Abstract: Device and method for immersed synthesis and continuous growth of phosphides under a magnetic field are disclosed in the field of semiconductor material preparation. In particular, device and method for synthesizing and growing semiconductor phosphides by means of immersing phosphorus into a metal melt under the action of a static magnetic field are disclosed. The device includes a furnace body, an injection synthesis system and a static magnetic field generator. The method includes A, heating the crucible to melt the metal and a covering material boron oxide in the crucible; B, immersing red phosphorus into the crucible; C, applying a static magnetic field surrounding the crucible, and adjusting the temperature gradient to start the synthesis; and D, performing crystal growth after completion of the synthesis.

Abstract: The present invention relates to a process for synthesizing indium phosphide by liquid phosphorus injection method, which belongs to the field of semiconductor technology. The method comprises: converting gaseous phosphorus into liquid phosphorus through a condenser, injecting the liquid phosphorus into an indium melt while preventing phosphorus vaporization by randomly delivering a low temperature inert gas, and causing an instantaneous reaction between the liquid phosphorus and the liquid indium melt, so that an indium phosphide melt can be synthesized at a relatively low temperature, with advantages of high efficiency, high purity, precise proportioning, large capacity, aiding in the growth of a phosphorus-rich indium phosphide polycrystal and facilitating the growth of an indium phosphide monocrystal. The method includes the steps of indium cleaning, phosphorus charging, furnace loading, communication of condenser, synthesis, preparation of crystals, etc.

Abstract: Disclosed is an apparatus for preparing a large-size single crystal, which relates to the field of semiconductor material preparation, and more particularly, to an apparatus for preparing a large-size single crystal from a plurality of small-size single crystals by connecting them in solid states. The apparatus includes a hydrocooling furnace, a solid connection chamber hermetically disposed in the hydrocooling furnace, and combined fixtures provided in the solid connection chamber, wherein a plurality of crystal pieces are fixed by the combined fixtures, a top column or a stress block is used for pressing the crystal piece through the combined fixtures, a heating wire surrounding the solid connection chamber is provided in the hydrocooling furnace, a vacuum tube is communicated with the solid connection chamber, and a thermocouple is disposed close to the combined fixtures.

Abstract: A device for supervising biofilm culturing, the device including: a fixed seat including an upper end; a supervision chamber; two ultrasonic sensing probes; a first mounting chamber; a second mounting chamber disposed between the fixed seat and the supervision chamber; an ultrasonic generator; an oscilloscope; and a controller. The first and second mounting chambers are disposed at two opposite ends of the supervision chamber, respectively. The two ultrasonic sensing probes are disposed in the first and second mounting chambers, respectively. The second mounting chamber is connected to the upper end of the fixed seat. The two ultrasonic sensing probes each are respectively connected to the ultrasonic generator, the oscilloscope, and the controller successively.

Abstract: A device for supervising biofilm culturing, the device including: a fixed seat including an upper end; a supervision chamber; two ultrasonic sensing probes; a first mounting chamber; a second mounting chamber disposed between the fixed seat and the supervision chamber; an ultrasonic generator; an oscilloscope; and a controller. The first and second mounting chambers are disposed at two opposite ends of the supervision chamber, respectively. The two ultrasonic sensing probes are disposed in the first and second mounting chambers, respectively. The second mounting chamber is connected to the upper end of the fixed seat. The two ultrasonic sensing probes each are respectively connected to the ultrasonic generator, the oscilloscope, and the controller successively.