15 results about "Quartz clock" patented technology

The invention discloses a temperature control method, device and equipment for semiconductor equipment and a storage medium, and relates to the technical field of temperature control, and the method comprises the steps: calculating the equivalent radiation temperature of the brightness of a slit cavity observation band based on the brightness of the slit cavity observation band in an edge infrared observation annular region of a rapid heat treatment furnace and the surface emissivity of a wafer; solving the equivalent temperature of the inner edge of the quartz clock cover; on the basis of the equivalent radiation temperature and the equivalent temperature of the inner edge of the quartz clock cover, net radiation heat incoming power transmitted to a wafer edge belt of the wafer by an annular slit radiation cavity in the rapid heat treatment furnace is calculated; and solving a target lamp area power replacement vector of the rapid heat treatment furnace based on the net radiation heat incoming power. According to the invention, the initiative and accuracy of wafer edge temperature control can be improved.

The utility model relates to the technical field of quartz clock installation, in particular to a quartz clock convenient to hang, which comprises a front plate, a decorative frame, a rear bottom frame, four hooks and a connecting component, the rear bottom frame is provided with an internal corner hanging hole and an external corner hanging hole, is detachably connected with the front plate and is provided with four lock hook holes, and the connecting component is connected with the decorative frame. When the decorative frame is used, the decorative frame is placed above a front plate and locked and fixed through the connecting assembly, then the four hooks are inserted into the corresponding lock hook holes respectively and then rotated to be hooked and fixed, the internal corner hanging hole is used for fixing a 90-degree internal corner of a wall root, and the external corner hanging hole is used for fixing a 270-degree external corner of a wall. Through the multi-direction hanging structure arranged on the back face, the wall clock can be installed at different positions of internal corners and external corners of a wall face, the problem that a traditional wall clock can only be installed on a flat wall face is solved, the space utilization rate is improved, and the wall clock is suitable for special scenes such as small apartments, corridor corners and stand column wrap angles.

A positioning device of an epitaxial furnace comprises a first positioning piece, a second positioning piece and a third positioning piece, the first positioning piece is fixed to the top surface of a flange through a connecting structure, and a mounting hole is formed in the positioning piece; the second positioning piece is located in the mounting hole, and the second positioning piece is used for fixing the distance between the top surface of the downstream end of the quartz cylinder and the top surface of the flange, so that the quartz cylinder is positioned at the corresponding position. The distance between the top surface of the downstream end of the quartz cylinder and the top surface of the downstream end of the quartz bell jar is fixed by arranging the first positioning piece fixed on the top surface of the flange and positioning one end in the mounting hole of the first positioning piece and positioning the other end on the top surface of the downstream end of the quartz cylinder; therefore, the position of the quartz cylinder can be quickly fixed at the corresponding position, the position of the quartz cylinder does not need to be adjusted for multiple times, the positioning accuracy of the position of the quartz cylinder is improved, and the positioning accuracy of the position of the reaction chamber and the production process efficiency are further improved.

The present disclosure provides for "Cellular Base Station Independent V2X Cellular Communication Synchronization and Initialization." A cellular vehicle-to-anything (C-V2X) [including V2V] communication system obtains positioning and time data from one or more GNSS signals and retrieves cellular synchronization information (including but not limited to 3GPP MIP and / or SIB) from a pre-loaded database and uses the information to establish a C-V2V connection with another vehicle. Synchronization can be repeated after expiration of a time period. The time period can be selected according to the positioning and speed of the vehicle. Other sources of time data can be used when GNSS signals are not available, such as an internal quartz clock or timing from a cellular base station.

The utility model relates to the technical field of quartz clock movements, in particular to a pair of quartz clock movement part cutting positioning pliers, which comprises a rotating component, an impurity collecting component and a clamping component, and is characterized in that the rotating component consists of a fixing frame, a connecting rod, a clamping block, a clamping groove, a bearing and a base, a bearing is installed on the surface of the connecting rod, and a base is arranged on the surface of the bearing. According to the quartz clock movement part cutting positioning clamp, through the arrangement of the fixing frame, the connecting rod, the clamping block, the clamping groove, the bearing and the base, when the quartz clock movement part cutting positioning clamp is used, a user manually rotates the fixing frame to drive the connecting rod to rotate in the bearing so as to conveniently adjust the cutting angle, and the clamping block fixed by the fixing frame can be clamped with the clamping groove after rotating to a designated position; and the device can be stably supported through installation of the base, the user can easily adjust the cutting angle of the part, and the whole device does not need to be frequently moved.

