公开(公告)号：US20030022427A1

公开(公告)日：2003-01-30

申请号：US10186289

申请日：2002-06-27

Applicant: STMicroelectronics S.A.

Inventor： Richard Ferrant ,  Florent Vautrin

IPC: H01L021/8238

CPC classification number: G11C11/406

Abstract: A device and a method for refreshing the voltage of a circuit line that provides the capability of bringing the circuit line to a ground voltage or to a first voltage. The method provides storing the circuit line voltage in a capacitor; and controlling, by means of the stored voltage, a switch connecting the circuit line to a second voltage of absolute value greater than the first voltage, whereby the circuit line is set to the second voltage if, during the step of storing, the circuit line was at the first voltage.

Abstract translation: 一种用于刷新电路线路的电压的装置和方法，其提供使电路线路接地电压或第一电压的能力。 该方法提供将电路线电压存储在电容器中; 以及通过所存储的电压来控制将所述电路线连接到绝对值大于所述第一电压的第二电压的开关，由此在所述电路线路的存储步骤期间将所述电路线设置为所述第二电压 处于第一电压。

公开(公告)号：US20020159321A1

公开(公告)日：2002-10-31

申请号：US10135981

申请日：2002-04-29

Applicant: STMicroelectronics S.A.

Inventor： Francois Jacquet ,  Florent Vautrin

IPC: G11C007/00

CPC classification number: G11C7/062 ,  G11C7/14 ,  G11C11/406 ,  G11C11/4091

Abstract: A device for reading from a capacitive memory cell, including a comparator of the voltage stored in the memory cell with respect to a reference value, which exhibits a high input impedance; a refreshment means distinct from the comparator, the refreshment means having a low output impedance and being controlled by the comparator to impose a refreshment voltage to the memory cell; and means for controllably connecting the refreshment means to the memory cell.

Abstract translation: 一种用于从电容存储单元读取的装置，包括相对于参考值存储在存储单元中的电压的比较器，该比较器具有高输入阻抗; 与比较器不同的刷新装置，刷新装置具有低输出阻抗并由比较器控制以向存储器单元施加刷新电压; 以及用于将所述刷新装置可控地连接到所述存储单元的装置。