Title :
Using HGA antennas to measure EMI; establishing and correlating damage thresholds of GMR heads
Author :
Perry, Bert ; Himle, Jenny ; Porter, Terry ; Boone, Wayne ; LeBlanc, Jeff
Author_Institution :
Maxtor, Longmont, CO, USA
Abstract :
This work presents a simple and effective means of evaluating production lines and laboratory spaces for EMI (electromagnetic interference) risks. Antennas were fabricated from magnetic head-gimbal assemblies (HGAs) by removing the slider and connecting a 50 /spl Omega/ coaxial cable terminated in the 50 /spl Omega/ input impedance of a 1 GHz oscilloscope. EMI sensitivity levels for heads are presented, and laboratory and production areas have been purged of some EMI risks.
Keywords :
antennas; coaxial cables; electromagnetic interference; electronic equipment manufacture; electronic equipment testing; giant magnetoresistance; magnetic heads; magnetoresistive devices; oscilloscopes; sensitivity; 1 GHz; 50 ohm; EMI evaluation; EMI measurement; EMI risks; EMI sensitivity levels; GMR heads; HGA antennas; antenna fabrication; coaxial cable termination; damage thresholds; electromagnetic interference; input impedance; laboratory spaces; magnetic head-gimbal assemblies; oscilloscope; production areas; production lines; Antenna measurements; Assembly; Coaxial cables; Electromagnetic interference; Electromagnetic measurements; Impedance; Joining processes; Laboratories; Oscilloscopes; Production;
Conference_Titel :
Electrical Overstress/Electrostatic Discharge Symposium Proceedings, 1999
Conference_Location :
Orlando, FL, USA
Print_ISBN :
1-58637-007-X
DOI :
10.1109/EOSESD.1999.819084
