公开(公告)号：US20100100991A1

公开(公告)日：2010-04-22

申请号：US12254636

申请日：2008-10-20

申请人： Byong M. Kim ,  Robert N. Stark ,  Quan Tran ,  Wade Hassler ,  Qing Ma ,  Donald E. Adams ,  Yevgeny V. Anoikin

发明人： Byong M. Kim ,  Robert N. Stark ,  Quan Tran ,  Wade Hassler ,  Qing Ma ,  Donald E. Adams ,  Yevgeny V. Anoikin

IPC分类号： G01N27/00

CPC分类号： G01Q60/32 ,  G01Q60/40 ,  G11B9/02 ,  H01L41/0906

摘要： A device to detect polarization of a ferroelectric material comprises a probe tip, a charge amplifier electrically connected with the probe tip to convert a charge coupled to the probe tip from the ferroelectric material into an output voltage. The ferroelectric material is oscillated at a reference signal so that a charge is coupled to the probe tip and converted to an output voltage by the charge amplifier. A lock-in amplifier that receives the reference voltage and applies the reference voltage to the output voltage to extract a signal output representing the polarization.

摘要翻译： 用于检测铁电材料的极化的装置包括探针尖端，与探针尖端电连接的电荷放大器，以将耦合到探针尖端的电荷从铁电材料转换成输出电压。 铁电材料以参考信号振荡，使得电荷耦合到探针尖端并通过电荷放大器转换成输出电压。 锁定放大器，其接收参考电压并将参考电压施加到输出电压以提取表示极化的信号输出。