ESD-sensitivity study of GMR recording heads with a flex-on-suspension head-gimbal assembly

Author

Lam, Chung F. ; Martinez, Dino ; Chang, Caleb

Author_Institution

Read-Rite Corp., Fremont, CA, USA

fYear

1999

fDate

28-30 Sept. 1999

Firstpage

391

Lastpage

404

Abstract

The goal of this paper is to share information on the study of the ESD sensitivity of giant magnetoresistive recording transducers built on flex-on-suspension (FOS) or trace-suspension assembly (TSA) head-gimbal assemblies (HGA). In order to measure the tribo-charging of these very small assemblies, a small 1 pF sensor plate was built. Using this sensor plate, the relative tribo-electric voltages of the FOS/TSA HGA were measured. A field induced charge-device-model (CDM) test, using the sensor plate, was performed on both the FOS and wire HGAs. Damage due to electromagnetic interference (EMI) was also evaluated on both the FOS and wire HGAs.

Keywords

electromagnetic interference; electrostatic discharge; giant magnetoresistance; magnetic heads; magnetoresistive devices; sensitivity; static electrification; triboelectricity; 1 pF; EMI damage; ESD; ESD-sensitivity; FOS HGAs; GMR recording heads; electromagnetic interference; field induced CDM test; field induced charge-device-model test; flex-on-suspension head-gimbal assembly; giant magnetoresistive recording transducers; relative tribo-electric voltage; sensor plate; trace-suspension assembly head-gimbal assembly; tribo-charging; wire HGAs; Assembly; Electromagnetic interference; Electrostatic discharge; Giant magnetoresistance; Magnetic field measurement; Magnetic heads; Magnetic sensors; Transducers; Voltage; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Overstress/Electrostatic Discharge Symposium Proceedings, 1999

Conference_Location

Orlando, FL, USA

Print_ISBN

1-58637-007-X

Type

conf

DOI

10.1109/EOSESD.1999.819089

Filename

819089