摘要:
The present subject matter relates to an integrated circuit comprising an erasable programmable read only memory (EPROM) array having a plurality of EPROM cells disposed in rows and columns, wherein one or more EPROM cells located at predetermined positions in the EPROM array are selectively dischargeable. The one or more EPROM cells comprise a EPROM transistor having a first conductive layer to store electrons upon the EPROM transistor being programmed and a control metal oxide semiconductor field-effect transistor (MOSFET) electrically connected to the first conductive layer to provide an electron leakage path to dissipate the electrons stored in the first conductive layer in a predetermined leak time period.
摘要:
A non- volatile memory cell includes a substrate of a first conductivity type, having a first region of a second conductivity type, a second region of the second conductivity type spaced apart from the first region, forming a channel region therebetween. A floating gate is disposed over and insulated from a first portion of the channel region which is adjacent the first region. A select gate is disposed over a second portion of the channel region adjacent to the second region, the select gate being formed of a metal material and being insulated from the second portion of the channel region by a layer of silicon dioxide and a layer of high K insulating material. A control gate is disposed over and insulated from the floating gate. An erase gate is disposed over and insulated from the first region, and disposed laterally adjacent to and insulated from the floating gate.
摘要:
A non- volatile memory cell including a substrate having first and second regions with a channel region therebetween. A floating gate is disposed over and insulated from a first portion of the channel region which is adjacent the first region. A select gate is disposed over and insulated from a second portion of the channel region which is adjacent to the second region. The select gate includes a block of polysilicon material and a work function metal material layer extending along bottom and side surfaces of the polysilicon material block. The select gate is insulated from the second portion of the channel region by a silicon dioxide layer and a high K insulating material layer. A control gate is disposed over and insulated from the floating gate, and an erase gate is disposed over and insulated from the first region, and disposed laterally adjacent to and insulated from the floating gate.
摘要:
In the examples provided herein, a device is described that has a stack of structure layers including a first structure layer and a second structure layer that are different materials, where the first structure layer is positioned higher in the stack than the second structure layer. The device also has a first sidewall spacer deposited conformally and circumferentially around an upper portion of the stack that includes the first structure layer. Further, the device has a second sidewall spacer deposited conformally and circumferentially around the first sidewall spacer and an additional portion of the stack that includes the second structure layer, where a height of the first sidewall spacer along the stack is different from a height of the second sidewall spacer.
摘要:
A memristor includes a bottom electrode, a top electrode, and an active region disposed therebetween. The active region has an electrically conducting filament in an electrically insulating medium, extending between the bottom electrode and the top electrode. The memristor further includes a temperature gradient element for controlling switching.
摘要:
A memory device with memory cell pairs each having a single continuous channel region, first and second floating gates over first and second portions of the channel region, an erase gate over a third portion of the channel region between the first and second channel region portions, and first and second control gates over the first and second floating gates. For each of the pairs of memory cells, the first region is electrically connected to the second region of an adjacent pair of memory cells in the same active region, and the second region is electrically connected to the first region of an adjacent pair of the memory cells in the same active region.
摘要:
A monolithic three dimensional NAND string includes a plurality of control gate electrodes extending substantially parallel to a major surface of a substrate, and at least one trench extending substantially perpendicular to the major surface of the substrate. The trench is filled with at least a first trench material and a second trench material. The first trench material includes a material under a first magnitude of a first stress type, and the second trench material includes a material under no stress, a second stress type opposite the first stress type, or a second magnitude of the first stress type lower than the first magnitude of the first stress type to offset warpage of the substrate due to the stress imposed by at least one of the first trench material or the plurality of control gate electrodes on the substrate.
摘要:
The band gap structure of a tunneling dielectric can be tailored to facilitate programming and erasing of stored information, while enhancing charge storage during states without electrical bias between a semiconductor channel and charge storage elements. The tunneling dielectric includes a layered stack including at least, from outside to inside, a dielectric metal oxide layer and a silicon oxide layer. Upon application of electrical bias for programming or erasing, the band gap structure of the tunneling dielectric provides a lower tunneling barrier than an ONO stack of a comparable effective oxide thickness. Additionally, due to higher capacitive coupling to the channel with high-k metal oxide layer(s) in the tunneling dielectric, the efficiency of program, erase and read operations can be improved. During a zero-bias state, the tunneling dielectric can provide a higher energy barrier than the ONO stack, thereby providing enhanced data retention than the ONO stack.