Knobbe, Martens, Olson & Bear, LLP
Operating parameter offsets in solid state memory devices
Systems and methods are described for generating location-based read voltage offsets in a data storage device. Optimal read voltage thresholds vary across memory elements of a device. However, data storage devices are often limited in the number of read voltage thresholds that can be maintained in the device. Thus, it may not be possible to maintain optimal read voltage parameters for each memory element within a device. The systems and methods described herein provide for increased accuracy of read voltage thresholds when applied to memory elements within a specific location in a device, by enabling the use of location-based read voltage offsets, depending on a relative location of the memory element being read from. The read voltage offsets can be determined based on application of a neural network to data regarding optimal read voltage thresholds determined from at least a sample of memory elements in a device.
Western Digital Technologies, Inc.
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Nian Niles Alexander Roi Ariel Philip David Rami Idan Karin
Yang Bazarsky Kirshenbaum Navon Reusswig Rom Goldenberg Inbar