Abstract: The device (420) is for supporting substrates in a reaction chamber of an epitaxial reactor; it comprises: a disc-shaped element (422) having a first face (422A) adapted to be upperly positioned when the device (420) is being used and a second face (422B) adapted to be lowerly positioned when the device (420) is being used, said disc-shaped element (422) being adapted to receive a gas flow (F) to rotate the device (420) about an axis (X) thereof, a substrate-supporting element (424) in a single piece with said disc-shaped element (422) and preferably adjacent to said first face (422A), and a shaft (426) coaxial to said disc-shaped element (422), in a single piece with said disc-shaped element (422) and having a first end (426A) at said second face (422B); said shaft (426) has at a second end (426 B) thereof at least a protrusion (428 A, 428B, 428C) whose rotation is adapted to be detected by a pyrometer (430) or a thermographic camera.

Abstract: The reaction chamber (100A) is used for a reactor for the deposition of semiconductor material on a substrate (62); it extends in a longitudinal direction and comprises a reaction and deposition zone (10) which extends in the longitudinal direction; this zone (10) is defined by susceptor elements (21A, 21B, 21C, 22A, 22B, 31, 32) adapted to be heated by electromagnetic induction; a first susceptor element (21A, 21B, 21C, 22A, 22B) is opposite to a substrate support element (61) of the chamber and has a hole (20) which extends in the longitudinal direction along its whole length; the first susceptor element (21A, 21B, 21C, 22A, 22B) has a non-uniform cross section that depends on its longitudinal position.

Abstract: The reaction chamber (100) is used for a deposition reactor of layers of semiconductor material on substrates; it comprises a tube (110) made of quartz and having a cylindrical shape and adapted to be positioned in use so that its axis (111) is vertical; the tube (110) has a cylindrical inner interspace (112) which extends along the entire length of the tube (110) and which is adapted to accommodate a flowing liquid; the chamber (100) further comprises an annular closing element (120) made of quartz and fixed to a first lower end of the tube (110) so as to close the interspace (112) preventing the liquid from flowing out of the interspace at the bottom; at the top, the closing element (120) has an annular recess (122) facing the interspace (112) so that the flowing liquid can reach the recess (122) at the bottom; the chamber (100) further comprises a set of internal conduits (130) internal to the interspace (112), wherein said internal conduits (130) extend from the first lower region of the tube (110) till a

Abstract: The reaction chamber (100) is designed for a reactor (100) for deposition of layers of semiconductor material on substrates; it comprises a tube (110) and an injector (20) and a holder (30); the tube (110) is made of quartz and has a cylindrical or prismatic shape and surrounds a reaction and deposition zone; the injector (20) is arranged to inject precursor gases into the reaction and deposition zone; the holder (30) is arranged to support a substrate in the reaction and deposition zone during deposition processes; graphite susceptor elements (10, 40, 50) are located inside the tube (110) for heating the reaction and deposition zone and components inside the reaction and deposition zone; an inductor system (60, 70) is located outside the tube (110) for providing energy to the susceptor elements (10, 40, 50) by electromagnetic induction; a rotating element (80) in the form of a cylindrical or prismatic tube is located inside the reaction and deposition zone and surrounds the injector (20).

Abstract: Disclosed is an inductor for electromagnetic induction heating of a plasticizing cylinder, including at least one coil, made of an electric conductor, arranged on an internal support element of thermal insulation towards the cylinder, made of non-magnetic and non-conductive material. The device provides an even number of two or more identical coils, each having an internal terminal and an external terminal, wherein: the winding direction is the same for all coils; the winding axis of the coils is perpendicular to the axis of the cylinder to be heated; the coils are mounted symmetrically to the cylinder axis to be heated and angularly equidistant; and the adjaent external or internal terminals of the coils are connected to each other and the internal or external terminals are electrically powered, so as to generate an electromagnetic field transverse to the cylinder.

Abstract: A toggle mold closure assembly for injection presses includes: fixed, mobile and reaction planes, mounted on columns; a control unit of the toggle, having four pairs of levers, arranged symmetrically at two sides, in upper and lower parts of the structure, interconnected by a pin and to the reaction plane and mobile plane by respective pins; and an actuation unit of the control element. The control unit is placed on the axis of the toggle in the middle of the pairs of main side levers, which have an outward movement. The control unit is connected, by control connecting rods, to the levers of the toggle connected to the reaction plane, and is placed between the central connection pin of the levers and the reaction plane. The control unit is provided with heads for connection to the connecting rods external to the reaction plane and turned towards the reaction plane.

Abstract: A toggle mould closure assembly for injection presses includes: fixed, mobile and reaction planes, mounted on columns; a control unit of the toggle, having four pairs of levers, arranged symmetrically at two sides, in upper and lower parts of the structure, interconnected by a pin and to the reaction plane and mobile plane by respective pins; and an actuation unit of the control element. The control unit is placed on the axis of the toggle in the middle of the pairs of main side levers, which have an outward movement. The control unit is connected, by control connecting rods, to the levers of the toggle connected to the reaction plane, and is placed between the central connection pin of the levers and the reaction plane. The control unit is provided with heads for connection to the connecting rods external to the reaction plane and turned towards the reaction plane.

