Patent Application for Improved Sense Amplifier in Semiconductor Memory Devices

A patent application by inventor SEO, YOUNGHUN, filed on April 29, 2014, was made available online on February 12, 2015. The application, assigned to Samsung Electronics Co., Ltd, aims to improve the performance of semiconductor memory devices by enhancing the sense amplifier's ability to sense and amplify data. According to the inventor, the current sense amplifier design suffers from offset noise and coupling noise, which degrade the device's performance. The proposed innovation seeks to address these issues by introducing an offset cancelling operation and a pre-sensing operation to compensate for device offsets and reduce coupling efficiency between bitlines.

Key Takeaways:

• The patent application proposes a new sense amplifier design that incorporates an offset cancelling operation and a pre-sensing operation to improve the effective sensing margin of the device.
• The inventor highlights the issue of offset noise and coupling noise in current sense amplifier designs, which degrade the device's performance.
• The proposed innovation aims to increase the effective sensing margin of the memory device by operating the sense amplifier with an offset cancelling operation to compensate for device offsets and a pre-sensing operation to reduce coupling efficiency between bitlines.
• The application describes various embodiments of the inventive concept, including block diagrams and circuit diagrams, to illustrate the operation of the sense amplifier.
• The inventor also discusses the potential benefits of the proposed innovation, including improved performance and increased effective sensing margin of the memory device.

Statistics:

• The patent application was filed on April 29, 2014, and made available online on February 12, 2015.
• The application is assigned to Samsung Electronics Co., Ltd, a leading technology company in the semiconductor memory industry.
• The inventor, SEO, YOUNGHUN, is a resident of Hwaseong-si, KR.
• The patent application includes a total of 28 figures illustrating the details of the inventive concept.
• The proposed innovation involves the use of two isolation switches, two offset cancellation switches, and a sense amplifying unit to sense and amplify data.

Sources:

• SEO, YOUNGHUN. Sensor Amplifier, Memory Device Comprising Same, and Related Method of Operation. Filed April 29, 2014 and posted February 12, 2015. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3836&p=77&f=G&l=50&d=PG01&S1=20150205.PD.&OS=PD/20150205&RS=PD/20150205