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    • 2. 发明申请
    • Solar Cell and Manufacturing Method Thereof
    • 太阳能电池及其制造方法
    • US20120273040A1
    • 2012-11-01
    • US13413629
    • 2012-03-06
    • Won-Gyun KimHee-June KwakSang-Jin ParkSang-Won SeoYoung-Jin Kim
    • Won-Gyun KimHee-June KwakSang-Jin ParkSang-Won SeoYoung-Jin Kim
    • H01L31/0232H01L31/0236H01L31/18
    • H01L31/0682Y02E10/547
    • A method for forming a doped region in a solar cell includes preparing a first and second surface of a substrate, forming a first doped region doped with a first dopant in a part of the first surface, forming a silicon oxide layer on the first surface, the silicon oxide layer including a first silicon oxide layer on the first doped region and having a first thickness, and a second silicon oxide layer on a portion of the first surface undoped by the first dopant and having a second thickness that is less than the first thickness, implanting a second dopant from outside the first surface into the first silicon oxide layer and the second silicon oxide layer, and forming a second doped region adjacent the first doped region by performing heat treatment on the first silicon oxide layer, the second silicon oxide layer, and the substrate.
    • 在太阳能电池中形成掺杂区域的方法包括:制备衬底的第一和第二表面,在第一表面的一部分中形成掺杂有第一掺杂剂的第一掺杂区,在第一表面上形成氧化硅层; 所述氧化硅层在所述第一掺杂区域上包括第一氧化硅层并且具有第一厚度,以及在所述第一表面的由所述第一掺杂物掺杂的部分上的第二氧化硅层,并且具有小于所述第一厚度的第一厚度 厚度,从第一表面外部注入第二掺杂剂到第一氧化硅层和第二氧化硅层中,以及通过对第一氧化硅层进行热处理形成与第一掺杂区相邻的第二掺杂区,第二氧化硅 层和基板。
    • 10. 发明申请
    • MIXER CIRCUIT
    • 混频器电路
    • US20110063013A1
    • 2011-03-17
    • US12868003
    • 2010-08-25
    • Young-Jin KimIl-Ho NaChun-Sik JeongSeong-Young SonSeung-Min LeeMyung-Woon Hwang
    • Young-Jin KimIl-Ho NaChun-Sik JeongSeong-Young SonSeung-Min LeeMyung-Woon Hwang
    • G06G7/12
    • G06G7/16
    • The present invention discloses a mixer circuit for mixing two input signals by source-coupled MOS transistors and outputting a mixed result. A duty cycle controlling MOS transistor is connected to a source of each source-coupled MOS transistor in series. A duty cycle controlling pulse is applied to a gate of the duty cycle controlling MOS transistor. The duty cycle controlling pulse has a phase shift of −90 degrees with respect to a controlling pulse applied to the gate of the source-coupled MOS transistor connected with the duty cycle controlling MOS transistor in series. An AND-combination of the duty cycles of the two controlling pulses applied to the gates of the two MOS transistors connected in series can be controlled at 25%. Comparing to the conventional mixer circuit having a switch control duty cycle of 50%, the present invention achieves the effects of increasing the gain and reducing the noise figure.
    • 本发明公开了一种用于通过源极耦合MOS晶体管混合两个输入信号并输出​​混合结果的混频器电路。 占空比控制MOS晶体管串联连接到每个源极耦合MOS晶体管的源极。 占空比控制脉冲施加到占空比控制MOS晶体管的栅极。 占空比控制脉冲相对于与占空比控制MOS晶体管串联连接的源极耦合MOS晶体管的栅极的控制脉冲具有-90度的相移。 施加到串联连接的两个MOS晶体管的栅极的两个控制脉冲的占空比的AND组合可以控制在25%。 与具有50%的开关控制占空比的常规混频器电路相比,本发明实现了增加增益和降低噪声系数的效果。