| |
|
Quartz
Crystal Microbalance 10MHz |
| |
QCM crystal for Biotechnology and Laboratory |
| |
|
|
- High reliability microbalance measuring
- 51/U package with loose canned
- Gold coating for great aging characteristics
- High quality Scratch Dig and chip control
|
|
|
|
Description |
Specification |
Center
Frequency |
6MHz |
Quartz
Plate Thickness |
0.17mm |
Diameter |
13.7mm |
Quartz
axis |
AT
cut Fund. Thickness mode |
Electrode
Diameter |
5.11mm |
Electrode
material |
~
1000 A Gold + Cr sub-layer for better attachment |
Packing
methods |
51/U
loose canned |
Delivery |
3
weeks from P/O date |
|
¡á SHiNWOO offers blank orders.
Always welcome for material requirement from sensor manufacturers |
| SHiNWOO especially provides Quartz
Crystal Microbalance (QCM) Sensor Crystals in commercial and
research applications with competitive price. This type of quartz
crystals is supplied for system developers to coat with their
own sensitizing materials, and for other applications such as
contamination monitoring under laboratory vacuum conditions
or Electrochemical QCM (EQCM) experiments |
|
|
The quartz crystal microbalance(QCM)
is based on piezoelectric effect. The resonance frequency
of quartz crystal was influenced by thickness of AT cut
crystals. If additional material is uniformly deposited
on the face of the crystal, the additional thickness will
decrease the resonant frequency of the acoustic wave.
This frequency shift due to mass deposition may be correlated
to the absolute mass deposited via the following substituted
form of the Sauerbrey equation: |
|
¥ñq ; the density of quartz,
Aq ; area of resonance,
Nq : frequency constant for AT-cut quartz crystals
(1.668 X 105 Hz cm),
Fq :the frequency of quartz prior to deposition,
F : the frequency at any point during the deposition
process.
(Equation valid until 2% total frequency change from
starting frequency)
|
It is monitored through the frequency
shift when added coating layer. The results are appeared
to thicker the crystal, the longer the resonance wavelength.
The film density value is input in order to compensate
the density difference between the film deposited and
the density of quartz which is 2.648 g/cc.
Our crystals are plano-convex, meaning they are thicker
at the center than the edges.
Given the wide variety of coating technologies available
to the thin film engineer and scientist, it can be difficult
to determine the best monitor crystal type for a given
process. We will attempt to generally categorize processes
and the appropriate crystals. |
|
6 MHz 
