摘要:
A semiconductor structure and method of fabricating the same are disclosed. In an embodiment, the structure includes a first substrate having a buried plate or plates in the substrate. Each buried plate includes at least one buried plate contact, and a plurality of deep trench capacitors disposed about the at least one buried plate contact. A first oxide layer is disposed over the first substrate. The deep trench capacitors and buried plate contacts in the first substrate may be accessed for use in a variety of memory and decoupling applications.
摘要:
A structure forming a metal-insulator-metal (MIM) trench capacitor is disclosed. The structure comprises a multi-layer substrate having a metal layer and at least one dielectric layer. A trench is etched into the substrate, passing through the metal layer. The trench is lined with a metal material that is in contact with the metal layer, which comprises a first node of a capacitor. A dielectric material lines the metal material in the trench. The trench is filled with a conductor. The dielectric material that lines the metal material separates the conductor from the metal layer and the metal material lining the trench. The conductor comprises a second node of the capacitor.
摘要:
Semiconductor-on-oxide structures and related methods of forming such structures are disclosed. In one case, a method includes: forming a first dielectric layer over a substrate; forming a first conductive layer over the first dielectric layer, the first conductive layer including one of a metal or a silicide; forming a second dielectric layer over the first conductive layer; bonding a donor wafer to the second dielectric layer, the donor wafer including a donor dielectric and a semiconductor layer; cleaving the donor wafer to remove a portion of the donor semiconductor layer; forming at least one semiconductor isolation region from an unremoved portion of the donor semiconductor layer; and forming a contact to the first conductive layer through donor dielectric and the second dielectric layer.
摘要:
Embodiments of the invention provide an integrated circuit for an embedded dynamic random access memory (eDRAM), a semiconductor-on-insulator (SOI) wafer in which such an integrated circuit may be formed, and a method of forming an eDRAM in such an SOI wafer. One embodiment of the invention provides an integrated circuit for an embedded dynamic random access memory (eDRAM) comprising: a semiconductor-on-insulator (SOI) wafer including: an n-type substrate; an insulator layer atop the n-type substrate; and an active semiconductor layer atop the insulator layer; a plurality of deep trenches, each extending from a surface of the active semiconductor layer into the n-type substrate; a dielectric liner along a surface of each of the plurality of deep trenches; and an n-type conductor within each of the plurality of deep trenches, the dielectric liner separating the n-type conductor from the n-type substrate; wherein the n-type substrate, the dielectric liner, and the n-type conductor form a buried plate, a node dielectric, and a node plate, respectively, of a cell capacitor.
摘要:
An embodiment is a method includes writing a first set of memory device parameters to a first mode register in a memory device, wherein the first set of memory device parameters correspond to a first frequency, monitoring selected parameters for the memory system while the memory device operates at the first frequency and predicting a second frequency that the memory device will operate at subsequent to the first frequency, the predicting being based on the monitored selected parameters. The method further includes writing a second set of memory device parameters to second mode register in the memory device, receiving a frequency change request at a memory controller associated with the memory device, the frequency change request to operate at a new frequency and updating the first mode register with the second set of memory device parameters from the second mode register responsive to the new frequency being equal to the second frequency.
摘要:
A direct sense memory array architecture and method of operation includes a plurality of memory cells where a bit-line restore voltage level is optimized to reduce memory cell leakage during a first inactive period, and a bit-line preset voltage level is optimized for signal sensing during a second active period. The architecture includes a sense head having of a pair of cross coupled gated inverters. Each of the gated inverters is responsive to a first and second gate control signal which can independently gate a power supply to the inverter circuit within each gated inverter. During the second active period, a first gated inverter senses the data state on the first bit-line, and a second gated inverter performs a preset and write-back function on the first bit-line.
摘要:
A semiconductor structure is disclosed. The semiconductor structure includes an active semiconductor layer, a semiconductor device having a gate disposed on top of the active semiconductor layer, and source and drain regions and a body/channel region disposed within the active semiconductor layer, an insulator layer having a first and second side, the first side being adjacent to the active semiconductor layer, a substrate disposed adjacent to the second side of the insulator layer, a body contact disposed under the body/channel region and in the insulator layer. The body contact electrically connects with and contacts with the body/channel region of the semiconductor device and the substrate, to thereby form an ohmic contact and to eliminate floating body effects.
摘要:
A system to evaluate charge pump output may include a comparator to compare a charge pump output voltage to a reference voltage to generate a comparison result. The system may also include a divider to divide down a clock signal. The system may further include a logical conjunction unit to operate on the comparison result and the divided down clock signal.
摘要:
According to an embodiment of the invention, a sense amplifier for, e.g., an array of DRAM data storage cells includes one or more amplifier stages connected together in series. The amplifier stages together form the sense amplifier for the DRAM array. Each amplifier stage includes an isolation capacitor to reduce to a relatively small value any mismatch between the threshold voltages of the transistors within each amplifier stage. A bitline from the DRAM array of memory cells connects to the first amplifier stage. An output from the last amplifier stage connects to a write back switch, the output of which connects to the bitline at the input of the first amplifier stage.
摘要:
A system to generate a reference for a charge pump may include a diode-connected transistor providing a reference voltage, and an output transistor. The system may also include a reference circuit to provide a current that is substantially temperature insensitive and the reference circuit delivers the current across the diode-connected transistor thereby enabling the reference voltage to move with processing of the diode-connected transistor.