Hutchinson Assigned Patent
HDD head suspension structures having improved gold-dielectric joint reliability
By Francis Pelletier | August 31, 2020 at 2:06 pmHutchinson Technology Inc., Hutchinson, MN, has been assigned a patent (10,748,566) developed by Christenson, Michael C., St. Louis Park, MN, and Groschen, David M., Eau Claire, WI, for a “disk drive head suspension structures having improved gold-dielectric joint reliability.“
The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A disk drive head suspension or flexure and method of manufacture. Embodiments include a portion such as a terminal pad or flying lead comprising a base layer, a dielectric layer on the base layer, a conductor layer, a seed layer between the dielectric layer and the conductor layer, and a noncorrosive metal layer on the seed layer side of the conductor layer. The seed layer has a strip that extends beyond the edge of the dielectric layer. The noncorrosive metal layer extends over the strip of the seed layer and into contact with the edge of the dielectric layer.”
The patent application was filed on May 13, 2019 (16/410,898).
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