International Business Machines Corporation

David A Smith

Jerome J Cuomo

C Richard Guarnieri

Blasius Brezoczky

Oliver C Wells

Dennis S Yee

Alexander R Taranko

Kumbakonam V Ramanathan

Srinvasrao A Shivashankar

Apparatus and method for producing diamond films. A source of free electrons is used to bombard a carbon block. Incident electrons vaporize the carbon surface, and free carbon atoms are ionized from collisions of the electrons with the carbon atoms. A collimating plate located above the carbon block includes an aperture for permitting the vaporized carbon ions to be collimated. On the other side of the collimating plate are first and second deflector plates, symmetrical with respect to the axis of the collimating plate aperture. A voltage potential therebetween produces an electrostatic field perpendicular to the axis of the aperture. Substrates located in the electrostatic field receive a carbon ion film which is essentially a diamond film structure.

Apparatus and method for producing high purity diamond films at low

A process for forming chromium dioxide thin films which are receptive to high density magnetic recording. The process comprises depositing both chromium and oxygen on a substrate by evaporative techniques and concurrently bombarding the substrate with high energy ions of at least one of the film constituents to form a latent CrO.sub.x film forming layer. The process is carried out at approximately room temperature. The as-grown latent film forming layer is subsequently heat treated by a rapid thermal anneal step which raises the temperature of the as-grown film to about 500.degree. C. The rapid thermal anneal step preferably comprises a series of at least five separte pulses over a 10-second time span. After the rapid thermal anneal, the sample is rapidly quenched to room temperature.

Process for fabricating high density disc storage device

Low-energy scanning transmission electron microscopy is achieved by using a sharply pointed electrode as a source of electrons having energies less than 10 eV and scanning the electron emitting pointed source across the surface of a self-supported thin film of material to be investigated at an essentially constant distance on the order of nanometers. The electrons transmitted through the specimen are sensed by a suitable detector and the output signal of the detector is used to control a display unit, such as a CRT display or a plotter. A scanning signal generating means simultaneously controls both the scanning of the electron emitting point source and the display unit while a separation control unit holds the distance between the point source and surface at a constant value. The electron emitting point source and associated mechanical drives as well as the specimen film and electron detector are all positioned in a vacuum chamber and isolated from vibration by a damped suspension apparatus.

Low-energy scanning transmission electron microscope

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Katonah, NY, United States of America

David A Smith