Title:
RESISTANCE COMPENSATION APPARATUS AND METHOD FOR STORAGE CHIP, AND STORAGE CHIP
Document Type and Number:
WIPO Patent Application WO/2023/093193
Kind Code:
A1
Abstract:
A resistance compensation apparatus and method for a storage chip, and a storage chip. A compensation resistor is gated by means of configuring a compensation circuit switch to be gated in synchronization with the reception of a bit cell; and corresponding resistance compensation is performed on a gated bit cell by using the total resistance value of a pre-designed compensation resistor array structure. In comparison with performing sampling by using a sampling circuit and then determining a compensation scheme, a sampling circuit is not required, and the effect of synchronous compensation can be achieved; there is more space for designing a more refined step for a compensation resistor, thereby realizing faster resistance compensation having higher precision, balancing the voltages of bit cells, avoiding the contradiction of a read-write failure caused by the voltage of a far-end bit cell being insufficient and the reduction of the service life caused by the voltage of a near-end bit cell being too high, improving the read yield of an array, and improving the consistency of the resistance of the bit cells; and in comparison with an existing compensation scheme, the space for a chip is better saved on, thereby reducing the cost of the chip.
Inventors:
FANG WEI (CN)
Application Number:
PCT/CN2022/116776
Publication Date:
June 01, 2023
Filing Date:
September 02, 2022
Export Citation:
Assignee:
ZHEJIANG HIKSTOR TECH CO LTD (CN)
International Classes:
G11C13/00
Foreign References:
| CN107705813A | 2018-02-16 | |||
| CN103222004A | 2013-07-24 | |||
| CN110660434A | 2020-01-07 | |||
| CN111755037A | 2020-10-09 | |||
| CN110729012A | 2020-01-24 | |||
| CN102157203A | 2011-08-17 | |||
| CN112309472A | 2021-02-02 | |||
| US20190385678A1 | 2019-12-19 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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