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Samsung patents memory circuit that moves data between buffer units

Samsung has been granted a patent for a specific design of a page buffer circuit used in memory chips. The invention describes how data is transferred between different buffer units using pass transistors during a specific time period to manage data flow.

Why it mattersThis is a routine improvement to internal memory chip architecture that helps manage how data is stored and retrieved, which is standard practice for memory manufacturers.

In the filing’s own words

A memory device includes a memory cell array including memory cells and a page buffer circuit including page buffer units respectively connected to the memory cells through a plurality of bit lines and cache latches respectively corresponding to the page buffer units, each of the page buffer units including a main latch and a pass transistor, each connected to a corresponding sensing node, sensing nodes of at least first, second, and third page buffer units of the page buffer units connected to one another through pass transistors of the first, second, and third page buffer units, and a main latch of the first page buffer unit configured to perform a first data dump operation of transferring first data to a main latch of the second page buffer unit in a first time period of a data dump period.

What exactly they claim (claim 1)

1. A memory device comprising: a memory cell array including a plurality of memory cells; and a page buffer circuit including a plurality of page buffer units respectively connected to the plurality of memory cells through a plurality of bit lines and a plurality of cache latches respectively corresponding to the plurality of page buffer units, each of the plurality of page buffer units comprising a main latch and a pass transistor, each connected to a corresponding sensing node, sensing nodes of at least first, second, and third page buffer units of the plurality of page buffer units connected to one another through pass transistors of the first, second, and third page buffer units, and a main latch of the first page buffer unit configured to perform a first data dump operation of transferring first data to a main latch of the second page buffer unit in a first time period of a data dump period.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Page buffer circuit and memory device including the same
Patent number
US12763152B2
Application number
18973603
Filed
Dec 9, 2024
Granted
Oct 13, 2026
Inventors
1
Claims
20

Classified under

G11C 16/26 Physics & computingG11C 16/0483 Physics & computing

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.