Abstract:
A method of lithographically cutting a Mx line before the Mx line is lithographically defined by patterning and the resulting 2DSAV device are provided. Embodiments include forming an a-Si dummy metal layer over a SiO2 layer; forming a first softmask stack over the a-Si dummy metal layer; patterning a plurality of vias through the first softmask stack down to the SiO2 layer; removing the first soft mask stack; forming first and second etch stop layers over the a-Si dummy metal layer, the first etch stop layer formed in the plurality of vias; forming a-Si mandrels on the second etch stop layer; forming oxide spacers on opposite sides of each a-Si mandrel; removing the a-Si mandrels; forming a-Si dummy metal lines in the a-Si dummy metal layer below the oxide spacers; and forming a SiOC layer between the a-Si dummy metal lines.
Abstract:
Three-dimensional electrostatic discharge (ESD) semiconductor devices are fabricated together with three-dimensional non-ESD semiconductor devices. For example, an ESD diode and FinFET are fabricated on the same bulk semiconductor substrate. A spacer merger technique is used in the ESD portion of a substrate to create double-width fins on which the ESD devices can be made larger to handle more current.
Abstract:
A method includes providing a gate structure having a gate, a first spacer along at least one side of the gate and an interlayer dielectric on at least one of the gate and the first spacer. The interlayer dielectric is removed to reveal the first spacer. The first spacer is removed and a second spacer is deposited on at least one side of the gate. The second spacer is formed of material having a lower dielectric constant than the first spacer.
Abstract:
A method of forming a metal gate diode ESD protection device and the resulting device are provided. Embodiments include forming a metal gate diode including a metal gate on a substrate; forming an n-type cathode on a first side of the metal gate diode; and forming a p-type anode on a second side of the metal gate diode, opposite the first side.
Abstract:
Methods for forming FinFET source/drain regions with a single reticle and the resulting devices are disclosed. Embodiments may include forming a first fin and a second fin above a substrate, forming a gate crossing over the first fin and the second fin, removing portions of the first fin and the second fin on both sides the gate, forming silicon phosphorous tops on the first fin and the second fin in place of the portions, removing the silicon phosphorous tops on the first fin, and forming silicon germanium tops on the first fin in place of the silicon phosphorous tops.
Abstract:
Semiconductor devices and methods of fabricating the semiconductor devices with cross coupled contacts using patterning for cross couple pick-up are disclosed. One method includes, for instance: obtaining an intermediate semiconductor device; performing a first lithography to pattern a first shape; performing a second lithography to pattern a second shape overlapping a portion of the first shape; processing the first shape and the second shape to form an isolation region at the overlap; and forming four regions separated by the isolation region. An intermediate semiconductor device is also disclosed.
Abstract:
A method of forming 2D self-aligned vias before forming a subsequent metal layer and reducing capacitance of the resulting device and the resulting device are provided. Embodiments include forming dummy metal lines in a SiOC layer and extending in a first direction; replacing the dummy metal lines with metal lines, each metal line having a nitride cap; forming a softmask stack over the nitride cap and the SiOC layer; patterning a plurality of vias through the softmask stack down to the metal lines, the plurality of vias self-aligned along a second direction; removing the softmask stack; forming second dummy metal lines over the metal lines and extending in the second direction; forming a second SiOC layer between the dummy second metal lines on the SiOC layer; and replacing the dummy second metal lines with second metal lines, the second metal lines electrically connected to the metal lines through a via.
Abstract:
There is set forth herein a field effect transistor (FET) configured as an ESD protection device. In one embodiment, the FET can be configured to operate in a snapback operating mode. The FET can include a semiconductor substrate, a gate formed on the substrate and a dummy gate formed on the substrate spaced apart from the gate.
Abstract:
Three-dimensional electrostatic discharge (ESD) semiconductor devices are fabricated together with three-dimensional non-ESD semiconductor devices. For example, an ESD diode and FinFET are fabricated on the same bulk semiconductor substrate. A spacer merger technique is used in the ESD portion of a substrate to create double-width fins on which the ESD devices can be made larger to handle more current.
Abstract:
Devices and methods for forming semiconductor devices with metal-titanium oxide contacts are provided. One intermediate semiconductor device includes, for instance: a substrate, at least one field-effect transistor disposed on the substrate, a first contact region positioned over at least a first portion of the at least one field-effect transistor between a spacer and an interlayer dielectric, and a second contact region positioned over at least a second portion of the at least one field-effect transistor between a spacer and an interlayer dielectric. One method includes, for instance: obtaining an intermediate semiconductor device and forming at least one contact on the intermediate semiconductor device.