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The laser driven particle accelerator on silicon chips was created by two independent research groups. With further improvements, this dielectric laser accelerator can be used in medicine and industry, and even in high-energy particle physics experiments.Accelerating electrons to high energy is usually accomplished over long distances in large and expensive facilities. For example, the electron ac...
Semi light, partially matter quasi particles, known as excitons polaritons, can easily bypass obstacles and condense into a single coherent state - both of which are characteristics of topological insulators. Researchers from the United States and China have developed a new technology to manufacture microcavities from chloride based halide perovskites. They expect this work to lead to a new type o...
Laserline will once again showcase its latest laser systems for joining and deposition welding at this year's Welding & Cutting show in Hall 5. This time the focus is on the world's first blue diode laser with an output power of 4 kW, which is said to have been developed for processing copper components.Its 445 nanometer wavelength is absorbed by copper and copper alloys, which is five t...
The ZEUS laser at the University of Michigan recently achieved a breakthrough of doubling the peak power of the strongest laser in the United States through its first 2 quadrillion watt experiment. Although this instantaneous power only lasts for 25 attosecond (one billionth of a second), it exceeds the total power of the global power grid by more than a hundred times.Karl Krushelnick, director of...
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...