Invention Grant
US09443578B2 NAND array architecture for multiple simultaneous program and read
有权
NAND阵列架构用于多个同时程序和读取
- Patent Title: NAND array architecture for multiple simultaneous program and read
- Patent Title (中): NAND阵列架构用于多个同时程序和读取
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Application No.: US14979458Application Date: 2015-12-27
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Publication No.: US09443578B2Publication Date: 2016-09-13
- Inventor: Peter Wung Lee
- Applicant: Peter Wung Lee
- Applicant Address: US CA Fremont
- Assignee: APLUS FLASH TECHNOLOGY, INC.
- Current Assignee: APLUS FLASH TECHNOLOGY, INC.
- Current Assignee Address: US CA Fremont
- Agency: Raywell Group, LLC
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C11/56

Abstract:
This invention discloses a HiNAND array scheme with multiple-level of bit lines (BLs) including metal3 global bit lines (GBLs), divided metal2 Segment bit lines (SBLs), and divided metal1 block bit lines (BBLs) laid out in parallel to each other respectively for a plurality of NAND Strings. All other source lines or power lines connected to bottoms of corresponding String capacitances of GBLs, SBLs, and BBLs are associated with metal0 line laid out perpendicular to those BLs. Under the HiNAND array scheme, conventional one-WL Read and Program-Verify operations are replaced by multiple-WL and All-BL Read and Program-Verify operations executed with charge capacitance of SBLs being reduced to 1/10- 1/20 of capacitance of GBLs to achieve DRAM-like faster operation, less operation stress, and lower power consumption. A preferred set of program biased voltages on the selected WL and remaining non-selected WLs associated with a Multiplier and a DRAM-like charge-sharing Latch Sensing Amplifier is proposed.
Public/Granted literature
- US20160141024A1 NOVEL NAND ARRAY ARCHITECTURE FOR MULTIPLE SIMUTANEOUS PROGRAM AND READ Public/Granted day:2016-05-19
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