RU1830017C - Device for semiconducting powder supply - Google Patents

Abstract

Usage: the invention relates to a dosage technique. SUMMARY OF THE INVENTION: In a cylindrical cup 1, a piston 2 moves on the rod 5, powdery semiconductor material 3 is displaced from the cup 1. The rod is moved by a connecting rod mechanism 6. 1 or. (L С 00 СА) О о СО

Description

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The invention relates to a dosing technique.

The device (see drawing) is a cylindrical cup 1 with a piston 2, on which powder 3 is poured. The cylindrical cup with a piston is mounted in a vertical position and mounted on the holder A. The piston with the rod 5 is moved upward by means of the connecting rod mechanism 6, making rash of powder over the edge of the glass. Then, with further movement, the piston is in the lower limit position, again, it is filled with vBF% peanut and the new one is repeated

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... The crank mechanism is driven by a shaft 7 mounted on a holder 8. The rotation is provided by moving the pulley 9 through a shaft 10 having a cascade of various diameters, by an SD-2 11 electric motor, which is mounted in a vacuum plate. The rod 12 of the electric motor, on which the shaft 10 is located, is fixed by a bearing 13 mounted on the holder 8. The speed of the piston and, consequently, the speed of the powder can be adjusted by changing the position of the pulley 9 on the shaft 10.

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A powder of a semiconductor material (for example, indium antimonide) with a crystal diameter of 150 ... 200 μm is poured over the edge of the glass into the hopper with a funnel 14 and through the chute 15 it flows onto the evaporator 16. The uniformity of the pouring occurs when the powder level in the glass is 45 ° with vertical or horizontal planes. At a piston movement speed of 0.01 ... 0.10 mm / s, when the powder pouring area is 70 mm, the second powder flow rate is 1 ... 10 mm3.

Claims (1)

SUMMARY OF THE INVENTION A device for supplying a powdered semiconductor material comprising a material container and an expiration agent mounted in a container for movement in a vertical plane, characterized in that it is provided with a hopper with a funnel in the lower part, the container is a cylindrical cup and partially located in the hopper with a gap to its walls, and the expiration trigger includes a piston with a rod mounted with the possibility of displacing the material from the cylindrical glass and Pull it into the bunker.