Abstract:
The present invention provides an overlay mark information, including at least a pair of first overlay mark patterns disposed in a first layer, each first overlay mark pattern consisting of a plurality of first mark units arranged along a first direction, where each first mark unit includes at least one first pattern and at least one second pattern, and the dimension of the first pattern is different from the dimension of the second pattern. The overlay mark information also includes at least a pair of second overlay patterns disposed in the first layer, each second overlay mark pattern consisting of a plurality of second mark units arranged along the first direction, where the pattern of each first mark unit is the same as the pattern of each second mark unit after 180 degrees rotated.
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.
Abstract:
A semiconductor device includes a semiconductor structure, a plurality of gate structures, at least one source/drain structure, at least one trench, a dielectric pattern, and a conductive structure. The gate structures are disposed on the semiconductor structure. The source/drain structure is disposed between two adjacent gate structures. The trench is disposed between the two adjacent gate structures and corresponding to the source/drain structure. The dielectric pattern is disposed on sidewalls of the trench. The conductive structure is disposed in the trench and electrically connected to the source/drain structure. The conductive structure includes a first portion surrounded by the dielectric pattern and a second portion connected to the source/drain structure, and the first portion is disposed on the second portion. A width of the first portion is smaller than a width of the second portion.
Abstract:
A semiconductor device includes a semiconductor structure, a plurality of gate structures, at least one source/drain structure, at least one trench, a dielectric pattern, and a conductive structure. The gate structures are disposed on the semiconductor structure. The source/drain structure is disposed between two adjacent gate structures. The trench is disposed between the two adjacent gate structures and corresponding to the source/drain structure. The dielectric pattern is disposed on sidewalls of the trench. The conductive structure is disposed in the trench and electrically connected to the source/drain structure. The conductive structure includes a first portion surrounded by the dielectric pattern and a second portion connected to the source/drain structure, and the first portion is disposed on the second portion. A width of the first portion is smaller than a width of the second portion.
Abstract:
A method for manufacturing a semiconductor device having metal gate includes following steps. A substrate is provided. At least a transistor including a dummy gate is formed on the substrate and the transistor is embedded in an interlayer dielectric (ILD) layer. A first removal process is performed to remove a portion of the dummy gate to form a first recess in the transistor. An etching process is subsequently performed to remove a portion of the ILD layer to widen the first recess and to form a widened first recess. A second removal process is subsequently performed to remove the dummy gate entirely and to form a second recess in the transistor. A metal gate is formed in the second recess and followed by forming an insulating cap layer on the metal gate.
Abstract:
A semiconductor device is disclosed. The semiconductor device includes: a substrate having a gate structure thereon and a first interlayer dielectric (ILD) layer surrounding the gate structure; a first hard mask on the gate structure; and a second hard mask on the gate structure, wherein the first hard mask is adjacent to two sides of the second hard mask and the first hard mask and the first hard mask comprises silicon nitride.
Abstract:
A manufacturing method of a patterned structure of a semiconductor device includes following steps. A plurality of support features are formed on a substrate. A first conformal spacer layer is formed on the support features and a surface of the substrate, a second conformal spacer layer is formed on the first conformal spacer layer, and a covering layer is formed on the second conformal spacer layer. A gap between the support features is filled with the first conformal spacer layer, the second conformal spacer layer, and the covering layer. A first process is performed to remove a part of the covering layer, the second conformal spacer layer, and the first conformal spacer layer. A second process is performed to remove the support features or the first conformal spacer layer between the support feature and the second conformal spacer layer to expose a part of the surface of the substrate.
Abstract:
A manufacturing method of a conductive structure in a semiconductor device includes the following steps. A plurality of gate structures are formed on a semiconductor structure, and a first dielectric layer is formed in space between the gate structures. A first process is then performed to remove at least a part of the first dielectric layer in the space between the gate structures. A second dielectric layer is then formed and covers the gate structures so as to form at least one air void in the space between the gate structures. A second process is performed to form at least one opening penetrating the second dielectric layer and exposing the air void. The air void exposed by the opening is then filled with at least one conductive material for forming a conductive structure between the gate structures.
Abstract:
A semiconductor device and a method of forming the same, the semiconductor device includes a plurality of fin shaped structures and a dummy gate structure. The fin shaped structures are disposed in a substrate, where at least one of the fin shaped structures has a tipped end. The dummy gate structure is disposed on the substrate, and includes an extending portion covering the tipped end.
Abstract:
A method of fabricating an integrated circuit includes the following steps. A first reticle is used to form a first pattern and a first alignment mark and a second reticle is used to form a second pattern and a second alignment mark in a same layer. A third reticle is aligned to the first alignment mark and the second alignment mark, to obtain an overlay correction value; additionally, a third reticle is aligned to the first alignment mark to obtain a first overlay correction value, a third reticle is aligned to the second alignment mark to obtain a second overlay correction value, and a total overlay correction value is obtained by trading off the first overlay correction value and the second overlay correction value. The third reticle is used to form a third pattern by aligning the third reticle with the total overlay correction value.