摘要:
Wordline stacks are arranged parallel at a distance from one another on a substrate surface. Bitlines are arranged transversely to the wordline stacks at a distance from one another. Source/drain regions are formed as doped regions in the vicinity of the wordline stacks. A resistive layer is disposed between a plurality of the source/drain regions and the bitlines and formed of a material having a resistance that is switched by an applied voltage. Source lines are arranged parallel to the wordline stacks so that they connect further pluralities of the source/drain regions.
摘要:
Embodiments of the present invention relate generally to integrated circuits and methods for manufacturing an integrated circuit. In an embodiment of the invention, an integrated circuit having a memory cell is provided. The memory cell may include a trench in a carrier, a charge trapping layer structure in the trench, the charge trapping layer structure comprising at least two separate charge trapping regions, electrically conductive material at least partially filled in the trench, and source/drain regions next to the trench.
摘要:
An integrated circuit includes a first integrated circuit layer including at least one first transistor channel region and having a wafer bonding interface. The integrated circuit may further include at least one second integrated circuit layer including at least one second transistor channel region and being arranged at the wafer bonding interface of the first integrated circuit layer.
摘要:
The invention relates to integrated circuits, to a cell, to a cell arrangement, to a method for manufacturing an integrated circuit, to a method for manufacturing a cell, and to a memory module. In an embodiment of the invention, an integrated circuit is provided having a cell, the cell including a low-k dielectric layer, a first high-k dielectric layer disposed above the low-k dielectric layer, a charge trapping layer disposed above the first high-k dielectric layer, and a second high-k dielectric layer disposed above the charge trapping layer.
摘要:
A semiconductor device is fabricated by forming a trench in a semiconductor body. A region of dielectric material is formed within at least a lower portion of the trench. An upper portion of the semiconductor body is doped. A cutout is formed in the semiconductor material such that a vertical strip of semiconductor material remains along a sidewall of the dielectric material. A lower portion of the semiconductor body adjacent the sidewall of the dielectric material is doped. A gate dielectric layer is formed over the vertical strip of semiconductor material and a gate electrode is arranged in the cutout.
摘要:
A memory device includes active regions extending in a first direction, the active regions being formed in a semiconductor substrate. Transistors are formed in the active regions, including a first and a second source/drain region, a channel formed between the first and the second source/drain region, a gate electrode, and a charge storage layer stack disposed between the gate electrode and the channel, where adjacent active regions are isolated from each other by fin isolation grooves. Wordlines extend in a second direction, and each wordline is connected with a plurality of gate electrodes that are assigned to different active regions. The active regions are formed as ridges in the semiconductor substrate, with the word lines and the charge storing layer stack being disposed adjacent to at least two sides of each of the active regions. Each of the ridges has a top portion and a bottom portion, where the maximum width of the top portion is larger than the minimum width of the bottom portion.
摘要:
An array of charge-trapping multi-bit memory cells is arranged in a virtual-ground NAND architecture. The memory cells are erased by Fowler-Nordheim tunneling of electrons into the memory layers. The write operation is effected by hot hole injection. A write voltage is applied by a bitline to two NAND chains in series. The subsequent bitline on the side of the memory cell to be programmed is maintained on floating potential, whereas the bitline on the other side is set to an inhibit voltage, which is provided to inhibit a program disturb of an addressed memory cell which is not to be programmed. This virtual-ground NAND architecture of charge-trapping memory cells enables an increased storage density.
摘要:
A thin SiGe layer is provided as an additional lower gate electrode layer and is arranged between a thin gate oxide and a gate electrode layer, preferably of polysilicon. The SiGe layer can be etched selectively to the gate electrode and the gate oxide and is laterally removed adjacent the source/drain regions in order to form recesses, which are subsequently filled with a material that is appropriate for charge-trapping. The device structure and production method are appropriate for an integration scheme comprising local interconnects of memory cells, a CMOS logic periphery and means to compensate differences of the layer levels in the array and the periphery.
摘要:
A programming voltage is applied to source and drain in order to generate hot-hole injection at one end of the channel of a memory cell. The undesired programming of a neighboring memory cell is avoided by the application of an intermediate inhibit voltage to an adjacent bitline. This is done by precharging all the bitlines to the inhibit voltage, either by successively applying the inhibit voltage to every bitline individually or by applying both the upper and the lower programming voltage to one half of the bitlines and then short-circuiting all the bitlines to produce an intermediate voltage.