Response of head suspension interconnect at 1 GHz

Author

George, Peter K. ; Jury, Jason ; Judy, Jack H.

Author_Institution

St. Cloud Univ., MN, USA

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2247

Lastpage

2249

Abstract

The results of PSPICE simulations of suspension interconnects connecting ultra-fast write drivers to a write head capable of 1 GHz electronic reversal time are reported. The suspension interconnect is modeled as a distributed lumped circuit with parameters obtained from FEM-based simulations and include the effects of eddy currents. An ideal write-current driver in parallel with a capacitor and a damping resistor are assumed. Studies of the flux rise-time and flux pulse-shape are made varying the driver impedances and the geometries of the interconnects. Rise-times as low as 1ns are demonstrated which correspond to the isolated head capability at 60 ma. Implications with respect to interconnect design are discussed

Keywords

SPICE; eddy currents; interconnections; lumped parameter networks; magnetic flux; magnetic heads; 1 GHz; FEM-based simulations; PSPICE simulations; capacitor; damping resistor; distributed lumped circuit; driver impedances; eddy currents; electronic reversal time; flux pulse-shape; flux rise-time; head flexure interconnect; head suspension interconnect response; ideal write-current driver; interconnect design; interconnects geometries; isolated head capability; ultra-fast write drivers; write head; Capacitors; Circuit simulation; Damping; Driver circuits; Eddy currents; Impedance; Integrated circuit interconnections; Joining processes; Resistors; SPICE;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800788

Filename

800788