摘要:
A memory cell array includes memory cells with storage capacitor and an access transistor. The access transistors are formed in active areas. The memory cell array further includes bit lines oriented in a first direction and word lines oriented in a second direction. The active areas extend in the second direction. The bottom side of each gate electrode of the transistors is disposed beneath the bottom side of each word line. In addition, the word lines are disposed above the bit lines.
摘要:
A connecting structure connects a storage electrode of a trench capacitor and a selection transistor that are at least partially formed in a semiconductor substrate. The connecting structure includes a portion of an intermediate layer disposed adjacent to a surface of the storage electrode, and an electrically conducting material disposed adjacent to the intermediate layer and electrically connected to a semiconductor substrate surface portion adjacent to the selection transistor, wherein a part of the connecting structure is disposed above the semiconductor substrate surface so as to be adjacent to a horizontal substrate surface portion.
摘要:
A method for manufacturing a surface strap connection between a trench capacitor and a selection transistor includes providing a masking material on a surface of a semiconductor substrate in areas where no trench capacitors have been formed. An undoped semiconductor layer having vertical and horizontal areas is applied. An oblique ion implantation is performed such that a vertical area of the semiconductor layer on which the connecting structure is to be formed is not doped. After removal of the undoped portion of the semiconductor layer, the exposed portion of the masking material is laterally etched, one part of the substrate surface is exposed, and the doped part of the semiconductor layer is removed. An electrically conducting connection material is applied so that an electrical contact exists between the exposed portion of the substrate surface and the storage electrode.
摘要:
One embodiment relates to an integrated circuit formed on a semiconductor body having interconnect between source/drain regions of a first and second transistor. The interconnect includes a metal body arranged underneath the surface of the semiconductor body. A contact element establishes electrical contact between the metal body and the source/drain regions of the first and second transistor. The contact element extends along a connecting path between the source/drain regions of the first and second transistors. Other methods, devices, and systems are also disclosed.
摘要:
An integrated circuit includes a memory cell array comprising memory cells with a transistor. The transistors are formed in active areas. The memory cell array further includes bit lines oriented in a first direction and word lines oriented in a second direction. The active areas extend in the second direction. The bottom side of each gate electrode of the transistors is disposed under the bottom side of each word line. In addition, the word lines are disposed over the bit lines.
摘要:
A method for fabricating a trench capacitor with an insulation collar in a substrate, which is electrically connected to the substrate on one side via a buried contact, using a hard mask with a corresponding mask opening.
摘要:
One embodiment relates to an integrated circuit formed on a semiconductor body having interconnect between source/drain regions of a first and second transistor. The interconnect includes a metal body arranged underneath the surface of the semiconductor body. A contact element establishes electrical contact between the metal body and the source/drain regions of the first and second transistor. The contact element extends along a connecting path between the source/drain regions of the first and second transistors. Other methods, devices, and systems are also disclosed.
摘要:
A gate electrode layer is doped in a first section of a semiconductor substrate. By means of a patterning, encapsulated gate electrodes emerge from the gate electrode layer, which gate electrodes are arranged in a high packing density in a first section and are assigned to selection transistors of memory cells, and are arranged in a low packing density in a second section and are assigned to transistors of logic circuits. After a processing of the selection transistors, the encapsulated gate electrodes are uncovered in the second section and are subsequently doped in the same way in each case simultaneously with the respectively assigned source/drain regions. Together with a subsequent siliciding of the gate electrodes and of the source/drain regions, the performance of the transistors in the second section is significantly increased with little additional outlay.
摘要:
A gate electrode layer is doped in a first section of a semiconductor substrate. By means of a patterning, encapsulated gate electrodes emerge from the gate electrode layer, which gate electrodes are arranged in a high packing density in a first section and are assigned to selection transistors of memory cells, and are arranged in a low packing density in a second section and are assigned to transistors of logic circuits. After a processing of the selection transistors, the encapsulated gate electrodes are uncovered in the second section and are subsequently doped in the same way in each case simultaneosly with the respectively assigned source/drain regions. Together with a subsequent siliciding of the gate electrodes and of the source/drain regions, the performance of the transistors in the second section is significantly increased with little additional outlay.
摘要:
In one embodiment, a memory cell includes a bit line arranged in a semiconductor substrate and a bit line contact region arranged adjacent the bit line. A word line is arranged above the bit line contact region in a trench formed in the semiconductor substrate. A generally U-shaped insulating layer is arranged in a bottom region of the trench and separates the bit line and the bit line contact region from the word line.