4results about How to "Improve process precision" patented technology

The application discloses a preparation method of a fan-out type double-sided surface mounting multi-chip package and a package, and mainly comprises the following steps: after a temporary thermal bonding film is adhered to a glass wafer, TMV chips are attached in a flip-chip mode, plastic packaging is completed, and a plastic package is formed; a device surface of the chip faces one side of the temporary thermal bonding film, a surface of the plastic package is a second surface, a front wiring layer and a back wiring layer are respectively formed on a first surface and the second surface, then ball implantation is performed on the second surface after the back wiring layer is formed, an integrated passive device IPD with a micro bump is attached to the first surface after the front wiring layer is formed, reflow bonding is performed, and a stacked package is obtained, and finally, unit cutting is performed on the stacked package to obtain a single package; and the application can fully utilize upper and lower surfaces of the plastic package, carry and place more tin balls and lead-out wires, and improve utilization efficiency of the plastic package area.

The invention relates to the technical field of profile processing, and discloses a high-safety deformed steel drawing method which comprises the following steps: S1, molten steel smelting: adding deoxidation materials into molten steel to enable oxygen in steel to react with the deoxidation materials to generate a deoxidation product insoluble in the molten steel, and enabling the deoxidation product to float from the molten steel to enter slag, and meanwhile, niobium, titanium, vanadium and manganese are added into the molten steel, and the molten steel is subjected to deoxidation alloying treatment. Grain growth can be effectively inhibited when a steel billet is heated in a high-temperature section, austenite can be fully flattened without recrystallization transformation in the later rolling period, generation of fine ferrite clusters can be better facilitated, the fatigue performance can be improved, the steel has good strength and toughness, and the service life of the steel is prolonged. The process precision and the surface quality of deformed steel products can be improved, the yield and the working efficiency are improved, meanwhile, breakage in the steel drawing process can be avoided, and the steel drawing safety is improved.

The invention relates to the technical field of equipment calibration, and discloses vision-based curved needle point calibration equipment and a calibration method. The vision-based bent needle point calibration equipment comprises an automatic mechanism device, a glue barrel bent needle point device and a processing device, and the glue barrel bent needle point device is hung on the automatic mechanism device and comprises a bent needle point; the processing device is used for sending a control instruction to the automatic mechanism device; the automatic mechanism device is used for moving according to the control instruction, collecting a bent needle point image of the bent needle point and transmitting the bent needle point image to the processing device; and the processing device is also used for processing the bent needle point image based on a preset image processing algorithm, identifying the bent needle point position in the bent needle point image, and calibrating the bent needle point based on the bent needle point position in the bent needle point image. Therefore, effective and accurate equipment calibration is carried out by accurately identifying and grabbing the position of the bent needle point by utilizing a mechanical structure in cooperation with an industrial vision technology, the dispensing precision and accuracy of the dispensing equipment can be improved, and the product quality is improved.

The present invention provides a liquid metal fiber grating sensor, comprising an inner layer of liquid metal optical fiber, which adopts a layering process to naturally combine the atomization of liquid metal and the deposition of atomized molten droplets, and densely adheres the liquid metal to the fiber core as a whole; a plastic spraying process is adopted on the liquid metal cladding, and plastic powder is charged by a high-voltage electrostatic device, and the powder is uniformly adsorbed to form a powdery coating, and the PVC coating layer is very dense and effectively isolates water and other harmful substances; the protective main board and the protective sub-board are both arranged in an arc shape, so that six protective main boards and six protective sub-boards are moved to form a lantern shape, and support the inner layer of the airbag, so that after the outer shell is deformed by pressure, it is supported by the protective main board and the protective sub-board, thereby improving the pressure-bearing capacity of the outer shell, thereby improving the protection performance of the optical fiber, and improving the service life of the optical fiber.