Patent ID: 9308641
Filing Date: 2016-04-12
CPC Classification: B25J,B81B,B81C,B82Y,H01F

Claim Text:
1. A process for fabricating a magnetic tweezer on a surface of a substrate, the magnetic tweezer comprising two jaws, the two jaws being magnetostatically coupled, the two jaws being interconnected by a deformable hinge arranged at a first side of each of the two jaws, each of the two jaws having a second side that is opposite the first side, the two jaws extending along a longitudinal direction between the first and the second side, the deformable hinge extending along a transverse direction that is perpendicular to the longitudinal direction, the two jaws configured to be moved one with relation to the other under the action of a magnetic field, the process comprising: forming a stack on the surface of the substrate, the stack comprising at least two magnetic thin layers between which a sacrificial layer is arranged, the at least two magnetic thin layers being magnetostatically coupled, a first of the at least two magnetic thin layers forming at least part of a first of the two jaws and a second of the at least two magnetic thin layers forming at least part of a second of the two jaws, the stack presenting a longitudinal section equal to a desired longitudinal section for the magnetic tweezer to be fabricated, the stack presenting a lateral edge that defines the first side of each of the two jaws; depositing the deformable hinge onto at least the lateral edge of the stack; and after the depositing step, eliminating the sacrificial layer.