Abstract: An actuator mounting section includes a plate member including a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate includes a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.

Abstract: An actuator mounting section includes a plate member including a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate includes a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.

Abstract: An actuator mounting section comprises a plate member includes a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate comprises a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.

Abstract: An actuator mounting section comprises a plate member includes a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate comprises a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.

Abstract: An electrical connection structure for a piezoelectric element and a head suspension with the piezoelectric element employing the electrical connection structure are provided. The electrical connection structure fixes and connects a terminal of a wiring member to an electrode of the piezoelectric element, which is arranged to face the terminal, with a conductive adhesive so that no peeling due to thermal expansion occurs between the terminal and the conductive adhesive. The electrical connection structure includes a through hole formed through the terminal and a connection part formed around the through hole on an opposite side of a piezoelectric element on the terminal. The conductive adhesive is applied and solidified so that the conductive adhesive extends between a surface of the connection part and a surface of the electrode of the piezoelectric element through the through hole.

Abstract: An element accommodation portion is formed in an electrically conductive plate member which constitutes a part of a suspension. A microactuator element comprising a piezoelectric element is located in the element accommodation portion. An electrically conductive resin member is disposed in a region covering junctions for electrically connecting the conductive plate member and the microactuator element. A pit is formed in the junction of the conductive plate member by partial-etching. A part of the conductive resin member is in the pit. A part of an outer peripheral edge of the conductive resin member is located inside an edge of the pit. The conductive resin member is covered by a cover layer.

Abstract: An electrical connection structure for a piezoelectric element and a head suspension with the piezoelectric element employing the electrical connection structure are provided. The electrical connection structure fixes and connects a terminal of a wiring member to an electrode of the piezoelectric element, which is arranged to face the terminal, with a conductive adhesive so that no peeling due to thermal expansion occurs between the terminal and the conductive adhesive. The electrical connection structure includes a through hole formed through the terminal and a connection part formed around the through hole on an opposite side of a piezoelectric element on the terminal. The conductive adhesive is applied and solidified so that the conductive adhesive extends between a surface of the connection part and a surface of the electrode of the piezoelectric element through the through hole.

Abstract: An element accommodation portion is formed in an electrically conductive plate member which constitutes a part of a suspension. A microactuator element comprising a piezoelectric element is located in the element accommodation portion. An electrically conductive resin member is disposed in a region covering junctions for electrically connecting the conductive plate member and the microactuator element. A pit is formed in the junction of the conductive plate member by partial-etching. A part of the conductive resin member is in the pit. A part of an outer peripheral edge of the conductive resin member is located inside an edge of the pit. The conductive resin member is covered by a cover layer.