公开(公告)号：IN4834CHN2014A

公开(公告)日：2015-09-18

申请号：IN4834CHN2014

申请日：2014-06-25

Applicant: IBM

Inventor： DUERIG URS T ,  HOLZNER FELIX ,  KNOLL ARMIN W ,  RIESS WALTER HEINRICH

IPC: H01L21/768

Abstract: The present invention is notably directed to apparatuses and methods for positioning nano objects (20) on a surface. The method comprises: providing (S10 S50) two surfaces (15 17) including a first surface (15) and a second surface (17) in vis à vis wherein at least one of the two surfaces exhibits one or more positioning structures (16 16a) having dimensions on the nanoscale; and a ionic liquid suspension (30) of the nano objects between the two surfaces wherein each of the surfaces forms an electrical double layer with the ionic liquid suspension each of the two surfaces having a same electrical charge sign; and letting (S60) nano objects in the suspension position according to a potential energy (31) resulting from the electrical charge of the two surfaces and depositing (S70) one or more of the nano objects on the first surface according to the positioning structures by shifting minima (32) of the potential energy towards the first surface.

公开(公告)号：GB2516183B

公开(公告)日：2015-07-15

申请号：GB201418276

申请日：2013-03-05

Applicant: IBM

Inventor： DING FEI ,  DUERIG URS T ,  KNOLL ARMIN W ,  MAHRT RAINER F ,  STOEFERLE THILO HERMANN

IPC: G02B5/28 ,  G03F7/00 ,  H01S5/183

公开(公告)号：GB2518185A

公开(公告)日：2015-03-18

申请号：GB201316262

申请日：2013-09-12

Applicant: IBM

Inventor： DESPONT MICHEL ,  DUERIG URS T ,  GROGG DANIEL ,  KNOLL ARMIN W ,  KOREN ELAD

IPC: H01H1/00 ,  B81B3/00 ,  B81B5/00 ,  H01H59/00

Abstract: An electromechanical switch comprises a first electrode 11 comprising layers 21 of a first 2D layered material exhibiting a first surface, and a second electrode 12 comprising layers 22 of a second 2D layered material exhibiting a second surface vis-Ã -vis or face to face with the first surface. Each of the 2D materials is electrically conducting and an actuator actuates one of the electrodes to modify a distance between the surfaces, to modify electrical conductivity transverse to the surfaces and enable current modulation between the electrodes. The electrodes may comprise a drain and a source and the actuator a gate electrode (fig 1,13). The surfaces may move parallel to each other, actuation modifying an overlap between them or move transversely with actuation modifying a transverse distance (fig 1, d). An active region comprising one of the surfaces may be surrounded by and level with an inactive region of insulating material (fig 10B, S5) such as hexagonal boron nitride. An actuatable electrode may pivot, flex, rotate and/or slide and comprise an anchored beam. Source and drain electrodes may be side-by-side and parallel to each other and bridged by a third electrode (fig 13, 122) that can rotate (fig 15). The 2D layer may comprise graphene, graphite, BN, MoS2, WS2, MoSe2, NbSe2 NbS2, NbTe2, TaS2, TaTe2 or TiSe2. Actuation may be electrostatic, piezoelectric, magnetic, by thermal deformation, or by material stress. The switch may be micro-electromechanical or nano-electromechanical.

公开(公告)号：GB2500670A

公开(公告)日：2013-10-02

申请号：GB201205552

申请日：2012-03-29

Applicant: IBM

Inventor： KNOLL ARMIN W ,  DUERIG URS T ,  DING FEI ,  STOEFERLE THILO ,  MAHRT RAINER F

IPC: H01S5/20 ,  H01S5/183

Abstract: A method of making a micro-optics device, such as a vertical cavity surface emitting laser (VCSEL), comprising providing a layer 300 of material, patterning said layer 300 to form a curved defect 20 which may be Gaussian or parabolic in one or more planes parallel to the vertical axis, and providing at least another layer or material in contact with the curved surface 20. The additional layers may form a distributed Bragg reflector (DBR). The patterning uses nano-lithographic techniques based on scanning probe microscopy (SPM), using a nano-scale tipped probe 50 to desorb the surface molecules, which may be non-covalently or hydrogenically bonded, or unzipping (depolymerising) polymer chains. The method serves to provide lateral photon confinement, increase the quality (Q) factor of the microcavity and reduce the mode volume.