Abstract:
A semiconductor structure is provided. The semiconductor structure includes a functional cell region including an n-type functional transistor and a p-type functional transistor. The semiconductor structure also includes a first power transmission cell region including a first cutting feature and a first contact rail in the first cutting feature. The semiconductor structure also includes a first power rail electrically connected to a source terminal of the p-type functional transistor and the first contact rail of the first power transmission cell region. The semiconductor structure also includes a second power transmission cell region adjacent to the first power transmission cell and including a second cutting feature and second contact rail in the second cutting feature. The semiconductor structure also includes an insulating strip extending from the first cutting feature to the second cutting feature in a first direction.
Abstract:
A method includes providing a substrate having a first region and a second region, forming a fin protruding from the first region, where the fin includes a first SiGe layer and a stack alternating Si layers and second SiGe layers disposed over the first SiGe layer and the first SiGe layer has a first concentration of Ge and each of the second SiGe layers has a second concentration of Ge that is greater than the first concentration, recessing the fin to form an S/D recess, recessing the first SiGe layer and the second SiGe layers exposed in the S/D recess, where the second SiGe layers are recessed more than the first SiGe layer, forming an S/D feature in the S/D recess, removing the recessed first SiGe layer and the second SiGe layers to form openings, and forming a metal gate structure over the fin and in the openings.
Abstract:
A memory cell includes a device layer including a plurality of transistors and an interconnect structure disposed over the device layer. Each of the transistors includes a gate structure extending lengthwise in a first direction. The interconnect structure includes a bottommost metal line layer electrically coupled to the transistors in the device layer. The bottommost metal line layer includes metal lines arranged in first, second, third, fourth, fifth, and sixth metal tracks in order from first to sixth along the first direction. A distance between any adjacent two of the first, second, third, fourth, fifth, and six metal tracks measured along the first direction is uniform. The first metal track includes a metal line electrically coupled to an electric ground of the memory cell. The sixth metal track includes a metal line electrically coupled to a power supply of the memory cell.
Abstract:
A memory cell includes a first active region providing a plurality of first nano-structures for a write-port pass-gate transistor, a second active region providing a plurality of second nano-structures for a write-port pull-up transistor, and a third active region providing a plurality of third nano-structures for a read-port pull-down transistor. The first active region has a first width, the second active region has a second width, and the third active region having a third width. The third width is larger than the first width, and the first width is larger than the second width.
Abstract:
A magnetic device structure is provided. In some embodiments, the structure includes one or more first transistors, a magnetic device disposed over the one or more first transistors, a plurality of magnetic columns surrounding sides of the one or more first transistors and the magnetic device, a first magnetic layer disposed over the magnetic device and in contact with the plurality of magnetic columns, and a second magnetic layer disposed below the one or more first transistors and in contact with the plurality of magnetic columns.
Abstract:
Some embodiments relate to a memory device. The memory device includes a transistor having a first source/drain (S/D) region and a second S/D region, a first S/D contact disposed over the first S/D region, the first S/D contact extending lengthwise in a first direction, a second S/D contact disposed over the second S/D region, a first via landing on the first S/D contact, the first via extending lengthwise in a second direction different from the first direction, a second via landing on the second S/D contact, the first via having a length measured in the second direction that is larger than the second via, a first conductive line coupled to the first via, a second conductive line coupled to the second via, and a memory structure disposed above the transistor and coupled to the second conductive line.
Abstract:
A static random-access memory (SRAM) structure and the manufacturing method thereof are disclosed. An exemplary SRAM structure includes a first source/drain (S/D) feature and a second S/D feature formed in an interlayer dielectric layer (ILD) of a bit cell region of the SRAM structure, a frontside via electrically connecting to the first S/D feature, and a first backside via electrically connecting to the second S/D feature. The first S/D feature and the second S/D feature are of a same type.
Abstract:
A method of using a static random access memory (SRAM) includes pre-discharging a data line to a reference voltage, activating a bit cell connected to the data line, wherein the bit cell comprises a p-type pass gate, and exchanging bit information between the data line and the activated bit cell.
Abstract:
An embodiment is a method for forming a static random access memory (SRAM) cell. The method comprises forming transistors on a semiconductor substrate and forming a first linear intra-cell connection and a second linear intra-cell connection. Longitudinal axes of the active areas of the transistors are parallel. A first pull-down transistor and a first pull-up transistor share a first common gate structure, and a second pull-down transistor and a second pull-up transistor share a second common gate structure. The first linear intra-cell connection electrically couples active areas of the first pull-down transistor and the first pull-up transistor to the second common gate structure. The second linear intra-cell connection electrically couples active areas of the second pull-down transistor and the second pull-up transistor to the first common gate structure.
Abstract:
A memory cell includes first and second active regions and first and second gate structures. The first gate structure engages the first and second active regions in forming a first pull-down transistor and a first pull-up transistor, respectively, and the second gate structure engages the first and second active regions in forming a second pull-down transistor and a second pull-up transistor, respectively. A first frontside source/drain contact is disposed above and electrically couples to a first common source/drain region of the first and second pull-down transistors. A first backside via is disposed under and electrically couples to the first common source/drain region. A first backside metal line is disposed under and electrically couples to the first backside via.