Samsung Electronics Co., Ltd.

Joo-Ah Kang

Jong-Hwa Kim

June Hyung Lee

Moo-sung Kim

Jong Hwa Kim

In-Young Kim

A flash memory device and a read method thereof are provided. At a read operation, a sense node of a page buffer is developed while a bitline is developed and data of a selected memory cell is sensed based on the develop result of the sense node. For a develop period, voltage loss arising from the sense node is compensated fast and the compensated result is latched, which makes it possible to simplify the design and reduce a chip size.

Flash memory device and read method thereof

A flash memory device includes memory cells, a common node, a sense node connected to a selected bit line, a first register connected to the common node, a second register connected to the common node and the sense node, a common sense circuit connected to the common node, the sense node, and a control node; a switch, and a pre-charge circuit connected to the control node and configured to pre-charge the control node.

Flash memory device having single page buffer structure

A page buffer may comprise of a latch connected to a sense node at a first contact point. The page buffer may also comprise of a sensing circuit connected to the sense node at a second contact point, the sensing circuit being configured to sense cell data of the sense node. The page buffer may also comprise of a switch circuit which electrically connects the first contact point with the second contact point after the first contact point is charged by the latch.

Page buffer and a method for driving the same in a nonvolatile memory device

In one aspect, a non-volatile memory device includes a non-volatile memory cell array and a page buffer. The page buffer includes a sense node selectively connected to a bit line of the memory cell array, a main latch circuit including first and second main latch nodes, where the first main latch node is selectively connected to the sense node, and a latch input node selectively connected to the first and second main latch nodes. The page buffer further includes a cache latch circuit including first and second cache latch nodes, a switching circuit which selectively connects the second cache latch node to the latch input node, and a shared sense circuit connected between to the latch input node and a reference potential. The shared sense circuit selectively connects the latch input node to the reference potential in response to a voltage of the sense node and a voltage of the first cache latch node.

Page buffer and non-volatile memory device including the same

An integrated circuit device includes a semiconductor substrate having an interlayer insulating layer thereon and a first junction block embedded in the interlayer insulating layer. The first junction block includes a first plurality of conductive junction traces located side-by-side within the interlayer insulating layer and a corresponding first plurality of pairs of conductive vias connected to opposite ends of respective ones of the first plurality of conductive junction traces. The first junction block also includes a dummy conductive trace located adjacent the first plurality of conductive junction traces and a pair of dummy conductive vias connected to opposite ends of the dummy junction trace. The integrated circuit device further includes a plurality of upper metallization traces routed on the interlayer insulating layer. The upper metallization traces are configured to electrically connect with the first plurality of pairs of conductive vias and maintain the dummy conductive trace and the pair of dummy conductive vias in an unused and electrically floating condition.

Growing community of inventors

Seoul, South Korea

Joo-Ah Kang