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    • 10. 发明申请
    • ION BEAM VACUUM SPUTTERING APPARATUS AND METHOD
    • 离子束真空溅射装置和方法
    • WO01022470A1
    • 2001-03-29
    • PCT/GB2000/003577
    • 2000-09-18
    • G21K5/04C23C14/46H01J27/16H01J37/08H01J37/304H01J37/34H05H1/24H01J27/02H01J27/18
    • H01J37/304H01J2237/3146
    • A vacuum sputtering apparatus (1) includes an ion gun (3) whose ion extraction system (5) includes an accelerator grid (22) connected to a d.c. voltage supply (21). The plasma in the ion gun (3) is generated by r.f. power delivered by an r.f. coil (6) and forms a beam of ions (8) which is projected towards a target (9) from which material is sputtered on to a substrate (12). Magnets (7) trap adjacent the wall of the plasma generation chamber (4) electrons released as a result of plasma formation. An r.f. power supply (32) supplies r.f. power to the r.f. coil (6). A control circuit includes components (23, 30; 23, 30, 38, 39, 40, 41) arranged to derive from the current flowing from the d.c. voltage supply (21) to the accelerator grid (22) a control signal for controlling the r.f power supply means (32). This control signal can be supplied to a computer (31) which carries out fast accelerator grid current/time integration or fast accelerator grid power/time integration, to determine the rate of deposition of sputtered material upon the substrate (12). Alternatively the control signal can be fed into the r.f. power supply means (32) for direct closed loop accelerator grid current or grid power control.
    • 真空溅射装置(1)包括离子枪(3),其离子提取系统(5)包括连接到直流电路的加速器网格(22)。 电源(21)。 离子枪(3)中的等离子体由r.f产生。 电源由r.f. 线圈(6)并且形成离子(8)的一束,所述离子束朝向靶(9)投影,材料溅射到靶(12)上。 磁体(7)与等离子体产生室(4)的壁相邻陷入由于等离子体形成而释放的电子。 一个r.f. 电源(32)供应r.f. 权力到r.f. 线圈(6)。 控制电路包括被配置为从电流流过的电流导出的组件(23,30; 23,30,38,39,40,41)。 向加速器电网(22)供给(21)用于控制r.f电源装置(32)的控制信号。 该控制信号可以被提供给执行快速加速器电网电流/时间积分或快速加速器电网功率/时间积分的计算机(31),以确定溅射材料在衬底(12)上的沉积速率。 或者,控制信号可以馈送到r.f. 电源装置(32),用于直接闭环加速器电网电流或电网功率控制。