Magnetic-head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the same

A method of manufacturing a magnetic head apparatus, comprising the steps of:

• (a) forming a wiring member having a reproducing conductive pattern connected with a reproducing element for detecting magnetic signals recorded on a recording medium by magnetoresistive effect and a recording conductive pattern connected with a recording element for recording magnetic signals on the recording medium;
• (b) attaching a slider and the wiring member to elastic support members, the slider carrying the reproducing element and the recording element;
• (c) mounting, on the elastic support members, piezoelectric elements for changing a posture of the slider by causing distortions to the elastic support members;
• (d) equalizing the electric potentials of all the electrodes of the piezoelectric elements by electrically connecting the electrodes together;
• and
• (e) cleaning the elastic support members to which the slider and the wiring member are attached while the electrodes of the piezoelectric elements have equal electric potentials.

A method of manufacturing a magnetic head apparatus comprising:

• (a) forming a wiring member having a reproducing conductive pattern connected with a reproducing element for detecting magnetic signals recorded on a recording medium by magnetoresistive effect, and a recording conductive pattern connected with a recording element for recording magnetic signals on the recording medium, and a control conductive pattern to supply control signals to the piezoelectric elements,
• wherein the wiring member is formed by forming the reproducing conductive pattern, the recording conductive pattern and the control conductive pattern on an insulating layer that overlies a conductive sheet, the conductive sheet being connected to a ground,
• wherein an aperture is formed in the insulation layer at a position adjacent to the control conductive pattern such that the conductive sheet is exposed through the aperture;
• (b) attaching a slider and the wiring member to elastic support members, the slider carrying the reproducing element and the recording element;
• (c) mounting, on the elastic support members, piezoelectric elements for changing a posture of the slider by causing distortions to the elastic support members,
• wherein at least one of the electrodes of the piezoelectric elements is grounded, and the remaining electrodes are connected with the control conductive pattern;
• (d) equalizing the electric potentials of all the electrodes of the piezoelectric elements by electrically connecting the electrodes together,
• wherein the control conductive pattern is grounded and all the electrodes of the piezoelectric elements are grounded, and
• wherein the control conductive pattern and the conductive sheet are electrically connected through the aperture;
• and
• (e) cleaning the elastic support members to which the slider and the wiring member are attached while the electrodes of the piezoelectric elements have equal electric potentials.