发明授权
US5805499A Channel hot-carrier page write for NAND applications 失效
通道热载体页面写入NAND应用程序

Channel hot-carrier page write for NAND applications
摘要:
There is provided a novel method for performing low current channel hot-carrier programming in a NAND memory architecture. A first positive pulse voltage having a ramp-rate characteristic on its leading edge is applied to the drain of the select gate drain devices in the selected columns of bit lines during the programming operation. Simultaneously, a second positive pulse voltage is applied to the control gate of the select gate drain device and to the word lines of unselected memory cells so as to overlap the first positive pulse voltage. Further, a ramp voltage is applied to the word line of selected memory cells so as to permit fast programming thereof.
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