公开(公告)号：AU599706B2

公开(公告)日：1990-07-26

申请号：AU7921187

申请日：1987-09-30

Applicant: IBM

Inventor： DUERIG URS THEODOR ,  GIMZEWSKI JAMES KAZIMIERZ ,  GRESCHNER JOHANN ,  POHL WOLFGANG DIETER ,  WOLTER OLAF

IPC: G01B7/34 ,  G01B7/00 ,  G01B21/30 ,  G01D5/04 ,  G01L1/00 ,  G01L1/04 ,  G01N13/00 ,  G01N23/00 ,  G01N37/00 ,  G01Q20/04 ,  G01Q40/00 ,  G01Q60/38 ,  G01Q70/14 ,  H01J37/26 ,  H01J37/28

公开(公告)号：AU585449B2

公开(公告)日：1989-06-15

申请号：AU7325787

申请日：1987-05-21

Applicant: IBM

Inventor： POHL WOLFGANG DIETER ,  DUERIG URS THEODOR ,  GIMZEWSKI JAMES KAZIMIERZ

IPC: G01B7/34 ,  G01B21/30 ,  G01Q20/04 ,  G01Q80/00 ,  G11B9/00 ,  G11B9/08 ,  G11B9/14 ,  G11B17/34 ,  G11B19/20 ,  G11B21/00 ,  G11B25/04 ,  H01J37/20 ,  H01J37/28 ,  H01J37/285

Abstract: The storage unit comprises an array of tunnel tips (13) arranged at tunneling distance from a storage medium (2) which is capable of permitting digital information to be written or read through variations of the tunneling current. Each tunnel tip (13) is supported on its own cantilever beam (12) extending across a cavity (14) formed in a common substrate (15). Each cantilever beam (12) as well as the bottom of each cavity (14) are covered with an electrically conducting layer (16, 18) enabling the distance between each one of the tunnel tips (13) and the surface of the storage medium (2) to be electrostatically controlled. The storage medium (2) is attached to the free end of a piezoceramic bender, the end in operation performing a circular motion so that each tunnel tip (13) scans its associated area of the storage medium (2) along a circular track.

公开(公告)号：CA2165942A1

公开(公告)日：1995-01-19

申请号：CA2165942

申请日：1993-07-06

Applicant: IBM

Inventor： GERBER CHRISTOPH ,  GIMZEWSKI JAMES KAZIMIERZ ,  REIHL BRUNO ,  SCHLITTLER RATO RUDOLF

IPC: G01N25/34 ,  G01N25/36

Abstract: A calorimetric sensor is described, in which a bimetallic lever (21, 22) is combined with a chemical sensing layer (23), e.g. a catalyst, and a sensitive device (6) to determine any deflection of the bimetallic lever. Due to its high sensitivity, the new sensor is applicable in various technical fields.

公开(公告)号：DE3679319D1

公开(公告)日：1991-06-20

申请号：DE3679319

申请日：1986-05-27

Applicant: IBM

Inventor： POHL WOLFGANG DIETER ,  DUERIG URS THEODOR ,  GIMZEWSKI JAMES KAZIMIERZ

IPC: G01B7/34 ,  G01B21/30 ,  G01Q20/04 ,  G01Q80/00 ,  G11B9/00 ,  G11B9/08 ,  G11B9/14 ,  G11B17/34 ,  G11B19/20 ,  G11B21/00 ,  G11B25/04

Abstract: The storage unit comprises an array of tunnel tips (13) arranged at tunneling distance from a storage medium (2) which is capable of permitting digital information to be written or read through variations of the tunneling current. Each tunnel tip (13) is supported on its own cantilever beam (12) extending across a cavity (14) formed in a common substrate (15). Each cantilever beam (12) as well as the bottom of each cavity (14) are covered with an electrically conducting layer (16, 18) enabling the distance between each one of the tunnel tips (13) and the surface of the storage medium (2) to be electrostatically controlled. The storage medium (2) is attached to the free end of a piezoceramic bender, the end in operation performing a circular motion so that each tunnel tip (13) scans its associated area of the storage medium (2) along a circular track.

