Title:
MAGNETIC RANDOM ACCESS MEMORY AND READ CIRCUIT THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/127428
Kind Code:
A1
Abstract:
A magnetic random access memory and a read circuit thereof. The read circuit comprises a sense amplifier, a reference array, and a read array. The reference array comprises a first reference resistor, a second reference resistor, a first storage unit, a second storage unit, a first controllable switch, a second controllable switch, and a switch transistor; a first end of the first reference resistor and a first end of the second reference resistor are separately connected to the switch transistor; a first end of the first storage unit is separately connected to a second end of the first reference resistor and a second end of the second reference resistor; a first end of the second storage unit is separately connected to the second end of the first reference resistor and the second end of the second reference resistor; the second end of the first storage unit is connected to a second end of the first controllable switch; the second end of the second storage unit is connected to a second end of the second controllable switch; a first end of the first controllable switch and a first end of the second controllable switch are separately connected to a reference word line; a third end of the first controllable switch and a third end of the second controllable switch are separately grounded. Thus, the window of a reference voltage is enlarged, and the read yield is increased.
Inventors:
XIONG BAOYU (CN)
SHEN AO (CN)
SHEN AO (CN)
Application Number:
PCT/CN2021/128924
Publication Date:
June 23, 2022
Filing Date:
November 05, 2021
Export Citation:
Assignee:
ZHEJIANG HIKSTOR TECH CO LTD (CN)
International Classes:
G11C11/16; G11C16/26
Foreign References:
| CN104134460A | 2014-11-05 | |||
| CN1463009A | 2003-12-24 | |||
| CN111755037A | 2020-10-09 | |||
| CN1681040A | 2005-10-12 | |||
| CN111370042A | 2020-07-03 | |||
| US20060092689A1 | 2006-05-04 | |||
| US20100067282A1 | 2010-03-18 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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