摘要:
A method for forming a fin structure on a silicon-on-insulator (SOI) wafer that includes a silicon layer on an insulating layer that is formed over a semiconductor substrate includes etching the silicon layer using a first etch procedure, etching, following the first etch procedure, the silicon layer using a second etch procedure, and etching, following the second etch procedure, the silicon layer using a third etch procedure to form a T-shaped fin structure.
摘要:
Methods are provided for forming contacts for a semiconductor device. The methods may include depositing various materials, such as polysilicon, nitride, oxide, and/or carbon materials, over the semiconductor device. The methods may also include forming a contact hole and filling the contact hole to form the contact for the semiconductor device.
摘要:
Methods are provided for forming contacts for a semiconductor device. The methods may include depositing various materials, such as polysilicon, nitride, oxide, and/or carbon materials, over the semiconductor device. The methods may also include forming a contact hole and filling the contact hole to form the contact for the semiconductor device.
摘要:
A double gate metal-oxide semiconductor field-effect transistor (MOSFET) includes a fin, a first gate and a second gate. The first gate is formed on top of the fin. The second gate surrounds the fin and the first gate. In another implementation, a triple gate MOSFET includes a fin, a first gate, a second gate, and a third gate. The first gate is formed on top of the fin. The second gate is formed adjacent the fin. The third gate is formed adjacent the fin and opposite the second gate.
摘要:
A method of forming multiple fins in a semiconductor device includes forming a structure having an upper surface and side surfaces on the semiconductor device. The semiconductor device includes a conductive layer located below the structure. The method also includes forming spacers adjacent the structure and selectively etching the spacers and the conductive layer to form the fins. The fins may be used in a FinFET device.
摘要:
A method for forming a fin in a semiconductor device that includes a substrate, an insulating layer formed on the substrate, and a conductive layer formed on the insulating layer, includes forming a carbon layer over the conductive layer and forming a mask over the carbon layer. The method further includes etching the mask and carbon layer to form at least one structure, where the structure has a first width, reducing the width of the carbon layer in the at least one structure to a second width, depositing an oxide layer to surround the at least one structure, removing a portion of the oxide layer and the mask, removing the carbon layer to form an opening in a remaining portion of the oxide layer for each of the at least one structure, filling the at least one opening with conductive material, and removing the remaining portion of the oxide layer and a portion of the conductive layer to form the fin.
摘要:
A semiconductor device may include a substrate and an insulating layer formed on the substrate. A fin may be formed on the insulating layer. The fin may include a side surface and a top surface, and the side surface may have a orientation. A first gate may be formed on the insulating layer proximate to the side surface of the fin.
摘要:
A method of manufacturing a semiconductor device may include forming a fin structure on an insulator. The fin structure may include side surfaces and a top surface. The method may also include depositing a gate material over the fin structure and planarizing the deposited gate material. An antireflective coating may be deposited on the planarized gate material, and a gate structure may be formed out of the planarized gate material using the antireflective coating.
摘要:
A method of using carbon spacers for critical dimension reduction can include providing a patterned photoresist layer above a substrate where the patterned photoresist layer has an aperture with a first width, depositing a carbon film over the photoresist layer and etching the deposited carbon film to form spacers on lateral side walls of the aperture of the patterned photoresist layer, etching the substrate using the formed spacers and patterned photoresist layer as a pattern to form a trench having a second width, and removing the patterned photoresist layer and formed spacers using an oxidizing etch.
摘要:
A method of operating an immersion lithography system, including steps of immersing at least a portion of a wafer to be exposed in an immersion medium, wherein the immersion medium comprises at least one bubble; directing an ultrasonic wave through at least a portion of the immersion medium to disrupt and/or dissipate the at least one bubble; and exposing the wafer with an exposure pattern by passing electromagnetic radiation through the immersion medium subsequent to the directing. Also disclosed is a monitoring and control system for an immersion lithography system.