Bond pad sharing for powering multiple writers of a recording head

摘要

A slider of a magnetic recording head comprises a plurality of electrical bond pads coupled to bias sources. A first writer on the slider is coupled between first and second bond pads. A second writer on the slider is coupled between third and fourth bond pads. At least one heater is coupled between two of the first, second, third, and fourth bond pads. The first writer can have a center-tap coupled to first and second bond pads. The second writer can have a center-tap coupled to third and fourth bond pads. A first writer heater can be coupled between the center-tap of the second writer and the ground pad. A second writer heater can be coupled between the center-tap of the first writer and the ground pad.

主权项

1. An apparatus, comprising:
a slider of a magnetic recording head comprising a plurality of electrical bond pads coupled to bias sources; a first writer on the slider coupled between first and second bond pads; a second writer on the slider coupled between third and fourth bond pads; and at least one heater coupled to two of the first, second, third, and fourth bond pads.