Abstract: The plant is suitable to produce a semiconductor film (8) having a desired thickness and consisting substantially of a compound including at least one element for each of the groups 11, 13, and 16 of the periodic classification of elements. The plant comprises an outer case (1) embedding a chamber (2) divided into one deposition zone (2a) and one evaporation zone (2b), which are separated by a screen (3) interrupted by at least one cylindrical transfer member provided with actuation means rotating about its axis (5). To the deposition zone (2a) a magnetron device (7) is associated, for the deposition by sputtering of at least one element for each of the groups 11 and 13 on the side surface (?) of the cylindrical member that is in the deposition zone (2a). To the evaporation zone (2b) a cell (10) for the evaporation of at least one element of the group 16 is associated, and such an evaporation zone (2b) houses a substrate (8a) on which the film (8) is produced.

Abstract: The plant is suitable to produce a semiconductor film (8) having a desired thickness and consisting substantially of a compound including at least one element for each of the groups 11, 13, and 16 of the periodic classification of elements. The plant comprises an outer case (1) embedding a chamber (2) divided into one deposition zone (2a) and one evaporation zone (2b), which are separated by a screen (3) interrupted by at least one cylindrical transfer member provided with actuation means rotating about its axis (5). To the deposition zone (2a) a magnetron device (7) is associated, for the deposition by sputtering of at least one element for each of the groups 11 and 13 on the side surface (?) of the cylindrical member that is in the deposition zone (2a). To the evaporation zone (2b) a cell (10) for the evaporation of at least one element of the group 16 is associated, and such an evaporation zone (2b) houses a substrate (8a) on which the film (8) is produced.

Abstract: An injection molding machine (1) comprising a fixed mold half (4) mounted on a fixed plate (3) integral with the machine frame (2) and a moveable mold half (9) mounted on a moveable plate (8) supported in translation on the machine frame (2) and guided along guide columns (5) integral with the fixed plate (3), to pass from a mold closing position to a mold opening position, and a closing and clamping system (10) comprising clamping means, integral with the moveable plate (8) and acting on a portion of the guide columns (5) to lock the moveable plate (8) in the closing position.

Abstract: An ejector device (200) for ejecting articles for injection molding machines for plastic materials comprising a movable mold-holding plate (13) supporting a mold half (20) defining a profile whereon a molded article (21) is formed, and moved by a double toggle mechanism comprising connecting rods (18) connected to the movable mold-holding plate (13); the device (200) for ejecting articles comprising a movable ejector plate (3) supported in translation by means of supporting columns (4) fixed to the movable mold-holding plate (13), and a pin (2) connected to the movable ejector plate (3) and acting on an ejector table (1) arranged into a mold half cavity (51) to favor ejection of the molded article (21), the movable ejector plate (3) being moved by means of lever mechanism driven by a ball screw (35) actuated by an electric motor (40).

Abstract: An injection moulding machine (1) comprising a fixed mould half (4) mounted on a fixed plate (3) integral with the machine frame (2) and a moveable mould half (9) mounted on a moveable plate (8) supported in translation on the machine frame (2) and guided along guide columns (5) integral with the fixed plate (3), to pass from a mould closing position to a mould opening position, and a closing and clamping system (10) comprising clamping means, integral with the moveable plate (8) and acting on a portion of the guide columns (5) to lock the moveable plate (8) in the closing position.

Abstract: An electric injection assembly for injection presses for plastic materials, comprising a plasticating screw (5) that performs a translational feed movement during injection of the plastic material into a mould cavity and a rotary movement around its own axis and a rotary translational movement of rotation around its own axis and retraction during the plasticating stage of the plastic material, the plasticating screw being connected to a drive screw (30) comprising two sections (30A, 30B) with threads having the helix in opposite directions, each of the sections (30A, 30B) engaging in respective screw nuts (31A, 31B) driven in rotation by respective electric motors (32A, 32B) through respective reduction units (33A, 33B).

Abstract: An ejector device (200) for ejecting articles for injection molding machines for plastic materials comprising a movable mold-holding plate (13) supporting a mold half (20) defining a profile whereon a molded article (21) is formed, and moved by a double toggle mechanism comprising connecting rods (18) connected to the movable mold-holding plate (13); the device (200) for ejecting articles comprising a movable ejector plate (3) supported in translation by means of supporting columns (4) fixed to the movable mold-holding plate (13), and a pin (2) connected to the movable ejector plate (3) and acting on an ejector table (1) arranged into a mold half cavity (51) to favor ejection of the molded article (21), the movable ejector plate (3) being moved by means of lever mechanism driven by a ball screw (35) actuated by an electric motor (40).