| BEIJING SEVENSTAR ELECTRONICS CO., LTD Patent applications |
| Patent application number | Title | Published |
|---|
| 20150308688 | POSITIONING DEVICE FOR HORIZONTAL EXTERNAL IGNITION APPARATUS - The invention discloses a positioning device for a horizontal external ignition apparatus. The positioning device comprises a rotating module, an expansion module, a lifting module, and a mounting member fixed at the bottom of a water cooling device of the ignition apparatus. The rotating module drives the mounting member and the external ignition chamber of the ignition apparatus to rotate around the spindle member of the rotating module and adjust the rotation angle. The expansion module adjust the lateral movement of the mounting member and the external ignition chamber along the expansion member of the expansion module. The lifting module adjust the longitudinal movement of the mounting member and the external ignition chamber. | 10-29-2015 |
| 20150153238 | THERMOCOUPLE FIXING DEVICE AND TEMPERATURE MEASURING APPARATUS - A thermocouple fixing device and a temperature measuring apparatus including a fixing joint, a sealing sleeve, a clamping piece and a locking nut sequentially sleeved outside the outer cover of the thermocouple is disclosed. The inside end of the fixing joint is fixed on the side wall of the vacuum generation chamber, the outside end of the fixing joint abuts on one end of the sealing sleeve; the two sides of the clamping piece abut on the other end of the sealing sleeve and the inside end of the locking nut, respectively; the internal threads of the locking nut are meshed with the external threads of the fixing joint; the clamping piece has a clamping element and a through hole for clamping the outer over of the thermocouple. | 06-04-2015 |
| 20150151772 | DEVICE AND METHOD FOR LOADING AND UNLOADING QUARTZ REACTION TUBE TO AND FROM SEMICONDUCTOR DIFFUSION EQUIPMENT - A loading and unloading device and method for a quartz reaction tube of a semiconductor diffusion equipment are provided; the loading and unloading device is used in combination with a lifting device of the quartz reaction tube; the lifting device has an interface flange that can be connected to the reaction tube. The loading and unloading device includes a translation drive structure, a linear guide rail, a bracket, and an auxiliary support structure to detachably fix the quartz reaction tube. During the loading procedure, the auxiliary support structure is mounted on the bracket; the front end of the translation drive structure is docked with the doorframes of the semiconductor diffusion equipment through a fixing structure, and the quartz reaction tube is docked with the interface flange of the lifting device by horizontally moving the bracket along the linear guide rail. | 06-04-2015 |
| 20140352738 | ZERO LAG DISPENSE APPARATUS - A liquid dispenser for a wafer processing system includes a supply tube with an inlet at one end and an outlet at the other end. Attached to the supply tube at the outlet end is a liquid reservoir. The liquid reservoir has a dispensing plate that has an outlet for dispensing liquid onto a wafer. There is also a dispensing valve for controlling the dispensing of the liquid. | 12-04-2014 |
| 20140352735 | ZERO LAG DISPENSE APPARATUS - A wafer cleaning method includes dispensing liquid chemicals at two flow rates to start a chemical reaction, with the second flow rate being lower than the first. The method also includes dispensing liquid waters at two flow rates to stop a chemical reaction, with the second flow rate being lower than the first. | 12-04-2014 |
| 20120325012 | FLOW METER WITH DIGITAL TEMPERATURE COMPENSATION - A flow meter is disclosed, which composes an operational amplifier, a digital potentiometer, a sensor coil, and fixed resistors R | 12-27-2012 |
