Invention Grant
- Patent Title: Memory device with power noise minimization during sensing
- Patent Title (中): 在感测期间功率噪声最小化的存储器件
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Application No.: US12163133Application Date: 2008-06-27
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Publication No.: US07751250B2Publication Date: 2010-07-06
- Inventor: Seungpil Lee , Hao Thai Nguyen , Man Lung Mui
- Applicant: Seungpil Lee , Hao Thai Nguyen , Man Lung Mui
- Applicant Address: US CA Milpitas
- Assignee: Sandisk Corporation
- Current Assignee: Sandisk Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Vierra Magen Marcus & DeNiro LLP
- Main IPC: G11C16/26
- IPC: G11C16/26

Abstract:
Accuracy of sensing operations, such as read or verify, in a memory device is improved by avoiding fluctuations in a sense amp supply voltage which can occur when different sense amps are strobed at different times. First and second sets of sense amps perform a sensing operation on respective storage elements, such as in an all bit line configuration. The first set of sense amps is strobed at a first time point. In response, a sensed analog level is converted to digital data. The A/D conversion relies on the sense amp supply voltage being accurate. To avoid a fluctuation in the sense amp supply voltage, a bypass path allows the storage elements associated with the first set of sense amps to continue to draw power from the sense amp supply voltage. The second set of sense amps is strobed at a later, second time point.
Public/Granted literature
- US20090323421A1 MEMORY DEVICE WITH POWER NOISE MINIMIZATION DURING SENSING Public/Granted day:2009-12-31
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