POWER CONTROL METHOD AND APPARATUS FOR LOWER RADIO FREQUENCY POWER SOURCE, AND SEMICONDUCTOR PROCESSING DEVICE

    公开(公告)号:EP4407651A1

    公开(公告)日:2024-07-31

    申请号:EP22871990.2

    申请日:2022-09-21

    Abstract: The present disclosure provides a power control method and device of a lower RF power supply, and semiconductor process equipment. The method includes, when a processing chamber starts semiconductor processing, with a predetermined power compensation equation and according to a pre-obtained first RF circuit parameter set of a reference chamber and a second RF circuit parameter set of a present processing chamber performing the semiconductor processing, obtaining a power compensation coefficient of the present processing chamber relative to the reference chamber; according to the power compensation coefficient and a power setting value of the lower RF power supply of the present processing chamber, calculating a power compensation value of the present processing chamber relative to the reference chamber, and controlling the lower RF power supply to output the power compensation value. In the technical solution of the present disclosure, processing result consistency of different processing chambers can be improved.

    WIRELESS POWER TRANSMISSION DEVICE
    10.
    发明公开

    公开(公告)号:EP3144954A4

    公开(公告)日:2018-01-03

    申请号:EP15791920

    申请日:2015-05-04

    CPC classification number: H01F38/14 H01F1/342 H01F27/2823 H01J7/00

    Abstract: The present disclosure discloses a wireless power transmission device including a first coil and a second coil electromagnetically coupled to the first coil without contacting therewith. At least a portion of one of the first coil and the second coil passes through at least a portion of a space defined by the other of the first coil and the second coil. In the present disclosure, since one of a transmitting coil and a receiving coil passes through the other of the transmitting coil and the receiving coil, strength of electromagnetic coupling between the two coils can be improved so as to increase the strength of electromagnetic coupling between the coils without increasing sizes thereof.

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