Type of vacuum heat treatmentVacuum annealing: eliminate and reduce the heterogeneity of tissue, remove internal stress and improve its plasticity.Vacuum tempering: eliminates internal stress during machining.Vacuum quenching :(gas quenching, oil quenching) fast cooling after heating to harden the m
Type of vacuum heat treatmentVacuum annealing: eliminate and reduce the heterogeneity of tissue, remove internal stress and improve its plasticity.Vacuum tempering: eliminates internal stress during machining.Vacuum quenching :(gas quenching, oil quenching) fast cooling after heating to harden the m
READ MORETo solve the problem of liquid cooling when 3D chips stack, the defense advanced research projects agency (DARPA), in collaboration with IBM and the Georgia institute of technology, has developed an in-chip/inter-chip enhanced cooling program that USES an insulating dielectric refrigerant (instead o
To solve the problem of liquid cooling when 3D chips stack, the defense advanced research projects agency (DARPA), in collaboration with IBM and the Georgia institute of technology, has developed an in-chip/inter-chip enhanced cooling program that USES an insulating dielectric refrigerant (instead o
READ MOREThis paper respectively from the IGBT chip structure, the structure of the collector area on the back and front MOS structure, the system analyzes the technology present situation and the characteristics of high power IGBT chip, from two aspects of chip welding and the electrode interconnection comp
This paper respectively from the IGBT chip structure, the structure of the collector area on the back and front MOS structure, the system analyzes the technology present situation and the characteristics of high power IGBT chip, from two aspects of chip welding and the electrode interconnection comp
READ MOREWith the development of semiconductor chip technology and optical technology, the output power of semiconductor lasers has been continuously improved, the beam quality has been significantly improved, and more applications have been obtained in the industrial field.At present, the output power and b
With the development of semiconductor chip technology and optical technology, the output power of semiconductor lasers has been continuously improved, the beam quality has been significantly improved, and more applications have been obtained in the industrial field.At present, the output power and b
READ MORE
| 又色又爽的国产视频 | 久久99精品久久久久久久清纯 | 又爽又黄又粗又大免费视频 | 国产精品a∨一区二区三区 | 99精品视频免费热播在线观看 | 天涯做爱网站在线观看 |
| 绥江县 | 朔州市 | 沐川县 | 上林县 | 祁连县 | 贡嘎县 |
| 通化市 | 丰镇市 | 葵青区 | 濉溪县 | 康保县 | 读书 |
| 道孚县 | 雷州市 | 望城县 | 大邑县 | 陆川县 | 博白县 |
