3. Experiment Method
A measurement method of sample of powder form is an x-ray diffractometor(Fig. 9).
Fig. 9. An x-ray diffractometer.
3.1. Making of Sample Powder
A Sample is made a powder form. A diameter of powder has good reproducibility as smaller. But generally 10~35μm is a suitable size of sample. We must caution a deterioration by air, gas, humidity and pouri
2) Core Actives
(1) General Operation Team
- Assistance to IPC Headquarters
- Meeting registration and reception
- Operation of registration desks
- Meeting operation and assistance
- Prints designs
- Jurisdiction approval
(2) Official Event Team
- Operation of rehearsals and events
- Organizing performers and M.C.
- Banquet room system preparations
- Facility and renta
schedule.
Im on a set right now, so please leave
a message or a fax for me. Thanks.
- Favorite movie?
- Gone With the Wind.
Selznick International.
- First movie you ever saw?
- The Mummy.
Boris Karloff.
I was a young kid with my dad.
I wasnt feeling well, and my dad let
me stay up and watch Fright Night.
You know what I could never
figure out about the mummy?
The mummy used to walk
with one arm