执行增量步进脉冲编程操作的存储器装置及其操作方法
By using bit-line precharge operation and latch control circuitry in the Incremental Step Pulse Programming (ISPP) scheme, the problem of reduced programming efficiency caused by channel boost is solved, and more efficient programming operation is achieved.
CN115512746BActive Publication Date: 2026-07-17SK HYNIX INC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SK HYNIX INC
- Filing Date
- 2022-05-17
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In incremental step pulse programming (ISPP) schemes, channel boost leads to reduced programming efficiency.
Method used
By employing bit-line pre-charge operations during programming, the control circuit electrically connects the bit lines at different points in time, ensuring effective management of the programming and pre-charge processes in the programming cycle. This includes the use of latches and bit-line controllers to latch logic levels and connect the bit lines to the power supply or ground voltage at appropriate times.
Benefits of technology
It improves programming efficiency, prevents channel boosting, and ensures the stability and efficiency of programming operations.
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Abstract
本公开涉及执行增量步进脉冲编程操作的存储器装置及其操作方法。一种存储器装置包括：存储器单元阵列；以及控制电路，其中，控制电路每当执行一次编程循环时，从第一时间点到第二时间点向选定字线和未选字线中的每一者施加通过电压，然后从第二时间点到第三时间点向选定字线施加编程电压并且向未选字线施加通过电压，当执行通过ISPP重复执行的编程操作的第一编程循环时，从第一时间点之前的第四时间点到第二时间点执行位线预充电操作，并且当执行除了第一编程循环之外的其它编程循环时，从第四时间点到与第一时间点相同或在第一时间点之前的第五时间点执行位线预充电操作。
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