6results about How to "Reduce white point" patented technology

The application belongs to the field of polyvinyl chloride functional film materials, and particularly relates to a temperature-variable light-adjusting PVC film with multiple physical barrier functions and a preparation method. The PVC film comprises a PVC continuous phase, temperature-variable light-adjusting functional particles dispersed in the PVC continuous phase, lamellar barrier fillers arranged in the direction of the film surface, and an interface compatible locking component. The temperature-variable light-adjusting functional particles and the lamellar barrier fillers form a spatial coupling structure in the PVC continuous phase, the lamellar barrier fillers constitute in-plane oriented labyrinth diffusion channels, and the interface compatible locking component forms an interface bridging layer between the PVC continuous phase, the temperature-variable light-adjusting functional particles and the lamellar barrier fillers. The application realizes the cooperation of temperature response optical adjustment, lamellar labyrinth barrier and interface migration locking, so that the film material can produce changes in visible light transmittance, haze, color and / or near-infrared transmittance when the temperature changes, and the transmittance or migration of water vapor, oxygen and plasticizers is reduced.

This invention discloses a method for manufacturing shallow trench isolation, comprising: Step 1, performing a first etching process on a semiconductor substrate in the shallow trench formation area using a dry etching process to form a shallow trench; during the first etching, metal ions are precipitated in the dry etching process cavity and deposited on the inner surface of the shallow trench, and the metal ions diffuse and form a contamination layer; Step 2, performing a second etching process on the semiconductor substrate exposed on the inner surface of the shallow trench using a wet etching process to remove the contamination layer on the inner surface of the shallow trench. This invention can remove the metal ions precipitated in the dry etching process cavity and deposited on the inner surface of the shallow trench during the dry etching process, thereby avoiding the impact of metal ions on the yield of products, especially CMOS image sensors.

The utility model provides an AG glass spraying device. The AG glass spraying device comprises a spraying gun system used for spraying AG sand powder; the water tank is arranged under the spray gun system, a water outlet is formed in the water tank, and a baffle is arranged around the water outlet; the water storage tank is arranged below the water tank, and the water storage tank is communicated with the water tank through a water outlet; the water inlet pipe is arranged between the water tank and the spray gun system, and the water inlet end of the water inlet pipe communicates with the water storage tank. According to the AG glass spraying device, the water tank is arranged in the AG glass spraying device, and water in the water tank can be used for absorbing liquid medicine dust, so that the dust is prevented from floating in the air, white spots and AG loss on the surface of an AG glass product are reduced, and the product yield is increased.

This invention discloses a method for implementing an image sensor with a switchable lateral overflow integrating capacitor (LOFIC) voltage within a pixel unit. The pixel unit comprises at least one photodiode, a transfer transistor, a floating diffusion region, a reset transistor, a LOFIC, and a voltage switching unit. The photodiode is connected to the floating diffusion region via the transfer transistor. The first electrode of the LOFIC is coupled to the voltage switching unit, which is adapted to switch the first electrode of the LOFIC to different voltages. The voltage of the first electrode of the LOFIC is adjusted by timing control of the voltage switching unit to reduce the dark current of the image sensor and improve image delay.

The utility model discloses a liquid baffle device for a crude foil engine, which comprises a flow guide plate and a first cover plate, a second cover plate is arranged above the first cover plate through a plurality of support blocks, the first cover plate and the second cover plate are enclosed to form a gas path acid mist area, the rear side of the second cover plate is lapped with a tank body carrying table, and the gas path acid mist area is lapped with the tank body carrying table. The second cover plate can be adjusted back and forth through cooperation of the limiting holes and the limiting columns, and a third cover plate used for observing the crystallization condition is arranged above the second cover plate. Through the optimized and improved design of the product, a liquid path and a gas path are divided by the first cover plate, an electrolyte and an acid mist area are separated, and a sealed space is formed by matching with the support of the tank body, so that the suction force of the acid mist exhaust system is effectively improved, the acid mist exhaust effect is improved, and the overflow electrolyte is smoother by the guide plate, and the service life of the acid mist exhaust system is prolonged. And the overflow liquid is inhibited and guided to slowly overflow, white points generated on the electrolytic copper foil are effectively reduced, and the beneficial effect of improving the product appearance quality on the surface of the copper foil is achieved.

The utility model discloses a solvent-free composite cooling and curing production device, which relates to the technical field of curing production devices, and comprises a cooling and curing device and a box door arranged on the cooling and curing device, a cooling component is arranged in the cooling and curing device, a placing mechanism is arranged on the cooling and curing device, and the placing mechanism comprises a moving component and a driving component, the moving assembly is arranged in the cooling and curing device; the multiple suspension assemblies are arranged on the moving assembly, and each suspension assembly is provided with a film rolling body; and the driving assembly is arranged on one side of the moving assembly. According to the solvent-free double-component glue cooling and curing device, the cooling assembly is matched with the placing mechanism, so that a coiled film body can be conveniently placed in the cooling and curing device by utilizing the matching of the suspension assembly and the moving assembly, and then the viscosity of the solvent-free double-component glue is improved by utilizing the cooling assembly, so that the adhesive force between films is increased; meanwhile, the reaction intense degree of the double-component glue is reduced.