The utility model discloses a vehicle-mounted intelligent clock capable of being modularly installed, and belongs to the field of vehicle-mounted equipment. Comprising a display module capable of displaying electronic information, a control module with a control function and a face frame capable of being installed in an original vehicle clock groove, the display module is fixedly installed on the front face of the face frame, the control module is fixedly installed in the face frame, and the display module is connected with the control module. Compared with the prior art, by arranging the face frame capable of being installed in the original vehicle clock groove, the display module capable of displaying electronic information replaces a quartz clock of an original vehicle, a clock dial can be simulated to display time, other information can also be displayed, and therefore intelligent upgrading of the original vehicle clock is achieved; meanwhile, the elastic clamping block can be arranged on the face frame according to a clock groove of a specific vehicle type, modular installation is achieved, and upgrading operation of the vehicle-mounted clock is more convenient.

The utility model discloses an ultrathin quartz clock movement, which relates to the technical field of quartz clock movements, and comprises a two-wheel and a minute / third wheel which are rotationally connected in a mounting space formed between an upper clamping plate and a lower clamping plate; the middle clamping plate is located between the upper clamping plate and the lower clamping plate, the second wheel and the minute wheel are located at the same axial position, the fourth wheel is rotationally connected in the mounting space and located below the middle clamping plate, one side of the fourth wheel is in meshed connection with the third wheel, and one side of the third wheel is in meshed connection with the second wheel; according to the utility model, the two-wheel and the minute / third wheel are arranged at the same axial position and are reasonably arranged with the middle clamping plate, so that the axial thickness is greatly reduced, and the ultra-thinness is realized. The space formed by the upper clamping plate and the lower clamping plate provides a stable installation and rotation environment for parts. The middle clamping plates are arranged in a layered mode, so that gear trains are arranged in order, space utilization is optimized, normal meshing transmission of the gear trains is guaranteed, a movement is kept compact and stable, and timing accuracy is guaranteed.

The utility model relates to the technical field of quartz clock movements, in particular to a novel quartz clock movement, which comprises a casing, a driving bin is arranged on the casing, a time adjusting knob is arranged at one corner of the driving bin, a battery bin is arranged below the driving bin, protective corner plates matched with each other in specification are arranged at the four corners of the casing, and the protective corner plates are arranged on the casing. A protective corner plate is arranged on the front side of the battery bin, a connecting assembly is arranged between the protective corner plate and the machine shell, a bin cover matched with the battery bin in specification is arranged on the front side of the battery bin, and the bin cover is connected with the bottom of the front wall of the machine shell through an elastic rope. Therefore, damage caused by collision and friction between four corners of the casing and foreign objects is avoided, influence on appearance integrity and service life of the casing can be avoided, in addition, the sealing effect on the battery compartment is good, dust or moisture is not easy to enter the battery compartment, and the service life of the casing is prolonged. Therefore, the performance and the service life of the battery are not affected by dust or moisture.

The application discloses a temperature control method and device of a semiconductor device, equipment and a storage medium, and relates to the technical field of temperature control, and comprises the following steps: based on the slit cavity observation band brightness of the edge infrared observation annular area of a rapid thermal processing furnace and the surface emissivity of a wafer, the equivalent radiation temperature of the slit cavity observation band brightness is calculated; the equivalent temperature of the inner edge of a quartz bell jar is solved; based on the equivalent radiation temperature and the equivalent temperature of the inner edge of the quartz bell jar, the net radiation incident heat power transmitted from the annular slit radiation cavity of the rapid thermal processing furnace to the wafer edge band of the wafer is calculated; and based on the net radiation incident heat power, the target lamp area power replacement vector of the rapid thermal processing furnace is solved. The application can improve the initiative and accuracy of wafer edge temperature control.

The utility model discloses a control circuit of a quartz clock LCD calendar strip, which comprises a calendar strip main control chip MCU, a pin 1 of the calendar strip main control chip MCU is electrically connected with one end of a capacitor C8 and one end of a resistor R3, the other end of the capacitor C8 is grounded, the other end of the resistor R3 is electrically connected with a pin 56 of the calendar strip main control chip MCU, and the other end of the resistor R3 is grounded. And a pin 55 and a pin 54 of the calendar bar main control chip MCU are electrically connected with one end of a resistor R16 and one end of a resistor R2 respectively. Through cooperation of the calendar bar main control chip MCU, the battery control circuit and the memory battery BATT1, time can be memorized, the time is well adjusted when a quartz clock is produced, the current time can be immediately and automatically displayed as long as the battery is installed, the time cannot return to zero, manual adjustment of a consumer is not needed, and the production efficiency is greatly improved. And adjustment time and adjustment troubles are saved for consumers.

The utility model discloses a modularized synchronous quartz clock movement, which comprises a first module and a second module, the first module comprises a circuit board connected with a branch bracket coil component, a second bracket coil component and an optical sensing system, and the circuit board is provided with a standard port; the second module comprises a control chip used for controlling a synchronous movement, a driving chip used for driving a stepping motor, a synchronous module used for receiving a time source or other information such as weather forecast, a calendar, a lunar calendar and the like, a power supply and an integrated assembly of a management system of the power supply. The first module is provided with a standard port, the second module is provided with a fourth connecting port connected with the standard port of the first module, the first module is a complete module, and different synchronous movement groups such as an electric wave synchronous clock, a WIFI synchronous clock and a Bluetooth synchronous clock can be combined by replacing different second modules.

