摘要:
To achieve a highest possible integration density in a semiconductor memory device having storage capacitors as storage elements, the method according to the invention forms the capacitor devices in substantially vertically extending fashion, to, as a result, achieve a substantially three-dimensional configuration and an configuration extending into the third dimension for the capacitor devices, a contact connection of the storage capacitors being formed after the production of the storage capacitors.
摘要:
To manufacture FeRAM memories in a particularly space-saving fashion and, thus, increase the storage density, a manufacturing method forms at least some of the multiplicity of capacitor devices used as storage elements with a multiplicity of individual capacitors that are connected in parallel with one another. The individual capacitors have ferroelectric or paraelectric dielectric regions with different coercitive voltages such that there is a resulting multiplicity of storage states for each of the individual capacitors.
摘要:
A memory cell arrangement includes a first memory cell string having a plurality of serially source-to-drain-coupled transistors, at least some of them being memory cells, a second memory cell string having a plurality of serially source-to-drain-coupled transistors, at least some of them being memory cells. A dielectric material is between and above the first memory cell string and the second memory cell string. A source/drain line groove is defined in the dielectric material. The source/drain line groove extends from a source/drain region of one transistor of the first memory cell string to a source/drain region of the second memory cell string. Electrically conductive filling material is disposed in the source/drain line groove. Dielectric filling material is disposed in the source/drain line groove between the source/drain regions.
摘要:
A method for fabricating stacked non-volatile memory cells and non-volatile memory cell arrays are disclosed. A semiconductor wafer is provided having a charge-trapping layer and a conductive layer deposited on the surface of the semiconductor wafer. Using a mask layer on top of the conductive layer, contact holes are formed into which a contact fill material is deposited. A further conductive layer is deposited on the surface of the semiconductor wafer and is patterned so as to form word lines. The contact fill material is connected to a contact plug using the contact holes with the contact fill material as a landing pad.
摘要:
A memory system includes a plurality of resistive memory cell fields including at least a first resistive memory cell field and a second resistive memory cell field, the first resistive memory cell field formed with a plurality of resistive memory cells storing data at a first data storage speed, the second resistive memory cell field formed with a plurality of resistive memory cells storing data at a second data storage speed lower than the first data storage speed, and a controller controlling data transfer between the plurality of resistive memory cell fields.
摘要:
A semiconductor memory device includes a channel region, a gate electrode adjacent the channel region, and a charge-trapping layer between the channel region and the gate electrode. A voltage is applied between the gate electrode and the channel region to cause a first current of a first kind of charge carriers from the channel region to move into the charge-trapping layer and to cause a second current of a second kind of charge carriers from the gate electrode to move into the charge-trapping layer, until the value of the second current is at least half the amount of the first current value.
摘要:
A method for fabricating stacked non-volatile memory cells and non-volatile memory cell arrays are disclosed. A semiconductor wafer is provided having a charge-trapping layer and a conductive layer deposited on the surface of the semiconductor wafer. Using a mask layer on top of the conductive layer, contact holes are formed into which a contact fill material is deposited. A further conductive layer is deposited on the surface of the semiconductor wafer and is patterned so as to form word lines. The contact fill material is connected to a contact plug using the contact holes with the contact fill material as a landing pad.
摘要:
Silicon nanocrystals are applied as storage layer (6) and removed using spacer elements (11) laterally with respect to the gate electrode (5). By means of an implantation of dopant, source/drain regions (2) are fabricated in a self-aligned manner with respect to the storage layer (6). The portions of the storage layer (6) are interrupted by the gate electrode (5) and the gate dielectric (4), so that a central portion of the channel region (3) is not covered by the storage layer (6). This memory cell is suitable as a multi-bit flash memory cell in a virtual ground architecture.
摘要:
A semiconductor circuit configuration has at least one pair of complementary operating field-effect transistors in which each transistor has a gate region, first and second source/drain regions and also a channel region with or made of an organic semiconductor material that is provided in between. It is furthermore provided that the gate regions are formed such that they are electrically coupled to one another via a capacitor configuration.
摘要:
Charge-trapping regions are arranged beneath lower edges of the gate electrode separate from one another. Source/drain regions are formed in self-aligned manner with respect to the charge-trapping regions by means of a doping process at low energy in order to form shallow junctions laterally extending only a small distance beneath the charge-trapping regions. The self-alignment ensures a large number of program-erase cycles with high effectiveness and good data retention, because the locations of the injections of charge carriers of opposite signs are narrowly and exactly defined.