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Recently, scientists used laser gyroscopes to measure that the change in Earth's rotational speed is less than one millionth. This technology can help scientists understand the complex flow of water and air, which can cause the smallest adjustments to the Earth's rotation.The Earth's rotation is not completely stable. Planets accelerate or slow down as they rotate, slightly shortening or prolongin...
Laser cladding, also known as laser metal deposition, is a process of depositing one material onto another.When the laser beam scans the target surface, metal powder or wire flow is fed into the molten pool formed by the laser beam, thereby producing the required material coating.The laser cladding method improves the surface properties of the parts, such as wear resistance, and allows for the rep...
Real time and high-precision optical flow estimation is crucial for analyzing dynamic scenes in computer vision. Although traditional methods are fundamental, they often encounter issues with computation and accuracy, especially when executed on edge devices. The emergence of deep learning has driven the development of this field, providing higher accuracy, but at the cost of sacrificing computati...
近日,从江苏通用半导体有限公司传来消息,由该公司自主研发的国内首套的8英寸碳化硅晶锭激光全自动剥离设备正式交付碳化硅衬底生产领域头部企业广州南砂晶圆半导体技术有限公司,并投入生产。 图:8英寸SiC晶锭激光全自动剥离设备 该设备可实现6英寸和8英寸碳化硅晶锭的全自动分片,包含晶锭上料、晶锭研磨、激光切割、晶片分离和晶片收集,一举填补了国内碳化硅晶锭激光剥离设备领域研发、制造的市场空白,突破了国外的技术封锁,将极大地提升我国碳化硅芯片产业的自主化、产业化水平。 该设备年可剥离碳化硅衬底20000片,实现良率95%以上,与传统的线切割工艺相比,大幅降低了产品损耗,而设备售价仅仅是国外同类产品的1/3。 近年来,碳化硅功率器件在大功率半导体市场中所占的份额不断提高,并被广泛应用于新能源汽车、城市轨道交通、风力发电、高速移动、物联网等一系列领域...
Due to the surge in the deployment of small satellites, the increasing congestion of data transmission has always been a persistent problem in the aerospace industry. The collaboration between the Communication and Navigation Research Institute of the German Aerospace Center and Tesat Spacecom GmbH and Co. KG TESAT provides a powerful solution. They successfully developed and tested OSIRIS4CubeSat...