Patent ID: 8618795
Filing Date: 2013-12-31
Classification: A61B,G01R,H01L,Y10T

Abstract:
1. A position and orientation sensor assembly, comprising: a magnetoresistance sensor array comprising a plurality of contact pads, wherein the plurality of contact pads are not configured to be connected by a solder connection; a plurality of metallization layers deposited on each of the plurality of contact pads, wherein each plurality of metallization layers comprises at least one solderable layer and an adhesion promoter layer disposed between the at least one solderable layer and a respective contact pad, and wherein the adhesion promoter layer comprises titanium or titanium oxide, and wherein each of the plurality of metallization layers comprises a corrosion resistance layer, wherein the corrosion resistance layer is or includes gold, and a diffusion barrier layer disposed between the at least one solderable layer and the corrosion resistance layer, and wherein the solderable layer is disposed between the adhesion promoter layer and the diffusion barrier layer; a printed circuit substrate comprising a plurality of contacts corresponding to the plurality of contact pads; and a solder material connection formed between each respective solderable layer and a corresponding contact of the plurality of contacts.