Patent ID: 8085507

Claim:
A method for forming an opening in a base-metal layer of an electrical lead suspension (ELS) to increase the impedance and date rate comprising: providing a base-metal layer having a plurality of openings, said base-metal layer comprising a single layer of metal as a foundation for said ELS to reduce a plate capacitance of said ELS; providing a dielectric layer above the base-metal layer, said dielectric layer covering a portion of said base-metal layer and the plurality of openings in said base-metal layer; and providing a signal conductive layer above the dielectric layer, said signal conductive layer comprising a plurality of solder pad portions, each and every of said plurality of solder pad portions being aligned only above said dielectric layer covering said plurality of openings in said base-metal layer; wherein the alignment of each and every of the plurality of solder pad portions only over one of the plurality of openings of said base-metal layer reduces the solder pad portion to base-metal layer capacitance and increases impedance between each of said plurality of solder pad portions and said base-metal layer.