Development of a high current ion modification system suitable for ultra-high vacuum.

A Novel ±0.5V Ultra High Current Drive and Output Voltage Headroom Current Output Stage with Very High Output Impedance

A novel ultra-high compliance, low power, very accurate and high output impedance current output stage (COS) with extremely high output current drive capability is proposed in this paper. The principle of operation of this unique structure is discussed, its most important formulas are derived and its outstanding performance is verified by HSPICE simulation in TSMC 0.18µm CMOS, BSIM3, and Level4...

A Novel Very High Performance CMOS Current Mirror with extremely low input and ultra high output resistance

In this paper a novel very high performance current mirror is presented. It favorably benefits from such excellent parameters as: Ultra high output resistance (36.9GΩ), extremely low input resistance (0.0058Ω), low output (~0.18V) and low input voltage (~0.18V) operation, very low power consumption (20μW), very low offset current (1pA), ultra wide current dynamic range (150dB), and ultra high a...

High Efficiency and Low Cost LINAC System Design Suitable for High Energy Ion Implanters

A new radio frequency (rf) linear accelerator (LINAC) system with high efficiency has been developed by AIBT. The general designs of such a rf LINAC system are briefly discussed. This system includes a plurality of resonators each including an inductor circuit that is connected to at least two rf electrodes. Detailed designs of a system where two of the adjacent rf electrodes are connected to t...

Rolling Contact Fatigue in Ultra High Vacuum

A Novel Method for High Current Vacuum Arc Interruption Using Externally Applied Ultra High Axial Pulsed Magnetic Field

Axial Magnetic Field (AMF) is widely used in vacuum interrupters to keep the arc in the diffused mode. With increasing axial magnetic field, the multiple arc mode extends to higher arc currents. In this mode of arc, the fault current can be easily interrupted due to fast recovery of the diffused vacuum arc. The magnetic field amplitudes considered in the preceding studies are all less than hund...