Patent ID: 6821717
Filing Date: 2004-11-23
Classification: C25D,Y10T

Abstract:
A process to manufacture a body having a narrow mid-section, comprising:providing a part having an upper surface and coating said surface with a first layer of photoresist, having a first thickness, and then patterning said photoresist to form therein a first opening having interior walls that slope at an angle relative to said upper surface; by means of an electroless process, depositing a layer of conductive material, thereby forming a seed layer that covers all exposed surfaces; electrodepositing a first layer of metal on said seed layer; on said first metal layer, depositing and then patterning a second layer of photoresist, to a second thickness, to form a second opening that is uniformly wider than said first opening and that is symmetrically disposed around said first opening; in said second opening, electrodepositing a layer of magnetic material on said first metal layer to a third thickness that is less than said second thickness; then removing all photoresist as well as any of said seed and first metal layers that are not in contact with a surface; and then selectively removing an amount of said upper surface, thereby forming said narrow mid-section.