The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2022
Filed:
Apr. 07, 2020
Macronix International Co., Ltd., Hsinchu, TW;
Szu-yu Ko, Kaohsiung, TW;
Shang-Chi Yang, Changhua County, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
Systems, methods, circuits, and apparatus including computer-readable mediums for managing bit line voltage generating circuits in memory devices are provided. An example bit line voltage generating circuit is configured to provide a stable clamping voltage to at least one bit line connecting memory cells in the memory device. The bit line voltage generating circuit includes an operational amplifier configured to receive a reference voltage, a feedback voltage, and a compensation current and output an output voltage, and an output transistor configured to provide a terminal voltage as the feedback voltage and the output voltage as a target voltage that is associated with the clamping voltage. The operational amplifier is configured to be unbalanced such that the terminal voltage is smaller than the reference voltage, and the compensation current is configured to compensate the operational amplifier such that the clamping voltage is substantially constant and independent from PVT (Process-Voltage-Temperature) effect.