Western Digital has been granted a patent for a memory device that optimizes programming by detecting the device’s temperature. The method involves setting a maximum number of programming loops based on this temperature, ensuring efficient memory cell programming across multiple word lines. GlobalData’s report on Western Digital gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Western Digital, was a key innovation area identified from patents. Western Digital's grant share as of June 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.

Temperature-dependent programming method for memory cells

Source: United States Patent and Trademark Office (USPTO). Credit: Western Digital Corp

The patent US12046306B2 outlines a method and apparatus for programming memory cells in a memory device, emphasizing the influence of temperature on the programming process. The method involves preparing a memory block with multiple memory cells organized into word lines. A temperature detection step is included, which informs the setting of a maximum number of programming loops. This maximum is determined based on whether the detected temperature is above or below a specified threshold. The programming of the selected word line continues until either the programming is complete or the number of loops exceeds the established maximum.

Additionally, the claims specify that the maximum number of program loops can vary, with a higher limit set for lower temperatures. The method allows for programming memory cells to store at least three bits of data per cell and can be executed in various programming sequences, including full-sequence and multi-pass operations. The apparatus described includes a temperature sensor and a controller that manages the programming process based on the detected temperature, ensuring efficient and reliable memory cell programming while adapting to thermal conditions.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.