France Telecom

France Telecom Etablissement Autonome De Droit Public

Yves Nissim

Marcel Bensoussan

Jean-Louis Oudar

Elchuri K Rao

Jean Flicstein

Jean-Marie Moison

Yves Vitel

Francoise Houzay

Christian Licoppe

This invention relates to a process for producing a matrix of 'all optical' vertically-structured quantum well components. This process consists in the encapsulation of a half-structure constituted by a lower mirror (2) and an active zone (3) partially covered by a self-alignment mask (4) with a negative dielectric layer (7) whose thickness is given by the Bragg condition at the working wavelength. The encapsulated half-structure is thermally treated to induce an alloy interdiffusion (9) in the non-covered parts of the active zone, and covered with one or several negative and positive layers (10,11) so as to complete the upper Bragg mirror.

Process for producing a matrix of 'all optical' vertically-structured

This invention relates to a process for producing an electrically controllable matrix of vertically-structured quantum well components from a substrate on which a lower Bragg mirror has been 'epitaxiated', which said mirror is made up of one or several alternations of semiconductor thin layers surmounted by an active layer consisting of compound III/V-based quantum well heterostructures, characterized in that:

Process for producing an electrically controllable matrix of vertically

An antonomous container permits the vacuum transportation of any random small object and the performance of operations within a container (1) or lock (2), without it being necessary to transfer the object (10) into a working station (3). The container according to the invention is small and is provided with shielding windows (12). Therefore the object (10) can be observed within the container (1) during the operations performed within the said container (1). The latter can be transferred for supplementary operations with respect to the object (10) to the working station (3) by means of a manipulating rod (30). Application to the growth of integrated circuits in microelectronics.

Autonomous container for the vacuum treatment of an object and its

The process for the photochemical treatment of a solid material consists of exposing the latter to light pulses produced by at least one glow discharge elongated tube (4) having a rare gas under low pressure and whereof the gas, the pressure and the characteristics of the discharge are adapted to said material and its precursors, each pulse containing an extensive emission spectrum between 160 and 5000 nm. An electrical circuit with modulatable electrical characteristics (LC) makes it possible to modulate the discharge characteristics of the tube and the storage of the energy necessary for said discharge.

Growing community of inventors

Paris, France

Yves Nissim