摘要:
An integrated circuit includes a plurality of switching devices, wherein each device includes a gate dielectric capable of assuming at least a first and a second polarization state. The integrated circuit further includes an address circuit configured to control bit lines electrically coupled to first load regions of a load path of the switching devices and a word line electrically coupled to gate electrodes of the switching devices. The address circuit is configured to control a write cycle such that a first voltage is induced at the gate dielectrics of selected ones of the switching devices and a second voltage is induced at the gate dielectrics of non-selected ones of the switching devices. The first voltage suffices to switch the gate dielectrics of the selected devices from the first to the second polarization state and the second voltage does not suffice to switch the gate dielectrics of the non-selected devices.
摘要:
An integrated circuit includes: a resistive memory having an array of resistive memory cells; a memory controller that controls operation of the resistive memory in accordance with external commands from an external device; and a memory scheduler coupled to the resistive memory and to the memory controller. The memory scheduler schedules internal maintenance operations within the resistive memory in response to trigger conditions indicated by at least one sensor signal or external command. The operation of the memory scheduler and performance of the internal maintenance operations are transparent to the external device and, optionally, transparent to the memory controller.
摘要:
Double patterning a photo sensitive layer stack, is disclosed including providing a substrate being coated with a first and a second photo resist layer, exposing both photo resist layers by employing lithographic projection steps, wherein a second lithographic projection step illuminates a latent image with a focal depth at least partially covering the second photo resist layer.
摘要:
An integrated circuit includes a first contact, a second contact, and a U-shaped access device coupled to the first contact and the second contact. The integrated circuit includes self-aligned dielectric material isolating the first contact from the second contact.
摘要:
One possible embodiment is a method of manufacturing a structure on or in a substrate with the following stepsa) positioning at least one spacer structure by a spacer technique on the substrate,b) using at least one of the groups of the spacer structure and a structure generated by the spacer structure as a mask for a subsequent particle irradiation step for generating a latent image in the substratec) using the latent image for further processing the substrate.
摘要:
An integrated circuit including a storage capacitor suitable for use in a DRAM cell, as well as to a method of manufacturing such a storage capacitor is disclosed. The storage capacitor is formed at least partially above a semiconductor substrate surface. The invention also includes a memory array employing the storage capacitor.
摘要:
A method is described for fabricating a DRAM memory cell, which includes a trench capacitor and a select transistor. After the capacitor trench has been etched and optionally the first capacitor electrode has been produced, the trench is filled with a dummy filling. After the gate electrode and the first and second source/drain regions have been provided, the dummy filling is removed, and the capacitor dielectric and the second capacitor electrode are provided. As a result, it is possible to use temperature-sensitive materials for the capacitor dielectric and the second capacitor electrode despite the use of high-temperature steps. In the memory cell arrangement formed by this method, the direction of the conductive channel, which connects first and second source/drain regions to one another, can differ from the direction of the bit lines and of the word lines (e.g., by 45°).
摘要:
In DRAM memory cells, individual memory cells are isolated from one another by an isolation trench (STI). In such a case, a vertical transistor is formed by the isolation trench as SOI transistor because its channel region is isolated from a substrate by the isolation trench. A vertical transistor that is used, for example, in a DRAM memory cell and a method for making the transistor includes connecting the channel region of the vertical transistor to the substrate by disposing a conductive layer in the isolation trench between a lower insulation filling and an upper insulation filling.
摘要:
The memory cell has a trench in which a capacitor is formed. Furthermore, a vertical transistor is formed in the trench, above the trench capacitor. The doping regions of the vertical transistor are arranged in the substrate. In order to connect the gate electrode of the vertical transistor to a word line, a dielectric layer having an inner opening is arranged in the trench, above the gate electrode. The dielectric layer is configured as lateral edge webs which project beyond the cross section of the trench and thus cover part of the substrate. The lateral edge webs enable self-aligned formation of an isolation trench.
摘要:
A circuit includes first and second semiconductor switches each having a load path and control terminal and their load paths connected in series. At least one of the first and second switches includes a first semiconductor device having a load path and a control terminal, the control terminal coupled to the control terminal of the switch. A plurality of second semiconductor devices each have a load path between a first load terminal and a second load terminal and a control terminal. The second semiconductor devices have their load paths connected in series and connected in series to the load path of the first semiconductor device. Each of the second semiconductor devices has its control terminal connected to the load terminal of one of the other second semiconductor devices. One of the second semiconductor devices has its control terminal connected to one of the load terminals of the first semiconductor device.