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:
Sep. 25, 2018
Filed:
Jan. 23, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
Zhen Li, Wuhan, CN;
Qiang He, Wuhan, CN;
Xiangshui Miao, Wuhan, CN;
Ronggang Xu, Shenzhen, CN;
Junfeng Zhao, Shenzhen, CN;
Zhulin Wei, Shenzhen, CN;
Huawei Technologies Co., Ltd, Shenzhen, CN;
Abstract
A data storage method applying to a phase change memory and the phase change memory are provided. After obtaining to-be-stored data, the phase change memory (PCM) generates an erase pulse signal and a write pulse signal according to the to-be-stored data. The to-be-stored data is multi-bit data. The write pulse signal includes at least two contiguous pulses. Intervals between the at least two contiguous pulses are the same. The intervals between the at least two contiguous pulses have a value determined according to the to-be-stored data. The PCM applies the erase pulse signal to a storage unit of the PCM to enable the storage unit to change to a crystalline state. Further, the write pulse signal is applied to the storage unit to enable the storage unit to change to an amorphous state corresponding to a first resistance value, where the amorphous state represents the to-be-stored data.