Solder balltape and method for making electrical connection between a head transducer and an electrical lead
AssigneeInternational Business Machines Corporation
InventorsSurya Pattanaik, Timothy C. Reiley, Randall G. Simmons
Life of this patent
Estimating the term…
Abstract
A solder balltape comprised of an elongated tail with a ball of solder formed at one end. A plurality of the balltape structures are positioned on a carrier strip of solder. The balltape is positioned in contact with a transducer pad on a magnetic read/write slider and an electrical lead pad. A pulse of focused laser radiation is directed at the ball part of the balltape and a right angle fillet joint is formed. A subsequent laser pulse or a sharpened blade is used to remove the tail from the newly formed fillet joint.
Claims10
A solder balltape comprising:
- an elongated tail having a distal end, a proximal end and a width e;
- and
- a ball abutting the distal end of the tail, the ball having a width d which is greater than the width e, the ball and the elongated tail being comprised of a solder material.
A solder balltape strip comprising:
- a first balltape structure comprised of a first elongated tail having a distal end, a proximal end and a width e, and a first ball abutting the distal end of the first tail, the first ball having a width d which is greater than the width e;
- a second balltape structure comprised of a second elongated tail having a distal end, a proximal end and a width e, and a second ball abutting the distal end of the second tail, the second ball having a width d which is greater than the width e;
- and
- a base strip attached to the proximal end of the first tail and to the proximal end of the second tail, the first balltape structure, the second balltape structure and the base strip all being comprised of a solder material.
A solder balltape strip comprising:
- a first balltape structure comprised of a first elongated tail having a distal end, a proximal end and a diameter e, and a first ball abutting the distal end of the first tail, the first ball having a diameter d which is greater than the diameter e, the first elongated tail comprising a length of cylindrically shaped solder wire;
- a second balltape structure comprised of a second elongated tail having a distal end, a proximal end and a diameter e, and a second ball abutting the distal end of the second tail, the second ball having a diameter d which is greater than the diameter e, the second elongated tail comprising a length of cylindrically shaped solder wire;
- and
- a support strip attached to the proximal end of the first elongated tail and to the proximal end of the second elongated tail.
Dependencies are inferred from the claim text.