Laser cladding method improves the surface performance of parts

The Near Infrared Red Planet Search Alliance, jointly managed by the Department of Astronomy at the University of Geneva and the University of Montreal, has received cutting-edge advances in CSEM laser frequency comb technology.The laser frequency comb is a precise and stable light source designed to help the NIRPS alliance unravel the mysteries of distant planets, including the possibility of sea...

The high-end laser cutting machine developed and produced by Dongying Lijin Zhancheng Laser Intelligent Manufacturing Company has become popular in overseas markets this spring. This equipment can not only use laser to quickly cut steel, but also freely swing on steel, "showing" beautiful pictures. The laser travels like a paintbrush flying, and the hard steel plate has been hollowed out into be...

The research team led by Professor Gao Xiaoming and Professor Liu Kun of the Chinese Academy of Sciences Hefei Institute of Physical Sciences recently designed a concentration independent pressure sensing technology for high-temperature combustion diagnosis. This method is based on dual color laser absorption spectroscopy.The results of this study have been published in Optics Letters.Aircraft eng...

The N-linear optical microscope has completely changed our ability to observe and understand complex biological processes. However, light can also harm organisms. However, little is known about the mechanisms behind the irreversible disturbances of strong light on cellular processes.To address this gap, the research teams of Hanieh Fattahi and Daniel Wehner from the Max Planck Institute for Photos...

       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...