公开(公告)号：AU7325787A

公开(公告)日：1987-12-03

申请号：AU7325787

申请日：1987-05-21

Applicant: IBM

Inventor： POHL WOLFGANG DIETER ,  DUERIG URS THEODOR ,  GIMZEWSKI JAMES KAZIMIERZ

IPC: G01B7/34 ,  G01B21/30 ,  G01Q20/04 ,  G01Q80/00 ,  G11B9/00 ,  G11B9/08 ,  G11B9/14 ,  G11B17/34 ,  G11B19/20 ,  G11B21/00 ,  G11B25/04

Abstract: The storage unit comprises an array of tunnel tips (13) arranged at tunneling distance from a storage medium (2) which is capable of permitting digital information to be written or read through variations of the tunneling current. Each tunnel tip (13) is supported on its own cantilever beam (12) extending across a cavity (14) formed in a common substrate (15). Each cantilever beam (12) as well as the bottom of each cavity (14) are covered with an electrically conducting layer (16, 18) enabling the distance between each one of the tunnel tips (13) and the surface of the storage medium (2) to be electrostatically controlled. The storage medium (2) is attached to the free end of a piezoceramic bender, the end in operation performing a circular motion so that each tunnel tip (13) scans its associated area of the storage medium (2) along a circular track.

公开(公告)号：MX168548B

公开(公告)日：1993-05-31

申请号：MX621087

申请日：1987-04-24

Applicant: IBM

Inventor： POHL WOLFGANG DIETER ,  DUERIG URS THEODOR ,  GIMZEWSKI JAMES KAZIMIERZ

IPC: G01B7/34 ,  G01B21/30 ,  G01Q20/04 ,  G01Q80/00 ,  G11B9/00 ,  G11B9/08 ,  G11B9/14 ,  G11B17/34 ,  G11B19/20 ,  G11B21/00 ,  G11B25/04

Abstract: The storage unit comprises an array of tunnel tips (13) arranged at tunneling distance from a storage medium (2) which is capable of permitting digital information to be written or read through variations of the tunneling current. Each tunnel tip (13) is supported on its own cantilever beam (12) extending across a cavity (14) formed in a common substrate (15). Each cantilever beam (12) as well as the bottom of each cavity (14) are covered with an electrically conducting layer (16, 18) enabling the distance between each one of the tunnel tips (13) and the surface of the storage medium (2) to be electrostatically controlled. The storage medium (2) is attached to the free end of a piezoceramic bender, the end in operation performing a circular motion so that each tunnel tip (13) scans its associated area of the storage medium (2) along a circular track.

公开(公告)号：BR8605250A

公开(公告)日：1987-07-28

申请号：BR8605250

申请日：1986-10-28

Applicant: IBM

Inventor： POHL WOLFGANG DIETER ,  GIMZEWSKI JAMES KAZIMIERZ ,  MURALT PAUL RENE

IPC: G11B5/60 ,  G11B21/21 ,  G11B21/12

Abstract: The method involves the steps of lowering the magnetic head (8) to within aerodynamic distance from the surface (16) of a moving recording medium, enforced further lowering of the head (8) until a tunnel current occurs across the gap between head (8) and surface (16), and maintaining said tunnel current constant by using the deviations of the current from a predetermined value (which corresponds to a certain flying height).The apparatus comprises a tunnel electrode (9) forming an integral part of the head assembly which is attached to a distance control mechanism (5) permitting the positioning of the head assembly with a one-nanometer accuracy. The tunnel electrode (9) has a very slightly beveled shoulder (45, 47) ensuring early detection of asperities approaching the head while sitting on the surface (16) of the moving recording medium (3). Grada­tion of the potential between tunnel electrode (9) and surface (16) of the recording medium (3) is used to enhance the response to asperities.