Abstract: A takeout jig (1) includes: a support part (20) which is configured to be pulled up to take out a silicon rod (10) and which is configured to support the silicon rod (10) by clamping one or more end portions (15) of the silicon rod (10); one or more first cords (30) which are equal in number to or greater in number than the silicon rod (10) and which are configured to pull up the support part (20); and one or more second cords (40) which are configured to hold the silicon rod (10) by wrapping around the silicon rod (10).

Abstract: In order to reduce, at the time when an opening of an accommodation bag is sealed, wrinkles that occur at the accommodation bag, a sealing device (1) includes: a contact member (10) configured to be inserted into an accommodation bag (B1) accommodating a polycrystalline silicon material (S1); a sealing member configured to seal a sealing area (SE); a driving mechanism (20) configured to drive the contact member (10) so as to pull an opening (B2); and a sandwiching member (30) configured to be able to sandwich the accommodation bag (B1) for a second distance (D2) shorter than a first distance (D1) that is a length of the accommodation bag (B1) along the opening (B2) of the accommodation bag (B1).

Abstract: A hammer (1) for use in shape processing of a silicon block is a hammer for crushing a silicon block so as to carry out shape processing with respect to the silicon block, the hammer including: a handle (10) made of a resin; and a hammer head (20) fixed to the handle (10).

Abstract: A polycrystalline silicon block fracture device includes a fracturing part mechanically fracturing a polycrystalline silicon block material to produce a polycrystalline silicon fragment including a polycrystalline silicon powder having a particle size of 500 to 1000 ?m then discharging from a discharging port; a falling movement part continuous with a downstream of the fracturing part allowing said polycrystalline silicon fragment discharged from the discharging port to fall by gravity; a receiver part positioned at downstream of the falling movement part and receives the polycrystalline silicon fragment after falling through the falling movement part; and the falling movement part includes a suction removing part in which at least part of the polycrystalline silicon powder included in the polycrystalline silicon fragment is removed by suctioning to a different direction from falling direction; the suction removing part suctions at a suction rate of 1 to 20 m3/min.

Abstract: It is possible to carry out an operation to open a reactor while checking a falling over status of a silicon rod. A protective structure (200) includes: a first frame body (201) that is shaped so as to surround a bottom plate (101) of a reactor (100) in which a silicon rod (110) is contained; and a protective wall surface (204) that extends vertically upward from the first frame body (201) and that forms an storage space (210) for the silicon rod (110). The protective wall surface (204) has a mesh structure.

Abstract: A rod-shaped body (10) is used to lift a cover (103) so as to detach the cover from a bottom plate (101), together with which the cover (103) forms a reactor (100). The rod-shaped body (10) includes a first part (11) to be inserted into a bottom plate-side hole (102a) provided in a surrounding area of the bottom plate (101) and a second part (12) to be inserted into a cover-side hole (104a) disposed in a surrounding area of the cover (103) so as to face the bottom plate-side hole (102a).

Abstract: A takeout jig (1) includes: a support part (20) which is configured to be pulled up to take out a silicon rod (10) and which is configured to support the silicon rod (10) by clamping one or more end portions (15) of the silicon rod (10); one or more first cords (30) which are equal in number to or greater in number than the silicon rod (10) and which are configured to pull up the support part (20); and one or more second cords (40) which are configured to hold the silicon rod (10) by wrapping around the silicon rod (10).

Abstract: A hammer (1) for use in shape processing of a silicon block is a hammer for crushing a silicon block so as to carry out shape processing with respect to the silicon block, the hammer including: a handle (10) made of a resin; and a hammer head (20) fixed to the handle (10).

Abstract: In an embodiment of the present invention, contaminants contained in polycrystalline silicon are removed to obtain highly-pure polycrystalline silicon, with only a small amount of etching. Polycrystalline silicon is washed with use of: a first washing step of bringing fluonitric acid into contact with the polycrystalline silicon; and a second washing step of bringing a non-oxidizing chemical containing hydrofluoric acid into contact with the polycrystalline silicon that has undergone the first washing step.

Abstract: Polycrystalline silicon fragments obtained by fracturing polycrystalline silicon blocks wherein a content ratio of polycrystalline silicon powder having a particle size of 500 to 1000 ?m is 0.1 to 40 ppmw.

Abstract: Polycrystalline silicon fragments obtained by fracturing polycrystalline silicon blocks wherein a content ratio of polycrystalline silicon powder having a particle size of 500 to 1000 ?m is 0.1 to 40 ppmw.

Abstract: Polycrystalline silicon fragments obtained by fracturing polycrystalline silicon blocks wherein a content ratio of polycrystalline silicon powder having a particle size of 500 to 1000 ?m is 0.1 to 40 ppmw.

Abstract: A device for producing a cleaned crushed product of polycrystalline silicon blocks is provided with: a) a conveying belt conveyer for a crushed product of polycrystalline silicon blocks; b) a gas stream-injector for blowing away fine powders mixed in the crushed product of polycrystalline silicon blocks, the injector being placed above a travel surface of the conveying belt of the conveying belt conveyer; and c) a mesh for preventing scattering of the crushed product of polycrystalline silicon blocks, the mesh being placed between the travel surface of the conveying belt and the gas stream-injector.

Abstract: An IC device to be inspected is received in a chamber, and an IC tester Judges performance of the IC device. An electrical connection device is arranged outside the chamber and has a conductive passage electrically connecting between the IC tester and the IC device. An IC socket is retained on the electrical connection device, for having the IC device inserted therein. A magnetometric sensor is arranged close to the conductive passage of the electrical connection device, for detecting a magnetic field generated when electric current is supplied to the IC device. A temperature control device controls a temperature of the IC device. A control unit controls the temperature control device based on a signal delivered from the magnetometric sensor, to maintain the temperature of the IC device within a predetermined temperature range.

Abstract: An IC device temperature control system is provided which includes a magnetometric sensor that detects a magnetic field generated around an IC device received in a chamber for inspection when electric current is supplied to the IC device, and a converter that converts an output signal from the magnetometric sensor to information indicative of an amount of heat generated by the IC device. A temperature control device controls a temperature of the IC device, and a control unit controls the temperature control device to maintain the temperature of the IC device within a predetermined range based on the information indicative of the amount of heat generated by the IC device.