Brushless motor and driving control device therefor

    公开(公告)号:US06469463B2

    公开(公告)日:2002-10-22

    申请号:US09814181

    申请日:2001-03-22

    申请人: Hui Chen Shuji Endo

    发明人: Hui Chen Shuji Endo

    IPC分类号: H02P612

    CPC分类号: B62D5/046 H02P6/10 H02P6/14

    摘要: There is provided a brushless motor and a driving control device therefor both of which can restrain the occurrence of current variations, torque variations and noise in the brushless motor, thereby constructing an electrically-operated power steering system of low noise and good steering feeling. In the driving control device for the brushless motor having a current variation rate control part which controls a current variation rate during commutation, and having plural excitation phases, the current variation rate control part terminates commutation transient time which is the time for which phase currents are in a transient state during a commutation operation, within ½ of commutation interval time which is the time required from the starting time of a certain commutation until the starting time of the next commutation.

    NH3 plasma descumming and resist stripping in semiconductor applications
    132.
    发明授权
    NH3 plasma descumming and resist stripping in semiconductor applications 失效
    NH3等离子体除氧和半导体应用中的抗剥离

    公开(公告)号:US06455431B1

    公开(公告)日:2002-09-24

    申请号:US09629329

    申请日:2000-08-01

    IPC分类号: H01L21302

    CPC分类号: H01L21/31138 G03F7/427

    摘要: In general, the present disclosure pertains to a method for removing photoresist from locations on a semiconductor structure where its presence is undesired. In one embodiment, a method is disclosed for descumming residual photoresist material from areas where it is not desired after patterning of the photoresist. In another embodiment, a misaligned patterned photoresist is stripped from a semiconductor substrate surface. In particular, the method comprises exposing the semiconductor structure to a plasma generated from a source gas comprising NH3. A substrate bias voltage is utilized in both methods in order to produce anisotropic etching. In the descumming embodiment, the critical dimensions of the patterned photoresist are maintained. In the photoresist stripping embodiment, a patterned photoresist is removed without adversely affecting a partially exposed underlying layer of an organic dielectric.

    摘要翻译: 通常,本公开涉及用于从半导体结构上的位置去除光致抗蚀剂的方法,其中其存在是不期望的。 在一个实施例中,公开了一种从光刻胶图形化之后不希望的区域去除残余光致抗蚀剂材料的方法。 在另一个实施例中,从半导体衬底表面剥离未对准的图案化光致抗蚀剂。 特别地,该方法包括将半导体结构暴露于由包含NH 3的源气体产生的等离子体。 为了产生各向异性蚀刻,在两种方法中均采用衬底偏置电压。 在除尘实施例中,维持图案化光致抗蚀剂的临界尺寸。 在光致抗蚀剂剥离实施例中,去除图案化的光致抗蚀剂,而不会有害地影响有机电介质的部分暴露的下层。

    Faucet
    133.
    外观设计
    Faucet 有权

    公开(公告)号:USD859589S1

    公开(公告)日:2019-09-10

    申请号:US29647339

    申请日:2018-05-11

    申请人: Hui Chen

    设计人: Hui Chen

    Water tap
    134.
    外观设计

    公开(公告)号:USD857175S1

    公开(公告)日:2019-08-20

    申请号:US29614974

    申请日:2017-08-24

    申请人: Hui Chen

    设计人: Hui Chen

    Water tap
    135.
    外观设计

    公开(公告)号:USD857174S1

    公开(公告)日:2019-08-20

    申请号:US29614961

    申请日:2017-08-24

    申请人: Hui Chen

    设计人: Hui Chen

    Faucet
    136.
    外观设计
    Faucet 有权

    公开(公告)号:USD850587S1

    公开(公告)日:2019-06-04

    申请号:US29669556

    申请日:2018-11-09

    申请人: Hui Chen

    设计人: Hui Chen

    Faucet
    137.
    外观设计
    Faucet 有权

    公开(公告)号:USD849200S1

    公开(公告)日:2019-05-21

    申请号:US29668803

    申请日:2018-11-02

    申请人: Hui Chen

    设计人: Hui Chen