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:
Oct. 13, 2020
Filed:
Jun. 11, 2019
Applied Materials, Inc., Santa Clara, CA (US);
Frank Tzen-Wen Guo, Danville, CA (US);
Bhuvaneshwari Ayyagari-Sangamalli, Cupertino, CA (US);
Angada B. Sachid, San Jose, CA (US);
Blessy Alexander, Dublin, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A memory circuit includes a memory array with one or more reference columns providing a reference signal and a data column providing a data signal when selected by a read operation. The memory circuit also includes a first circuit that removes a common signal component from the reference signal and from the data signal, along with a second circuit that adjusts the reference signal to be between a logic 1 signal level and a logic 0 signal level. The memory circuit also includes a sense amplifier that determines whether the data signal represents a logic 1 or a logic 0 using the reference signal after the common signal component is removed and after being adjusted, along with the data signal after having the common signal component removed.