The utility model provides a second gear shaft anti-drop movement, the movement is provided with a housing and a travel time assembly, the travel time assembly comprises a second wheel, the second wheel is provided with a second gear shaft, the housing is provided with a positioning groove and a positioning hole of the second gear shaft, one end of the second gear shaft is rotatably assembled in the positioning groove, and the other end of the second gear shaft penetrates through the positioning hole. The second gear shaft is characterized in that the diameter of one end, assembled in the positioning groove, of the second gear shaft is larger than that of the other end of the second gear shaft; the inner diameter of the positioning groove is larger than the inner diameter of the minute hand positioning end or the hour hand positioning end. The diameter of one end, assembled in a positioning groove, of a second gear shaft is larger than that of the other end; the inner diameter of the positioning groove is larger than the diameter of the positioning hole, so that when the second gear and the second gear shaft are assembled, whether the second gear and the second gear shaft reach the correct position or not can be judged with higher efficiency, and on the other hand, the situation that the second gear shaft is pulled out of the quartz clock movement can be effectively avoided in the assembling process of a finished clock. The diameter of the large-diameter end of the second gear shaft is larger than the inner diameter of the second gear shaft hole, and the purpose of the second gear shaft is achieved through further optimization. The positioning groove is formed in the rear cover, that is, the diameter of the end part of the second gear shaft assembled on the rear cover is larger than that of other parts, so that the problem that the rear cover of the movement is easily poked in the assembling process due to the fact that the diameter of the second gear shaft of the traditional movement is too small can be effectively solved.

The application provides a crystal pulling method for improving the qualified rate of ultra-low resistance red phosphorus single crystal, and belongs to the technical field of ultra-low resistance crystal pulling methods. A CUSP magnetic field is turned on during doping and turned off after crystal pulling is completed. Meanwhile, the position of a hook-shaped magnetic field is controlled according to the position of a doped quartz bell jar. Then, during the constant-diameter process, the hook-shaped magnetic field is kept at a predetermined position below the silicon solution, and the magnetic field strength of the hook-shaped magnetic field is controlled. The argon flow, furnace pressure, crucible rotation speed, crystal rod rotation speed and crystal pulling speed are adjusted, so that the mass and heat transfer mechanism in the melt is changed from "uncontrollable strong convection" to "controllable weak convection / diffusion dominant" mode. The upward flow in the center region of the melt and the horizontal flow on the surface are weakened, the evaporation rate of phosphorus from the free liquid surface can be significantly reduced, a heavily doped red phosphorus crystal rod with Res less than or equal to 0.0001 ohm*cm can be pulled, the axial resistivity distribution of the pulled crystal rod is uniform, and the qualified rate of the crystal rod with Res less than or equal to 0.0001 ohm*cm is greater than or equal to 55%.

The application provides an epitaxial growth device and a temperature control method thereof, and belongs to the technical field of semiconductor manufacturing. The epitaxial growth device comprises: an upper quartz bell jar and a lower quartz bell jar, the upper quartz bell jar and the lower quartz bell jar are arranged to form a reaction chamber; a susceptor for placing a silicon wafer in the reaction chamber; a heating module in the reaction chamber, the heating module comprises an upper heating module arranged above the susceptor and a lower heating module arranged below the susceptor; a temperature measurement assembly for obtaining the temperature of the upper surface of the silicon wafer and the temperature of the susceptor; a power measurement assembly for obtaining the power of the heating module; and a control unit for judging whether to perform a cleaning step according to the temperature of the upper surface of the silicon wafer, the temperature of the susceptor and the power of the heating module, and cleaning the upper quartz bell jar and / or the lower quartz bell jar. The technical scheme of the application can control the temperature of epitaxial growth and ensure the quality of epitaxial products.

The utility model relates to the technical field of machining, and discloses an automatic assembling machine for a second shaft of a quartz clock movement. According to the automatic assembling machine for the second shaft of the quartz clock movement, through the arrangement of the air cylinder frame, the fixing mechanism, the L-shaped frame and the feeding mechanism, during automatic assembling, when the movement moves into the sensing range of the infrared sensor along with the conveying belt, the infrared sensor can detect the existence of the movement and send a signal to the PL controller, the PL controller sends a servo motor stop instruction, and the servo motor stops working. The two sets of air cylinders A are started at the same time, the two sets of air cylinders A move forwards to fix the machine core in the middle position, the air cylinder B drives the air cylinder C to move forwards to clamp the second shaft and then move backwards to stop at the position over the machine core while the machine core moves on the conveying belt, and therefore automatic feeding of the machine core and the second shaft is achieved. The machine core and the second shaft are rapidly and continuously conveyed to a production line, the overall production efficiency is improved, and the problems of low efficiency and errors caused by manual feeding are solved.