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特黄a又粗又大又黄又爽a片 | 国产精品V欧美精品∨日韩 | 成人无码网www在线观看精东 | 中文字幕无码中文字幕有码在线 | 免费a级毛片出奶水 | 亚洲成肉网激情 |
沅江市 | 莲花县 | 东丰县 | 宁国市 | 安化县 | 社会 |
栖霞市 | 衡阳县 | 财经 | 盐边县 | 安丘市 | 庆安县 |
仪征市 | 文水县 | 小金县 | 沁源县 | 长丰县 | 徐水县 |