Electrostatic Voltage Sensor

Sept. 30, 2008
TREK, INC., a designer and manufacturer of high-performance electrostatic instrumentation and high-voltage power amplifiers, recently introduced a new Electrostatic Voltage Sensor (TREK Model 875).  This new sensor is designed for in-line monitoring of electrostatic charge build-up, which if left unchecked would disrupt manufacturing processes and/or cause product degradation and early life failure of semiconductors and other charge-sensitive components.  By using TREK’s new sensor, manufacturers of electrostatic-sensitive devices can monitor production lines and other manufacturing processes in real time, thereby enabling process adjustments to be made that will improve production yields and product integrity. Applications for TREK’s new electrostatic voltage sensor include use in semiconductor manufacturing environments as well as other charge-sensitive processes, such as those found in the manufacture of electronics and other devices, including sensitive medical electronics, microelectronics, liquid crystal displays (LCDs), hard disk drives, microelectronic mechanical systems (MEMS),and in various sectors of the electronic manufacturing services (EMS) industry. Model 875 features a measurement probe with automatic calibration technology which enhances the utility of the sensor by maintaining high accuracy and speed, even as the distance between the non-contacting probe and the monitored surface changes, unlike other measurement technologies which require fixed-probe-to-surface spacing.    CONTINUED . . . . . .Designed with DIN packaging, the sensor’s enclosure mounts on 35mm DIN RAIL.  Other features include a voltage measurement range of +/- 500 V DC or peak AC, accuracy of +/- 0.5%, speed of 25 ms, and low noise of 2.5% of full scale. Buffered output voltage and current monitors (4 to 20 mA) are provided for remote monitoring and alarm purposes. The unit is powered by +24 V DC.  For product data sheet go to: www.trekinc.com/products/875.asp .  Contact TREK for pricing (quantity dependent).TREK offers other tools for measurement and management of electrostatics (and electrostatic discharge, ESD) including electrostatic voltmeters, sensors & monitors to assist with process management, ionizer performance, static charge monitoring and yield improvement. The company also offers ESD Seminars to inform and educate manufacturing engineers about ESD and the important role it plays in manufacturing processes. TREK also offers high-voltage power amplifiers specifically designed to drive reactive as well as resistive loads with high slew rates, wide bandwidth and excellent stability, for use in semiconductor, research, and piezo applications. • Power Supply Voltage: +24 V DC ±10%, Power Supply Current, 150 mA, maximum. • Power ON Indicator: A LED indicator illuminates when power is applied to the unit.