3D dynamic storage device, data reading method, data writing method and memory device
A dynamic storage and 3D technology, applied in the field of memory, can solve the problems of reduced storage system integration, higher cost, lower data transmission efficiency, etc., to achieve the effect of reducing time spent, saving cost, and improving integration
Pending Publication Date: 2022-02-11
XI AN UNIIC SEMICON CO LTD
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[0003] The inventor of the present application has discovered in the long-term research and development process that in order to realize the non-volatility of the dynamic storage device, a non-volatile storage device can be connected to the dynamic storage device, so that when the system is powered off, the data of the dynamic storage device Flash to the non-volatile storage device; however, the data of the dynamic storage device and the non-volatile storage device are separate memories, which will cause a certain delay in data writing and reading, which will reduce the efficiency of data transmission and cause interruptions. It has high requirements on the backup power supply during power-on, which will reduce the integration level of the entire storage system and increase the cost
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[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0021] The terms "first" and "second" in this application are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any varia...
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The invention discloses a 3D dynamic storage device, a data reading method, a data writing method and memory equipment. The 3D dynamic storage device comprises a control wafer which is provided with a DDR interface; a dynamic storage wafer which is arranged on one side of the control wafer and is electrically connected with the DDR interface; a nonvolatile storage wafer which is arranged on one side, deviating from the control wafer, of the dynamic storage wafer and is electrically connected with the DDR interface; wherein the control wafer is used for receiving a write request and judging whether data corresponding to the write request is hot data or not; and when the data is hot data, the wafer is controlled to store the data to the dynamic storage wafer, and the wafer is controlled to back up the data stored in the dynamic storage wafer to the nonvolatile storage wafer when power failure of the wafer is abnormal. In this way, the data backup time can be shortened, the requirement for a standby power supply can be lowered, the integration level of the 3D dynamic storage device can be improved, and the cost can be saved.
Description
technical field [0001] The present application relates to the technical field of memory, in particular to a 3D dynamic storage device, a method for reading data, a method for writing data, and a memory device. Background technique [0002] The main working principle of the dynamic memory device is to use the amount of charge stored in the capacitor to represent whether a binary bit is 1 or 0. Due to the phenomenon of leakage current in transistors in reality, the amount of charge stored on the capacitor is not enough to correctly judge the data, resulting in data corruption. Therefore, for a dynamic storage device, periodic charging is an inevitable requirement; since the data stored in the dynamic storage device will disappear soon after the power is cut off, it belongs to a volatile storage device. [0003] The inventor of the present application has discovered in the long-term research and development process that in order to realize the non-volatility of the dynamic sto...
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IPC IPC(8): G11C11/409G11C11/4093G11C11/4096G06F11/14
CPCG11C11/409G11C11/4093G11C11/4096G06F11/1448
Inventor 周小锋
Owner XI AN UNIIC SEMICON CO LTD