SC7620 "Mini" Sputter Coater
 |
The SC7620 is a compact low cost SEM sputter coater. When combined with the optional carbon attachment CA7625F (see below) it makes the ideal low cost SEM sputtering and carbon system package. The SC7620 is
robust, easy to operate and is backed up with a 3
year warranty. |
Key features
- Low cost
- Simple operation
- Magnetic deflection sputter coating head
- Compact design
- Built to all the latest safety standards
- Carbon fibre evaporation option
- Adjustable height stage
- Easy to change sputter coating targets (Au/Pd standard)
- Latest safety features including positive break electro-mechanical interlock which ensures the sputter coating head is electrically isolated when the optional carbon attachment is in use
- Robust and reliable
- 3 year warranty
| The SC7620 is ideally suited to the budget conscious user who none the less demands quality results from an easy to use instrument. Designed for routine applications, the SC7620 uses a basic magnetron sputter head with a simple to replace disc target (gold/palladium as standard) . The head is hinged for easy operation and fitted with electrical safety interlocks. To prevent accidental damage the high voltage lead is shielded. The plasma current is variable by adjustment of the vacuum level using an argon leak valve; the plasma voltage is pre-set. For maximum sputter coating efficiency the gas injector system ensures that argon gas enters the chamber close to the plasma discharge. Venting is to argon. |
|
SC7620 sputtering head and sample stage |
|
| The 100mm (4") diameter Pyrex cylinder is mounted on an aluminium collar and sealed with 'O' rings. The small vacuum chamber means pump down times and cycle times are fast; it also allows a small economical rotary pump to be used. The sample stage is height adjustable over a wide range and can easily be removed to accommodate larger samples. The system is controlled manually by a 180 second timer with 15 second resolution. Pressure and plasma current are monitored by analogue meters. The SC7620 will deposit a quality coating and has the advantage of simple operation, ensuring reliability and suitability for general use. It can be simply converted to deposit carbon by the addition of an optional carbon evaporation attachment, consisting of a switchable voltage power supply and a carbon fibre head. (see CA7625F below). The carbon attachment includes an additional glass cylinder. This is taller than the standard sputter coater cylinder and ensures that the distance between the carbon fibre and the samples is optimal. The SC7620 comes complete with one metre of 12mm bore vacuum hose and fittings and requires only the addition of a rotary pump with a capacity of 25 litres / minute or greater (see "options and accessories). |
|
Requirements
| A 50 l/m two-stage rotary pump with oil mist filter is recommended (see E5005F). If intending to use an existing rotary pump it is important that its capacity is 50 l/m or greater. |
|
Options and accessories
Carbon coating
| A carbon coating accessory (CA7625F) which consists of an evaporation power
supply and carbon fibre head is available.
. Fitting the optional carbon evaporation attachment is simple. The normal sputtering head is hinged back and replaced with the carbon fibre head. Connection is then made to the power supply. Please note that in order to ensure that the exposed sputtering head cannot be powered when the add-on carbon head is under vacuum, a positive-break mechanical interlock ensures electrically isolation of the sputtering head. Note: we also offer a "stand alone" SEM carbon coater – the CC7650
|
|
Choosing a target
Gold / Palladium: Supplied as standard. Has the same properties
(sputtering rate, secondary electron yield, cost) as gold but the grain
size is smaller.
Gold: gold sputter coating is still widely used in many laboratories
Platinum: The sputtered grain size is smaller than gold or gold / palladium.
Slower sputtering rate, more expensive than gold or gold / palladium.
Silver: Compared to the other metals, it is relatively easy to remove silver.
Therefore, useful for museum and forensic samples.
Palladium:Sometimes used instead of gold, gold / palladium and platinum
for x-ray microanalysis.
::
