Abstract:
A native p-type metal oxide semiconductor (PMOS) device that exhibits a low threshold voltage and a high drive current over a varying range of short channel lengths and a method for fabricating the same is discussed in the present disclosure. The source and drain regions of the native PMOS device, each include a strained region, a heavily doped raised region, and a lightly doped region. The gate region includes a stacked layer of a gate oxide having a high-k dielectric material, a metal, and a contact metal. The high drive current of the native PMOS device is primarily influenced by the increased carrier mobility due to the strained regions, the lower drain resistance due to the raised regions, and the higher gate capacitance due to the high-k gate oxide of the native PMOS device.
Abstract:
A field effect transistor (FET) having one or more fins provides an extended current path as compared to conventional finFETs. A raised source terminal is disposed on a fin adjacent to a sidewall spacer of a gate structure. The drain terminal and a first portion of the gate structure overlie a first well of a first conductivity type. A raised drain terminal is disposed such that it is spaced apart from the gate structure sidewalls. In some embodiments the drain terminal is disposed on a second, separate fin. the drain terminal and a second portion of the gate structure overlie a second well of a second conductivity type.
Abstract:
A semiconductor device based on split multi-gate field-effect transistor radio frequency devices is provided. The semiconductor device includes a substrate and a gate structure above the substrate and orthogonal to a channel axis. The semiconductor device also includes a semiconductor fin structure above the substrate along the channel axis. The semiconductor also includes a gate oxide region beneath the gate structure and in contact with the gate structure and the semiconductor fin structure. The gate oxide region has a first region with a first thickness and a first length. The gate oxide region also has a second region with a second thickness and a second length. The first thickness is greater than the second thickness. The first region and the second region are formed side-by-side along the channel axis.
Abstract:
According to one embodiment, a one-time programmable (OTP) device having a lateral diffused metal-oxide-semiconductor (LDMOS) structure comprises a pass gate including a pass gate electrode and a pass gate dielectric, and a programming gate including a programming gate electrode and a programming gate dielectric. The programming gate is spaced from the pass gate by a drain extension region of the LDMOS structure. The LDMOS structure provides protection for the pass gate when a programming voltage for rupturing the programming gate dielectric is applied to the programming gate electrode. A method for producing such an OTP device comprises forming a drain extension region, fabricating a pass gate over a first portion of the drain extension region, and fabricating a programming gate over a second portion of the drain extension region.
Abstract:
A programmable cell includes a semiconductor-on-insulator substrate, a program gate, and a word line gate. The semiconductor-on-insulator substrate includes a semiconductor layer. The semiconductor layer includes a first doped source/drain region, a second doped source/drain region and a region comprising germanium. The program gate is disposed above the region comprising germanium and includes a first gate dielectric layer disposed below a gate conductor. The word line gate is disposed between the first doped source/drain region and the second doped source/drain region.
Abstract:
A programmable cell includes a split gate structure. The split gate structure includes a thin gate dielectric region and a thick gate dielectric region disposed below a gate conductor. A thickness of the thick oxide region is more than a thickness of the thin oxide region. The programmable cell can be fabricated using angle doping to dope an area associated with the thin dielectric region.
Abstract:
A semiconductor device includes a first well that is disposed in a semiconductor substrate. The semiconductor device further includes a second well that is disposed in the semiconductor substrate. The semiconductor device further includes a source region, a drain region, and a gate structure between the source region and the drain region. The gate structure is disposed above the first well. The source region includes a first conducting contact above the first well and. The drain region includes a second conducting contact above the second well, the drain region being connected with the second well at least partially through a first epi region. The first epi region and the second well are configured to lower a first driving voltage applied on the source region and the drain region to a second voltage applied on the gate structure.
Abstract:
A capacitor structure in a semiconductor device includes a semiconductor substrate having a top surface and a bottom surface opposite the top surface, an isolation region having a top surface and a bottom surface, opposite the top surface, the bottom surface of the isolation region being disposed on the top surface of the semiconductor substrate. The capacitor structure also includes a gate terminal structure disposed on the top surface of the isolation region and a diffusion contact structure disposed on the top surface of the isolation region and arranged parallel to the gate terminal structure. In some aspects, the gate terminal structure is connected to a first contact node and the diffusion contact structure is connected to a second contact node, in which the first and second contact nodes form opposing nodes of the capacitor structure.
Abstract:
An anti-fuse device for fin field-effect transistor (finFET) technology includes a dummy gate, an electrically conductive contact, and a diffusion contact. The dummy gate is formed over an end-corner of a fin. The electrically conductive contact is disposed on a portion of the dummy gate and can be used as a first electrode of the device. The diffusion contact is disposed over the fin and can be used as a second electrode of the device.
Abstract:
A semiconductor device includes a first well and a second well implanted in a semiconductor substrate. The semiconductor device further includes a gate structure above the first and second wells between a raised source structure and a raised drain structure. The raised source structure above is in contact with the first well and connected with the gate structure through a first semiconductor fin structure. The raised drain structure above and in contact with the second well and connected with a second semiconductor fin structure. The second semiconductor fin structure includes at least a gap and a lightly doped portion.