PROCESS FOR CONTROLLING THERMAL HISTORY OF VACANCY-DOMINATED, SINGLE CRYSTAL SILICON
    1.
    发明申请
    PROCESS FOR CONTROLLING THERMAL HISTORY OF VACANCY-DOMINATED, SINGLE CRYSTAL SILICON 审中-公开
    用于控制单晶硅单晶热历史的方法

    公开(公告)号:WO0244446A3

    公开(公告)日:2003-01-16

    申请号:PCT/US0144180

    申请日:2001-11-26

    CPC classification number: C30B29/06 C30B15/14 C30B15/203 C30B15/206

    Abstract: A Czochralski method of producing a single crystal silicon ingot having a uniform thermal history. In the process, the power supplied to the side heater is decreased during the growth of a latter portion of main body, and optionally the end-cone, of the ingot, while power supplied to a bottom heater is gradually increased during growth the same portion. The present process enables a substantial portion of an ingot to be obtained yielding wafers having fewer light point defects in excess of about 0.2 microns and improved gate oxide integrity.

    Abstract translation: 一种生产具有均匀热历史的单晶硅锭的切克劳斯基法。 在该过程中,在主体的后部生长期间,并且可选地,锭的端锥生长期间,供应到侧加热器的功率减小,同时供给底部加热器的功率在生长期间逐渐增加,同一部分 。 本方法使得能够获得晶锭的大部分,从而产生具有超过约0.2微米的较少光点缺陷和改善的栅极氧化物完整性的晶片。

    EMITTER FOLLOWER CIRCUIT
    2.
    发明申请
    EMITTER FOLLOWER CIRCUIT 审中-公开
    发射器电路

    公开(公告)号:WO1989002677A1

    公开(公告)日:1989-03-23

    申请号:PCT/JP1988000923

    申请日:1988-09-13

    Inventor: FUJITSU LIMITED

    CPC classification number: H03K3/356017 H03K19/0016

    Abstract: An emitter follower circuit has series circuits, each consisting of an emitter follower transistor (Q3, Q4), a current source, and a current source resistor connected to the emitter side of the emitter follower transistor (Q3, Q4). The source resistors are MOS transistors (N4, N5), which are switched on and off by control signals so that they have conduction and cutoff states. Between the source and the drain of each MOS transistors (N4, N5), current path means (R1, R2) is provided which has a resistance greater than the on-resistance of the MOS transistors to permit a very small current to flow, at least when said MOS transistors are rendered nonconductive.

    RESISTANCE WELDING METHOD, RESISTANCE -WELDED MEMBER AND CONTROL APPARATUS FOR RESISTANCE WELDER; RESISTANCE WELDING EVALUATION METHOD, AND RESISTANCE WELDING EVALUATION PROGRAM
    5.
    发明申请
    RESISTANCE WELDING METHOD, RESISTANCE -WELDED MEMBER AND CONTROL APPARATUS FOR RESISTANCE WELDER; RESISTANCE WELDING EVALUATION METHOD, AND RESISTANCE WELDING EVALUATION PROGRAM 审中-公开
    电阻焊接方法,电阻焊接构件和电阻焊机控制装置; 电阻焊接评估方法和电阻焊接评估方案

    公开(公告)号:WO2011061623A3

    公开(公告)日:2011-11-03

    申请号:PCT/IB2010003119

    申请日:2010-11-16

    CPC classification number: B23K11/115 B23K11/252 B23K11/257 B23K11/258

    Abstract: In a resistance welding method, by controlling the power amount from a melting start time onward, the weld quality may be stabilized efficiently, even when a disturbance is present, because of the correlation between the amount of power input from the melting atart time and a resulting nugget. The resistance welding method includes: pressing an electrode (11a, 11b) against a workpiece (Wa, Wb); inputting power to the workpiece (Wa, Wb) through the electrode (11a, 11b) to subject the workpiece (Wa, Wb) to Joule heating; detecting the melting start time, which is the time at which at least a portion of the faying portion of a workpiece (Wa, Wb) starts to melt when subjected to Joule heating; calculating a first power amount input into the workpiece (Wa, Wb) from the melting start time; and determining whether the first power amount has reached a first set value; and continuing the Joule heating until the first power amount reaches the first set value.

    Abstract translation: 在电阻焊接方法中,通过从熔融开始时间开始控制功率量,即使存在干扰也能有效地稳定焊接质量,因为从熔融起始时间输入的功率量与 得到的块。 电阻焊接方法包括:将电极(11a,11b)压靠在工件(Wa,Wb)上; 通过电极(11a,11b)向工件(Wa,Wb)输入动力以对工件(Wa,Wb)进行焦耳加热; 检测熔化开始时间,即当进行焦耳加热时工件(Wa,Wb)的接合部分的至少一部分开始熔化的时间; 计算从熔化开始时间输入到工件(Wa,Wb)的第一功率量; 以及确定所述第一电力量是否已经达到第一设定值; 并继续焦耳加热直到第一功率量达到第一设定值。

    RESISTANCE WELDING METHOD, RESISTANCE WELDER, AND METHOD AND DEVICE FOR EVALUATING RESISTANCE WELDING
    6.
    发明申请
    RESISTANCE WELDING METHOD, RESISTANCE WELDER, AND METHOD AND DEVICE FOR EVALUATING RESISTANCE WELDING 审中-公开
    电阻焊接方法,电阻焊接机,电阻焊接评估方法及装置

    公开(公告)号:WO2011016193A1

    公开(公告)日:2011-02-10

    申请号:PCT/JP2010/004653

    申请日:2010-07-20

    CPC classification number: B23K11/256 B23K11/115

    Abstract: This invention aims to provide a resistance welding method capable of stabilizing quality or improving efficiency of resistance welding such as spot welding. This resistance welding method comprises a calculating step of calculating resistance ratio X of a second electric resistance value R2 of workpieces to be joined in residual heat after Joule heating stops to a first electric resistance value R1 of the workpieces immediately before the Joule heating stops or vice versa (R2/R1 or R1/R2); a determining step of determining whether the resistance ratio X is equal to or greater than a threshold value Xn, and a reheating step of carrying out the Joule heating again when the resistance ratio X is smaller than the threshold value Xn. Thereby at least part of a welding portion is melted and solidified to reliably form a nugget, and a stably resistance-welded member can be provided.

    Abstract translation: 本发明的目的在于提供一种电阻焊接方法,其能够稳定电阻焊接的质量或提高效率,例如点焊。 该电阻焊接方法包括以下计算步骤:在焦耳加热停止之后,在焦耳加热停止后的剩余热量中要连接的工件的第二电阻值R2的电阻比X计算到刚巧焦耳加热停止之前的工件的第一电阻值R1 (R2 / R1或R1 / R2); 确定电阻比X是否等于或大于阈值Xn的确定步骤,以及当电阻比X小于阈值Xn时再次进行焦耳加热的再加热步骤。 由此,焊接部的至少一部分熔融固化,可靠地形成熔核,并且可以提供稳定的电阻焊接部件。

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