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.

Date of Patent:
Nov. 28, 2023

Filed:

Jun. 01, 2022
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Farid Nemati, Los Altos Hills, CA (US);

Steven R. Hutsell, San Jose, CA (US);

Gregory S. Mathews, Saratoga, CA (US);

Yi Chun Chen, San Jose, CA (US);

Kevin C. Wong, Los Altos, CA (US);

Kalpana Bansal, San Jose, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1064 (2013.01); G06F 11/076 (2013.01); G06F 11/0772 (2013.01); G06F 11/106 (2013.01);
Abstract

Techniques are disclosed relating to improving memory reliability, e.g., in the context of memory circuits with limited reliability features. In some embodiments, memory controller circuitry is configured to communicate with memory circuitry via an interface that supports link error detection. The memory controller circuitry may, based on a corruption indicator, transmit a data and parity combination for the first data block that causes the memory circuitry to detect an uncorrectable write interface error. Subsequent reads of the location may therefore cause an uncorrectable error indication. This may advantageously allow the memory controller circuitry to propagate a corruption indicator as an uncorrectable error in the memory circuit, without requiring additional tracking of the indicator by the memory circuit or memory controller, in some embodiments.


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