公开(公告)号：US20040218440A1

公开(公告)日：2004-11-04

申请号：US10789443

申请日：2004-02-27

Applicant: STMicroelectronics S.r.I.

Inventor： Promod Kumar ,  Francesco Tomaiuolo ,  Pierpaolo Nicosia ,  Luca Giuseppe De Ambroggi ,  Francesco Pipitone

IPC: G11C011/34

CPC classification number: G11C29/16 ,  G11C16/04 ,  G11C2029/0401 ,  G11C2029/0405

Abstract: An effective Electric Wafer Sort (EWS) flow is implemented by expanding the functions of the micro-controller embedded in a FLASH EPROM memory device and of the integrated test structures. The architecture provides for executing test routines internally without involving any external complex or expensive test equipment to control the test program. The processes are executed by the onboard micro-controllers (that may be reading either from an embedded ROM or from a GLOBAL CACHE provided). Managing test routines by an internal process permits the device architecture to be transparent from a tester point of view, by purposely creating a standard interface with a set of defined commands and instructions to be interpreted by the on board microcontroller and internally executed.

Abstract translation: 通过扩展嵌入在FLASH EPROM存储器件和集成测试结构中的微控制器的功能来实现有效的电晶片分级（EWS）流程。 该架构提供在内部执行测试例程，而不涉及任何外部复杂或昂贵的测试设备来控制测试程序。 这些过程由板载微控制器执行（可能是从嵌入式ROM或从提供的GLOBAL CACHE读取）。 通过内部进程来管理测试例程允许设备架构从测试人员的角度来看是透明的，目的是通过一组定义的命令和指令来创建标准接口，由板载微控制器解释并在内部执行。

公开(公告)号：US20030142568A1

公开(公告)日：2003-07-31

申请号：US10331147

申请日：2002-12-27

Applicant: STMicroelectronics S.r.I.

Inventor： Salvatore Giove ,  Luca De Ambroggi ,  Salvatore Nicosia ,  Francesco Tomaiulo ,  Kumar Promod ,  Giuseppe Piazza ,  Francesco Pipitone

IPC: G11C007/02 ,  G11C007/00

CPC classification number: G11C7/062 ,  G11C7/067 ,  G11C16/28

Abstract: A circuit for controlling a reference node in a sense amplifier switchable between an operating mode and a stand-by mode is provided. The reference node provides a reference voltage in the operating mode. The circuit may include circuitry for bringing the reference node to a starting voltage upon entry into the stand-by mode, circuitry for keeping the reference node at a pre-charging voltage in the stand-by mode, and circuitry for providing a comparison voltage closer to the pre-charging voltage than the starting voltage. Pulling circuitry may also be included for pulling the reference node toward a power supply voltage. Further, a controller may activate the pulling circuitry upon entering the stand-by mode, and disable the pulling circuitry when the voltage at the reference node reaches the comparison voltage.

Abstract translation: 提供了一种用于控制在操作模式和待机模式之间切换的读出放大器中的参考节点的电路。 参考节点在工作模式下提供参考电压。 电路可以包括用于在进入待机模式时使参考节点进入起始电压的电路，用于将参考节点保持在备用模式下的预充电电压的电路，以及用于提供比较电压更接近的电路 到预充电电压比启动电压。 还可以包括牵引电路以将参考节点拉向电源电压。 此外，控制器可以在进入待机模式时激活拉电路，并且当参考节点处的电压达到比较电压时禁止拉电路。