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:
Jun. 06, 2023
Filed:
Jul. 16, 2021
Micron Technology, Inc., Boise, ID (US);
Yoshinori Fujiwara, Boise, ID (US);
Harish V. Gadamsetty, Allen, TX (US);
Gary Howe, Allen, TX (US);
Dennis G. Montierth, Meridan, ID (US);
Michael A. Shore, Boise, ID (US);
Jason M. Johnson, Nampa, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
Apparatuses, systems, and methods for refresh address masking. A memory device may refresh word lines as part of refresh operation by cycling through the word lines in a sequence. However, it may be desirable to avoid activating certain word lines (e.g., because they are defective). Refresh masking logic for each bank may include a fuse latch which stores a selected address associated with a word line to avoid. When a refresh address is generated it may be compared to the selected address. If there is a match, a refresh stop signal may be activated, which may prevent refreshing of the word line(s).