Abstract:
Semiconductor memory devices, resistive memory devices, memory cell structures, and methods of forming a resistive memory cell (106, 230, 350, 360, 470, 480) are provided. One example method of a resistive memory cell (106, 230, 350, 360, 470, 480) can include a number of dielectric regions (236, 356, 366, 476, 486) formed between two electrodes (102/104, 232/234, 352/354, 362/364, 472/474, 482/484), and a barrier dielectric region (238, 358, 368, 478, 488) formed between each of the dielectric regions (236, 356, 366, 476, 486). The barrier dielectric region (238, 358, 368, 478, 488) serves to reduce an oxygen diffusion rate associated with the dielectric regions (236, 356, 366, 476, 486).
Abstract:
Methods, devices, and systems associated with oxide based memory are described herein. In one or more embodiments, a method of forming an oxide based memory cell includes forming a first electrode, forming a tunnel barrier, wherein a first portion of the tunnel barrier includes a first material and a second portion of the tunnel barrier includes a second material, forming an oxygen source, and forming a second electrode.
Abstract:
Memories, systems, and methods for forming memory cells are disclosed. One such memory cell includes a charge storage node that includes nanodots over a tunnel dielectric and a protective film over the nanodots. In another memory cell, the charge storage node includes nanodots that include a ruthenium alloy. Memory cells can include an inter gate dielectric over the protective film or ruthenium alloy nanodots and a control gate over the inter gate dielectric. The protective film and ruthenium alloy can be configured to protect at least some of the nanodots from vaporizing during formation of the inter gate dielectric.
Abstract:
Some embodiments include memory cells. The memory cells may include a tunnel dielectric material, a charge-retaining region over the tunnel dielectric material, crystalline ultrahigh k dielectric material over the charge -retaining region, and a control gate material over the crystalline ultra-high k dielectric material. Additionally, the memory cells may include an amorphous region between the charge -retaining region and the crystalline ultra-high k dielectric material, and/or may include an amorphous region between the crystalline ultra-high k dielectric material and the control gate material. Some embodiments include methods of forming memory cells which contain an amorphous region between a charge-retaining region and a crystalline ultra-high k dielectric material, and/or which contain an amorphous region between a crystalline ultra-high k dielectric material and a control gate material.
Abstract:
Some embodiments include memory cells. The memory cells may include a tunnel dielectric material, a charge-retaining region over the tunnel dielectric material, crystalline ultrahigh k dielectric material over the charge -retaining region, and a control gate material over the crystalline ultra-high k dielectric material. Additionally, the memory cells may include an amorphous region between the charge -retaining region and the crystalline ultra-high k dielectric material, and/or may include an amorphous region between the crystalline ultra-high k dielectric material and the control gate material. Some embodiments include methods of forming memory cells which contain an amorphous region between a charge-retaining region and a crystalline ultra-high k dielectric material, and/or which contain an amorphous region between a crystalline ultra-high k dielectric material and a control gate material.
Abstract:
Some embodiments include memory cells which have channel-supporting material, dielectric material over the channel-supporting material, carrier-trapping material over the dielectric material and an electrically conductive electrode material over and directly against the carrier-trapping material; where the carrier-trapping material includes gallium, indium, zinc and oxygen. Some embodiments include methods of storing information. A memory cell to is provided which has a channel-supporting material, a dielectric material over the channel-supporting material, a carrier-trapping material over the dielectric material, and an electrically conductive electrode material over and directly against the carrier-trapping material; where the carrier-trapping material includes gallium, indium, zinc and oxygen. It is determined if carriers are trapped in the carrier-trapping material to thereby ascertain a memory state of the memory cell.
Abstract:
Methods, devices, and systems associated with oxide based memory are described herein. In one or more embodiments, a method of forming an oxide based memory cell includes forming a first electrode, forming a tunnel barrier, wherein a first portion of the tunnel barrier includes a first material and a second portion of the tunnel barrier includes a second material, forming an oxygen source, and forming a second electrode.
Abstract:
A memory cell (100) is provided including a tunnel dielectric layer (104) overlying a semiconductor substrate (102). The memory cell also includes a floating gate having a first portion (106) overlying the tunnel dielectric layer and a second portion (116) in the form of a nanorod extending from the first portion. In addition, a control gate layer (122) is separated from the floating gate by an intergate dielectric layer (120).
Abstract:
Methods, devices, and systems are provided for a select device that can include a semiconductive stack of at least one semiconductive material formed on a first electrode, where the semiconductive stack can have a thickness of about 700 angstroms () or less. Each of the at least one semiconductive material can have an associated band gap of about 4 electron volts (eV) or less and a second electrode can be formed on the semiconductive stack.
Abstract:
Memories, systems, and methods for forming memory cells are disclosed. One such memory cell includes a charge storage node that includes nanodots over a tunnel dielectric and a protective film over the nanodots. In another memory cell, the charge storage node includes nanodots that include a ruthenium alloy. Memory cells can include an inter gate dielectric over the protective film or ruthenium alloy nanodots and a control gate over the inter gate dielectric. The protective film and ruthenium alloy can be configured to protect at least some of the nanodots from vaporizing during formation of the inter gate dielectric.