Abstract: The invention relates to an evaporation cell (1) for vacuum evaporation chamber, the evaporation cell (1) comprising a crucible (5), the crucible (5) being adapted to receive a solid or liquid material to be sublimated or evaporated, heating means (3) to heat the material in the crucible, a nozzle (6) placed at an open end of the crucible (5), the nozzle (6) comprising a frustoconical portion (61) having an opening (60) adapted for the passage of a flow of evaporated or sublimated material towards the vacuum evaporation chamber, and a cover (7) placed on the nozzle (6), the cover (7) having an opening (70) arranged about the frustoconical portion (61) of the nozzle (6). According to the invention, the cover (7) has at least one frustoconical portion (71, 72, 73) arranged about the frustoconical portion (61) of the nozzle (6), the cover (7) forming a thermal barrier between the crucible (5) and the vacuum evaporation chamber.

Abstract: The invention relates to an evaporation cell (1) for vacuum evaporation chamber, the evaporation cell (1) comprising a crucible (5), the crucible (5) being adapted to receive a solid or liquid material to be sublimated or evaporated, heating means (3) to heat the material in the crucible, a nozzle (6) placed at an open end of the crucible (5), the nozzle (6) comprising a frustoconical portion (61) having an opening (60) adapted for the passage of a flow of evaporated or sublimated material towards the vacuum evaporation chamber, and a cover (7) placed on the nozzle (6), the cover (7) having an opening (70) arranged about the frustoconical portion (61) of the nozzle (6). According to the invention, the cover (7) has at least one frustoconical portion (71, 72, 73) arranged about the frustoconical portion (61) of the nozzle (6), the cover (7) forming a thermal barrier between the crucible (5) and the vacuum evaporation chamber.

Abstract: Disclosed is an evaporation device including an evaporation cell including heating element and a crucible having an upper open end and a lower closed bottom, intended to receive a load, the device being adapted to generate a flow of vapour-phase material by evaporation or sublimation of the load material. The evaporation device includes a filtering insert including an upper part having a conical opening intended to be placed at the open end of the crucible, and a lower part including, from the top to the bottom, a plate having at least one opening and one grid, the lower part being intended to be placed in the crucible between the upper part and the load. Also disclosed is an apparatus and a method for depositing a film of material on a substrate.

Abstract: An injector for a vacuum evaporation source includes an injection duct (1) having a longitudinal axis (11) and an inlet port (2) able to be connected to a vacuum evaporation source, and at least one nozzle (3) for diffusing a vaporized material, the nozzle (3) having a lateral face (4), and an upper face (5). The nozzle (3) includes a main channel (6) emerging outside the injection duct (1) and at least a lateral feeding channel (7) connecting the interior of the injection duct (1) to the main channel (6). The lateral feeding channel (7) has a lateral orifice (8) emerging inside the injection duct (1) through the lateral face (4) of the nozzle (3) for avoiding the clogging of the nozzle (3) by oxidized materials.

Abstract: An injection system for an apparatus for depositing thin layers by vacuum evaporation includes a container (4) for receiving a material to be evaporated, container heating elements adapted to evaporate the material, at least one injection ramp (1) including an inner conduit connected to the container so as to receive the evaporated material and a plurality of nozzles (3), each nozzle including at least a communication channel so as to diffuse the evaporated material into the vacuum evaporation chamber. The injection ramp (1) includes a plurality of injection modules (2a, 2b, 2c, 2d, 2e) mechanically connected to each other in series along a longitudinal direction (5), each injection module including a plurality of injection nozzles, and the injection ramp includes elements for adjusting the orientation of the injection modules about the longitudinal direction so as to align the injection nozzles along a line parallel to the longitudinal direction.

Abstract: An evaporation device for a vacuum deposition apparatus includes a crucible to contain a material to be evaporated and a bottom, a body and an opening, and a heating element surrounding at least partially the crucible body, the evaporation device being placed inside a chamber with pressure <10?3 mbar. The device also includes at least one thermal shield between the crucible body and the heating element, the thermal shield including at least one element movable with respect to the crucible and designed so the heat received by the body of the crucible at a considered point of this body conforms, at a given instant of time, to a non-constant function of the distance between the considered point and the bottom of the crucible, this function being adjustable as regards at least one degree of movability of the first element of the thermal shield with respect to the crucible.

Abstract: An injector for a vacuum vapour deposition system, includes an injection duct suitable for receiving vaporized materials from a vacuum evaporation source and a diffuser having a plurality of nozzles for diffusing the vaporized materials into a vacuum deposition chamber, each nozzle including a channel suitable for connecting the injection duct to the deposition chamber. The diffuser has a spatially varying nozzle distribution. A process for calibrating an injector and a process for manufacturing a diffuser for an injector are also described.

Abstract: An injector for a vacuum evaporation source includes an injection duct (1) having a longitudinal axis (11) and an inlet port (2) able to be connected to a vacuum evaporation source, and at least one nozzle (3) for diffusing a vaporized material, the nozzle (3) having a lateral face (4), and an upper face (5). The nozzle (3) includes a main channel (6) emerging outside the injection duct (1) and at least a lateral feeding channel (7) connecting the interior of the injection duct (1) to the main channel (6). The lateral feeding channel (7) has a lateral orifice (8) emerging inside the injection duct (1) through the lateral face (4) of the nozzle (3) for avoiding the clogging of the nozzle (3) by oxidized materials.

Abstract: A vacuum deposition apparatus comprising an enclosure adapted to receive a substrate to be treated and placed under a vacuum; at least one injector that generates a molecular beam of vapor of an organic material the injector comprising a conduit located inside the enclosure and traversing an injection wall of the enclosure to form an outer nozzle adapted in such a manner as to be hermetically connected in a detachable manner to an organic material supply, wherein the supply is a bottle whose neck is adapted to be introduced into the nozzle; an outer heating apparatus located on both sides of an injection wall and surrounding the bottle; an inner heating apparatus surrounding the conduit; and a regulatable valve permitting regulation of conductance of the injector in the enclosure.