Product Description
Easy operation
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 (Au/Pd) 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 with the plasma voltage 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.
Fast cycle times
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 specimen stage is height-adjustable over a wide range and can easily be removed to accommodate larger specimens. The system is controlled manually by a 180-second timer with 15-second resolution. Pressure and plasma current are monitored by analogue meters.
Quality coating
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 SC7620-CF 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 specimens is optimal.The SC7620 also comes complete with 1m x 12mm bore vacuum hose and fittings, and requires only the addition of a rotary pump with a capacity of 50L/m or greater - see Options and Accessories.
Additional Information
| Requirements | A 50L/m two-stage rotary pump with oil mist filter is recommended (see EK3175). If intending to use an existing rotary pump it is important that its capacity is 50L/m or greater. | ||||||||||||||||||
| Options and Accessories | Pumps
EK3175 50L/m two-stage rotary pump with oil mist filter (115/230V 50/60Hz) Carbon evaporation attachmentA carbon coating accessory (SC7620-CF) 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 tilted back and replaced with the carbon fibre head. Connection is then made to the power supply. 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 electrical isolation of the sputtering head. We also offer a ‘stand alone’ SEM carbon coater, see the Q150R.Choosing a targetGold/Palladium (Au/Pd): Gold (Au): Gold sputter coating is still widely used in many laboratories Platinum (Pt): The sputtered grain size is smaller than gold or gold/palladium. Platinum has a slower sputtering rate and is more expensive than gold or gold/palladium. Silver (Ag): Compared to the other metals, it is relatively easy to remove silver. Therefore it is useful for museum and forensic specimens. Palladium (Pd): Sometimes used instead of gold, gold/palladium and platinum for x-ray microanalysis. All targets are 57mm Ø x 0.1mm thick (unless specified otherwise)
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| Ordering Information |
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| Site Requirements | Electrical:
Ensure that a suitable mains electricity supply (110VAC - 20A or 240VAC - 13A, frequency 50/60Hz) is available. Check that the voltage label attached to the side of the cabinet is suitable for the local voltage and frequency. The units are supplied for either 230V or 110V operation at 50/60Hz. The power rating is 250VA excluding the rotary pump. The rotary pump outlet is rated at 230V at 10A or 110V at 16A. The 240V pump outlet uses either a three-pin plug (404440310) or 110V standard US plug - both supplied. Sputtering Gas: Ensure that a suitable gas supply is available, such as a commercial cylinder of argon gas (Zero Grade) fitted with a two-stage regulator, in order to deliver gas at a pressure of around 5-10psi (0.5bar). Vacuum Pump: Ensure that a suitable vacuum pump is available. The work chamber has to be evacuated to less than 10-2mbar. This can be achieved in a reasonable time (depending on the cleanliness of the chamber) using a floor-mounted 50L/m or 90L/m two-stage rotary pump. Alternatively you can use a 30L/m desk-top mounted two-stage rotary pump, preferably incorporating an anti suck-back device and fitted with an oil mist filter on the exhaust port. Where a rotary pump is used, ensure that it has been filled with oil, in accordance with the manufacturer’s instructions. The exhaust should be filtered or expelled to a safe area. All pumps we supply are fitted with an exhaust filter. Carbon evaporation attachment (optional): The SC7620-CF Carbon Accessory Power Supply can be used in conjunction with the SC7620 ‘Mini’ Sputter Coater. The units are supplied for either 230V or 110V operation at 50/60Hz. Ensure that a suitable mains electricity supply (110VAC - 20A or 240VAC - 13A, frequency 50/60Hz) is available. Check that the voltage label attached to the side of the cabinet is suitable for the local voltage and frequency. Space requirement: 340mm W x 320mm D x 310mm H (including chamber and sputtering head). Weight: 14kg. Additional space is required for the rotary pump, which can be located either on the floor or on the bench with the coater. |