摘要:
The present disclosure provides reduced substrate coupling for inductors in semiconductor devices. A method of fabricating a semiconductor device having reduced substrate coupling includes providing a substrate having a first region and a second region. The method also includes forming a first gate structure over the first region and a second gate structure over the second region, wherein the first and second gate structures each include a dummy gate. The method next includes forming an inter layer dielectric (ILD) over the substrate and forming a photoresist (PR) layer over the second gate structure. Then, the method includes removing the dummy gate from the first gate structure, thereby forming a trench and forming a metal gate in the trench so that a transistor may be formed in the first region, which includes a metal gate, and an inductor component may be formed over the second region, which does not include a metal gate.
摘要:
The applications discloses a semiconductor device comprising a substrate having a first active region, a second active region, and an isolation region having a first width interposed between the first and second active regions; a P-metal gate electrode over the first active region and extending over at least ⅔ of the first width of the isolation region; and an N-metal gate electrode over the second active region and extending over no more than ⅓ of the first width. The N-metal gate electrode is electrically connected to the P-metal gate electrode over the isolation region.
摘要:
A method of fabricating a laterally diffused metal oxide semiconductor (LDMOS) transistor includes forming a dummy gate over a substrate. A source and a drain are formed over the substrate on opposite sides of the dummy gate. A first silicide is formed on the source. A second silicide is formed on the drain so that an unsilicided region of at least one of the drain or the source is adjacent to the dummy gate. The unsilicided region of the drain provides a resistive region capable of sustaining a voltage load suitable for a high voltage LDMOS application. A replacement gate process is performed on the dummy gate to form a gate.
摘要:
The present disclosure provides a semiconductor device having a transistor. The transistor includes a substrate and first and second wells that are disposed within the substrate. The first and second wells are doped with different types of dopants. The transistor includes a first gate that is disposed at least partially over the first well. The transistor further includes a second gate that is disposed over the second well. The transistor also includes source and drain regions. The source and drain regions are disposed in the first and second wells, respectively. The source and drain regions are doped with dopants of a same type.
摘要:
The disclosure relates to integrated circuit fabrication, and more particularly to a method for fabricating a semiconductor device. An exemplary method for fabricating the semiconductor device comprises providing a substrate; forming pad oxide layers over a frontside and a backside of the substrate; forming hardmask layers over the pad oxide layers on the frontside and the backside of the substrate; and thinning the hardmask layer over the pad oxide layer on the frontside of the substrate.
摘要:
The present disclosure provides reduced substrate coupling for inductors in semiconductor devices. A method of fabricating a semiconductor device having reduced substrate coupling includes providing a substrate having a first region and a second region. The method also includes forming a first gate structure over the first region and a second gate structure over the second region, wherein the first and second gate structures each include a dummy gate. The method next includes forming an inter layer dielectric (ILD) over the substrate and forming a photoresist (PR) layer over the second gate structure. Then, the method includes removing the dummy gate from the first gate structure, thereby forming a trench and forming a metal gate in the trench so that a transistor may be formed in the first region, which includes a metal gate, and an inductor component may be formed over the second region, which does not include a metal gate.
摘要:
The methods and structures described are used to prevent protrusion of contact metal (such as W) horizontally into gate stacks of neighboring devices to affect the work functions of these neighboring devices. The metal gate under contact plugs that are adjacent to devices and share the (or are connected to) metal gate is defined and lined with a work function layer that has good step coverage to prevent contact metal from extruding into gate stacks of neighboring devices. Only modification to the mask layout for the photomask(s) used for removing dummy polysilicon is involved. No additional lithographical operation or mask is needed. Therefore, no modification to the manufacturing processes or additional substrate processing steps (or operations) is involved or required. The benefits of using the methods and structures described above may include increased device yield and performance.
摘要:
The present disclosure provides a method of fabricating a semiconductor device that includes providing a semiconductor substrate, forming a gate structure on the substrate, the gate structure including a dummy gate, removing the dummy gate from the gate structure thereby forming a trench, forming a work function metal layer partially filling the trench, forming a fill metal layer filling a remainder of the trench, performing a chemical mechanical polishing (CMP) to remove portions of the metal layers outside the trench, and implanting Si, C, or Ge into a remaining portion of the fill metal layer.
摘要:
The present disclosure provides reduced substrate coupling for inductors in semiconductor devices. A method of fabricating a semiconductor device having reduced substrate coupling includes providing a substrate having a first region and a second region. The method also includes forming a first gate structure over the first region and a second gate structure over the second region, wherein the first and second gate structures each include a dummy gate. The method next includes forming an inter layer dielectric (ILD) over the substrate and forming a photoresist (PR) layer over the second gate structure. Then, the method includes removing the dummy gate from the first gate structure, thereby forming a trench and forming a metal gate in the trench so that a transistor may be formed in the first region, which includes a metal gate, and an inductor component may be formed over the second region, which does not include a metal gate.
摘要:
The disclosure relates to integrated circuit fabrication, and more particularly to a method for fabricating a semiconductor device. An exemplary method for fabricating the semiconductor device comprises providing a substrate; forming pad oxide layers over a frontside and a backside of the substrate; forming hardmask layers over the pad oxide layers on the frontside and the backside of the substrate; and thinning the hardmask layer over the pad oxide layer on the frontside of the substrate.