会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • PRODUCTION METHOD OF AN ALUMINUM NITRIDE SINGLE CRYSTAL
    • 硝酸铝单晶的生产方法
    • US20120240845A1
    • 2012-09-27
    • US13512627
    • 2010-11-29
    • Hiroyuki FukuyamaMasanobu AzumaKazuya TakadaTakeshi Hattori
    • Hiroyuki FukuyamaMasanobu AzumaKazuya TakadaTakeshi Hattori
    • C30B25/14C30B25/16
    • C30B29/403C30B23/00C30B23/007C30B25/00C30B29/62
    • Disclosed is a novel method wherein an aluminum nitride single crystal having good crystallinity is efficiently and easily manufactured. The method for produsing an aluminum nitride single crystal wherein nitrogen gas is circulated in the presence of a raw material gas generation source, which generates an aluminum gas or an aluminum oxide gas, and a carbon body, and then the aluminum nitride single crystal is grown under a heating condition; characterized in that, at least a part of the carbon body does not directly contact with the raw material gas generation source, at least a part of the raw material gas generation source does not directly contact with the carbon body, the raw material gas generation source and the carbon body are positioned to make a space in which a clearance between the raw material gas generation source, which does not contact with the carbon body, and the carbon body, which does not contact with the raw material gas generation source, is 0.01 to 50 mm, and a heat temperature and a nitrogen gas flow rate are set so as to satisfy a condition for aluminum nitride deposition in a space between the raw material gas generation source, which does not contact with carbon body, and the carbon body, which does not contact with raw material gas generation source.
    • 公开了一种新颖的方法,其中具有良好结晶度的氮化铝单晶被有效且容易地制造。 在生成铝气体或氧化铝气体的原料气体发生源的存在下生成氮气的氮化铝单晶的制造方法和碳体,然后生长氮化铝单晶 在加热条件下 其特征在于,所述碳体的至少一部分不与所述原料气体发生源直接接触,所述原料气体发生源的至少一部分不与碳体直接接触,所述原料气体产生源 并且碳体被定位成使与未与碳体接触的原料气体发生源与不与原料气体发生源接触的碳体之间的间隙为0.01的空间 至50mm,并且设定加热温度和氮气流量以满足与碳体不接触的原料气体发生源与碳体之间的空间中的氮化铝沉积的条件, 其不与原料气体发生源接触。
    • 10. 发明授权
    • Automatic gain control circuit
    • 自动增益控制电路
    • US09143110B2
    • 2015-09-22
    • US14114519
    • 2012-06-29
    • Kimikazu SanoHiroyuki FukuyamaMakoto NakamuraHideyuki NosakaMiwa MutohKoichi Murata
    • Kimikazu SanoHiroyuki FukuyamaMakoto NakamuraHideyuki NosakaMiwa MutohKoichi Murata
    • H03G3/10H03F1/08H03G3/30
    • H03G3/30H03G3/3084
    • An automatic gain control circuit (5a) includes a peak detector circuit (10) that detects the peak voltage of the output signal from a variable gain amplifier (3), an average value detection and output amplitude setting circuit (11) that detects the average voltage of the output signals from the variable gain amplifier (3) and adds a voltage ½ the desired output amplitude of the variable gain amplifier (3) to the average voltage, and a high gain amplifier (12) that amplifies the difference between the output voltage of the peak detector circuit (10) and the output voltage of the average value detection and output amplitude setting circuit (11) and controls the gain of the variable gain amplifier (3) using the amplification result as a gain control signal. The peak detector circuit (10) includes transistors (Q1, Q2, Q3), a current source (I1), and a filter circuit. The filter circuit includes a series connection of a resistor (Ra) and a capacitor (C1).
    • 自动增益控制电路(5a)包括检测来自可变增益放大器(3)的输出信号的峰值电压的峰值检测电路(10),检测平均值的平均值检测和输出幅度设定电路(11) 来自可变增益放大器(3)的输出信号的电压,并将可变增益放大器(3)的期望输出幅度的电压½加到平均电压上;以及高增益放大器(12),放大输出 峰值检测器电路(10)的电压和平均值检测和输出幅度设置电路(11)的输出电压,并且使用放大结果来控制可变增益放大器(3)的增益作为增益控制信号。 峰值检测器电路(10)包括晶体管(Q1,Q2,Q3),电流源(I1)和滤波器电路。 滤波电路包括电阻(Ra)和电容器(C1)的串联连接。