Abstract:
A static random access memory unit structure and layout structure includes two pull-up transistors, two pull-down transistors, two slot contact plugs, and two metal-zero interconnects. Each metal-zero interconnect is disposed on each slot contact plug and a gate of each pull-up transistor, in which, each slot contact plug crosses a drain of each pull-down transistor and a drain of each pull-up transistor and extends to cross an end of each metal-zero interconnect. A gap between the slot contact plugs is smaller than a gap between the metal-zero interconnects.
Abstract:
A manufacturing method of a semiconductor structure includes the following steps. Gate structures are formed on a semiconductor substrate. A source/drain contact is formed between two adjacent gate structures. The source/drain contact is recessed by a recessing process. A top surface of the source/drain contact is lower than a top surface of the gate structure after the recessing process. A stop layer is formed on the gate structures and the source/drain contact after the recessing process. A top surface of the stop layer on the source/drain contact is lower than the top surface of the gate structure. A semiconductor structure includes the semiconductor substrate, the gate structures, a gate contact structure, and the source/drain contact. The source/drain contact is disposed between two adjacent gate structures, and the top surface of the source/drain contact is lower than the top surface of the gate structure.
Abstract:
A semiconductor device includes first fin-shaped structures and second fin-shaped structures, which are separately disposed on a semiconductor substrate. Each of the first and second fin-shaped structures includes a base portion and a top portion protruding from the top portion. The base portions of the second fin-shaped structures are wider than the top portions of the second fin-shaped structures, and the top portions of the second fin-shaped structures are as wide as the top portions of the first fin-shaped structures. Each second fin-shaped structure further includes a recessed region on its sidewall.
Abstract:
A method for fabricating a semiconductor device having a gate structure includes forming a substrate including at least two fin structures protruding from a top surface of the substrate, the substrate including a first recess and a second recess disposed under the first recess, and the first recess and the second recess being disposed between the fin structures, wherein a width of the first recess is larger than a width of the second recess, and the first recess and the second recess form a step structure; forming an insulating structure in the second recess; and forming the gate structure on the insulating structure, wherein the first recess and the second recess are filled up with the gate structure and the insulating structure.
Abstract:
A method for fabricating a semiconductor device comprises: Firstly, a semiconductor fin comprising a first sub-fin and a second sub-fin protruding from a surface of a substrate is provided. An isolation structure having an opening extending therein is then provided in the semiconductor fin to electrically isolate the first sub-fin and the second sub-fin. Subsequently, a first dummy structure disposed on the first isolation structure and having at least one metal layer entirely overlapping on the first isolation structure along a long axis of the semiconductor fin is formed, wherein the metal layer laterally conformally extends downwards into the opening and extends upwards beyond the first isolation structure along the long axis of the semiconductor fin, so as to form a stepped structure overlapping on sidewalls and a bottom of the opening, a portion of the first sub-fin and a portion of the second sub-fin.
Abstract:
A semiconductor process for forming gates with different pitches includes the following steps. A gate layer is formed on a substrate. A first mandrel and a second mandrel are respectively formed on the gate layer. A first spacer material is formed to conformally cover the first mandrel but exposing the second mandrel. A second spacer material is formed to conformally cover the first spacer material and the second mandrel. The first spacer material and the second spacer material are etched to form a first spacer beside the first mandrel and a second spacer beside the second mandrel simultaneously. The first mandrel and the second mandrel are removed. Layouts of the first spacer and the second spacer are transferred to the gate layer, thereby a first gate and a second gate being formed. Moreover, a semiconductor process, which forms the first spacer and the second spacer separately, is also provided.
Abstract:
The present invention provides a semiconductor structure, including a substrate, a first nanowire structure disposed on the substrate, and the first nanowire structure includes a gate region and a source/drain region The diameter of the first nanowire structure within the gate region is different from the diameter of the first nanowire structure within the source/drain region.
Abstract:
A method of forming a line pattern including following steps. First of all, a substrate having a first region and a second region is provided. Next, a directed self-assembly (DSA) material layer is formed on the substrate, covering the first region and the second region. Then, the DSA material layer in the second region is removed, to form a patterned DSA material layer. After these, an annealing process is performed to enable only the DSA material layer in the first region and to form a plurality of first stripe structures and a plurality of second stripe structures arranged alternately in a first direction.
Abstract:
A metal gate structure includes a substrate including a dense region and an iso region. A first metal gate structure is disposed within the dense region, and a second metal gate structure is disposed within the iso region. The first metal gate structure includes a first trench disposed within the dense region, and a first metal layer disposed within the first trench. The second metal gate structure includes a second trench disposed within the iso region, and a second metal layer disposed within the second trench. The height of the second metal layer is greater than the height of the first metal layer.
Abstract:
A semiconductor device comprises a substrate, a semiconductor fin, a first isolation structure and a first dummy structure. The semiconductor fin comprises a first sub-fin and a second sub-fin protruding from a surface of the substrate. The first isolation structure is disposed in the semiconductor fin used for electrically isolating the first sub-fin and the second sub-fin. The first dummy structure is disposed on the first isolation structure and laterally extends beyond the first isolation structure along a long axis of the semiconductor fin, so as to partially overlap a portion of the first sub-fin and a portion of the second sub-fin.