CLF Series Low Frequency
Power Supplies

Stable, Reliable, Low Frequency Power
for Industrial Heating and Plasma
Processing Applications

CLF Series RF Power Supplies

Performance:
The CLF series generators provide stable process power up to 5 kW. The half-rack supplies operate at any fixed frequency from 20 to 50 kHz. The full- rack models can operate at any fixed frequency from 20 to 450 kHz or auto-tuned up to +/- 15% bandwidth. In many applications, the combination of auto-tune and excess power headroom will allow delivery of power to changing reactive loads without the need for mechanically tuned matching networks.

Applications:
The CLF series is designed to meet the performance demand in RF-driven plasma systems for semiconductor processing. Applications include etch, RIE, parallel plate, ICP, RF sputtering, CVD and PVD, as well as induction and dielectric heating processes in industrial systems.

Features:

  • Output power leveled on delivered power
  • No preventative maintenance required, maximum generator uptime
  • Protection circuits safeguard amplifiers from over-voltage, over-current and over-power operating conditions
  • Fast auto-tune circuitry on full-rack models
  • CLF 5000 CE Marked and SEMI F47 compliant

Options:

  • Wide range of input line voltages available
  • Master/Slave operation available with full-rack models

Specifications:

  • Frequency stability: +/- 1%
  • Line regulation: £ 1% for +/- 10% line
  • Load regulation: £ 3% from 10-100% setpoint before foldback
  • Power readback vs. actual: £ 2%
  • Forward/Reflected power monitoring: 0-10 VDC for 0 to full-rated output
  • Spurious output: 30 dB below fundamental typical
  • Harmonic output: 20 dB below fundamental typical
  • Noise, hum ripple: +/- 1% at all power levels typical

Half-Rack Specifications:


CLF 500 Half Rack

CLF 1000 Half Rack

Output Power:

500W

1000W

Frequency:

20 - 50 kHz fixed

20 - 50 kHz fixed

Input Line
Voltage:

100 - 130 VAC (115V);
187 - 239 VAC (208V);
single phase; 50/60 Hz

100 - 130 VAC (115V);
187 - 239 VAC (208V);
single phase; 50/60 Hz

Line Current:

7A max. (115V);
4A max. (208V)

12.5A max. (115V);
7A max. (208V)

Standard Output Connector:

Type N

Type N

Cooling:

Forced Air

Forced Air

Size:

7"H x 8"W x 16"D
(17.8cm x 20.3cm x 40.6cm)

7"H x 8"W x 16"D
(17.8cm x 20.3cm x 40.6cm)

Weight:

20 lbs.
(9.1 kg)

20 lbs.
(9.1 kg)


Full-Rack Specifications:


CLF 500 Full Rack CLF 1000 Full Rack CLF 5000 Full Rack
Output Power:

500W

1000W

5000W

Frequency:

20 - 450 kHz fixed

20 -450 kHz fixed

20 - 450 kHz fixed

Input Line
Voltage:

115/208/230 VAC;
single phase; 50/60 Hz

115/208/230 VAC;
single phase; 50/60 Hz

185-230 VAC;
three phase; 50/60 Hz

Line Current:

8A (115V); 5A (208V)

15A (115V); 9A (208V)

25A typical

Standard Output Connector:

N or C

N or C

HN

Cooling:

Forced air

Forced air

Water: 2 GPM (7.6 liters)

Size:

5.25"H x 19"W x
16.25"D
(13.3cm x 48.3cm x 41.3cm)

5.25"H x 19"W x
16.25"D
(13.3cm x 48.3cm x 41.3cm)

10.5"H x 19"W x
24"D
(26.7cm x 48.3cm x 61cm)

Weight:

50 lbs.
(23 kg)

70 lbs.
(32 kg)

200 lbs.
(91 kg)