发明名称 |
X-ray source and X-ray lithography method. |
摘要 |
<p>A Gas injection type plasma X-ray source has a gas plenum for storing a discharging gas at a pressure in the range of 150 Torr and 1000 Torr, and that the stored gas is injected between a pair of electrodes through a gas valve. The electrodes are opposed to each other in a vacuum vessel, so that a gas jet for the production of a plasma is formed. A voltage is applied to perform discharge between said electrodes, so that a discharge plasma is produced between said electrodes. A linear plasma with a high temperature and a high density is produced by the pinch of the plasma due to its own magnetic field produced by the current flowing through the plasma, so that X-rays are emitted from said linear plasma. The X-ray source has a high conversion efficiency and a high discharge timing margin, and accordingly the stability and reproducibility of discharges are improved and the X-ray output is increased. </p> |
申请公布号 |
EP0153648(A2) |
申请公布日期 |
1985.09.04 |
申请号 |
EP19850101451 |
申请日期 |
1985.02.11 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE PUBLIC CORPORATION |
发明人 |
OKADA, IKUO;SAITOH, YASUNAO;YOSHIHARA, HIDEO;NAKAYAMA, SATOSHI |
分类号 |
H01J35/22;G03F7/20;H01L21/027;H05G2/00;(IPC1-7):H05G1/00 |
主分类号 |
H01J35/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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