Invention Grant
- Patent Title: Multi-level sensing circuit configured to use a bit line charge
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Application No.: US16044201Application Date: 2018-07-24
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Publication No.: US10650867B2Publication Date: 2020-05-12
- Inventor: Hyung Sik Won , Tae Hun Kim
- Applicant: SK hynix Inc.
- Applicant Address: KR Icheon-si, Gyeonggi-do
- Assignee: SK hynix Inc.
- Current Assignee: SK hynix Inc.
- Current Assignee Address: KR Icheon-si, Gyeonggi-do
- Agency: William Park & Associates LTD.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@22afee14
- Main IPC: G11C11/4091
- IPC: G11C11/4091 ; G11C7/06 ; G11C7/12 ; G11C11/4099 ; G11C11/4094 ; G11C7/08 ; G11C11/56

Abstract:
A multi-level sensing circuit for a multi-level memory device configured to “recognize” more than two different voltages. The multi-level voltage sensing circuit may include a pre-charge controller configured to pre-charge a pair of bit lines with a bit-line pre-charge voltage level in response to an equalizing signal during a sensing mode. The multi-level voltage sensing circuit may include a read controller configured to maintain a voltage of the pair of bit lines at the bit-line pre-charge voltage level in response to a read control signal during a sensing operation. The multi-level voltage sensing circuit may include a sense-amplifier configured to generate data of the pair of bit lines during the sensing mode. The multi-level voltage sensing circuit may include a voltage sensor configured to generate the equalizing signal by comparing a bit-line voltage with a reference voltage.
Public/Granted literature
- US20190237114A1 MULTI-LEVEL SENSING CIRCUIT AND SEMICONDUCTOR MEMORY DEVICE INCLUDING THE SAME Public/Granted day:2019-08-01
Information query
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