Abstract: Low leakage non-planar access transistors for embedded dynamic random access memory (eDRAM) and methods of fabricating low leakage non-planar access transistors for eDRAM are described. For example, a semiconductor device includes a semiconductor fin disposed above a substrate and including a narrow fin region disposed between two wide fin regions. A gate electrode stack is disposed conformal with the narrow fin region of the semiconductor fin, the gate electrode stack including a gate electrode disposed on a gate dielectric layer. The gate dielectric layer includes a lower layer and an upper layer, the lower layer composed of an oxide of the semiconductor fin. A pair of source/drain regions is included, each of the source/drain regions disposed in a corresponding one of the wide fin regions.

Abstract: Vertical non-planar semiconductor devices for system-on-chip (SoC) applications and methods of fabricating vertical non-planar semiconductor devices are described. For example, a semiconductor device includes a semiconductor fin disposed above a substrate, the semiconductor fin having a recessed portion and an uppermost portion. A source region is disposed in the recessed portion of the semiconductor fin. A drain region is disposed in the uppermost portion of the semiconductor fin. A gate electrode is disposed over the uppermost portion of the semiconductor fin, between the source and drain regions.

Abstract: High voltage three-dimensional devices having dielectric liners and methods of forming high voltage three-dimensional devices having dielectric liners are described. For example, a semiconductor structure includes a first fin active region and a second fin active region disposed above a substrate. A first gate structure is disposed above a top surface of, and along sidewalls of, the first fin active region. The first gate structure includes a first gate dielectric, a first gate electrode, and first spacers. The first gate dielectric is composed of a first dielectric layer disposed on the first fin active region and along sidewalls of the first spacers, and a second, different, dielectric layer disposed on the first dielectric layer and along sidewalls of the first spacers. The semiconductor structure also includes a second gate structure disposed above a top surface of, and along sidewalls of, the second fin active region.

Abstract: Vertical non-planar semiconductor devices for system-on-chip (SoC) applications and methods of fabricating vertical non-planar semiconductor devices are described. For example, a semiconductor device includes a semiconductor fin disposed above a substrate, the semiconductor fin having a recessed portion and an uppermost portion. A source region is disposed in the recessed portion of the semiconductor fin. A drain region is disposed in the uppermost portion of the semiconductor fin. A gate electrode is disposed over the uppermost portion of the semiconductor fin, between the source and drain regions.

Abstract: An impurity source film is formed along a portion of a non-planar semiconductor fin structure. The impurity source film may serve as source of an impurity that becomes electrically active subsequent to diffusing from the source film into the semiconductor fin. In one embodiment, an impurity source film is disposed adjacent to a sidewall surface of a portion of a sub-fin region disposed between an active region of the fin and the substrate and is more proximate to the substrate than to the active area. In further embodiments, the impurity source film may provide a source of dopant that renders the sub-fin region complementarily doped relative to a region of the substrate forming a P/N junction that is at least part of an isolation structure electrically isolating the active fin region from a region of the substrate.

Abstract: Vertical non-planar semiconductor devices for system-on-chip (SoC) applications and methods of fabricating vertical non-planar semiconductor devices are described. For example, a semiconductor device includes a semiconductor fin disposed above a substrate, the semiconductor fin having a recessed portion and an uppermost portion. A source region is disposed in the recessed portion of the semiconductor fin. A drain region is disposed in the uppermost portion of the semiconductor fin. A gate electrode is disposed over the uppermost portion of the semiconductor fin, between the source and drain regions.

Abstract: Low leakage non-planar access transistors for embedded dynamic random access memory (eDRAM) and methods of fabricating low leakage non-planar access transistors for eDRAM are described. For example, a semiconductor device includes a semiconductor fin disposed above a substrate and including a narrow fin region disposed between two wide fin regions. A gate electrode stack is disposed conformal with the narrow fin region of the semiconductor fin, the gate electrode stack including a gate electrode disposed on a gate dielectric layer. The gate dielectric layer includes a lower layer and an upper layer, the lower layer composed of an oxide of the semiconductor fin. A pair of source/drain regions is included, each of the source/drain regions disposed in a corresponding one of the wide fin regions.

Abstract: High voltage three-dimensional devices having dielectric liners and methods of forming high voltage three-dimensional devices having dielectric liners are described. For example, a semiconductor structure includes a first fin active region and a second fin active region disposed above a substrate. A first gate structure is disposed above a top surface of, and along sidewalls of, the first fin active region. The first gate structure includes a first gate dielectric, a first gate electrode, and first spacers. The first gate dielectric is composed of a first dielectric layer disposed on the first fin active region and along sidewalls of the first spacers, and a second, different, dielectric layer disposed on the first dielectric layer and along sidewalls of the first spacers. The semiconductor structure also includes a second gate structure disposed above a top surface of, and along sidewalls of, the second fin active region.

Abstract: Non-planar semiconductor devices having self-aligned fins with top blocking layers and methods of fabricating non-planar semiconductor devices having self-aligned fins with top blocking layers are described. For example, a semiconductor structure includes a semiconductor fin disposed above a semiconductor substrate and having a top surface. An isolation layer is disposed on either side of the semiconductor fin, and recessed below the top surface of the semiconductor fin to provide a protruding portion of the semiconductor fin. The protruding portion has sidewalls and the top surface. A gate blocking layer has a first portion disposed on at least a portion of the top surface of the semiconductor fin, and has a second portion disposed on at least a portion of the sidewalls of the semiconductor fin. The first portion of the gate blocking layer is continuous with, but thicker than, the second portion of the gate blocking layer. A gate stack is disposed on the first and second portions of the gate blocking layer.

Abstract: CMOS-compatible polycide fuse structures and methods of fabricating CMOS-compatible polycide fuse structures are described. In an example, a semiconductor structure includes a substrate. A polycide fuse structure is disposed above the substrate and includes silicon and a metal. A metal oxide semiconductor (MOS) transistor structure is disposed above the substrate and includes a metal gate electrode.

Abstract: Techniques for providing non-volatile antifuse memory elements and other antifuse links are disclosed herein. In some embodiments, the antifuse memory elements are configured with non-planar topology such as FinFET topology. In some such embodiments, the fin topology can be manipulated and used to effectively promote lower breakdown voltage transistors, by creating enhanced-emission sites which are suitable for use in lower voltage non-volatile antifuse memory elements. In one example embodiment, a semiconductor antifuse device is provided that includes a non-planar diffusion area having a fin configured with a tapered portion, a dielectric isolation layer on the fin including the tapered portion, and a gate material on the dielectric isolation layer. The tapered portion of the fin may be formed, for instance, by oxidation, etching, and/or ablation, and in some cases includes a base region and a thinned region, and the thinned region is at least 50% thinner than the base region.

Abstract: Techniques for providing non-volatile antifuse memory elements and other antifuse links are disclosed herein. In some embodiments, the antifuse memory elements are configured with non-planar topology such as FinFET topology. In some such embodiments, the fin topology can be manipulated and used to effectively promote lower breakdown voltage transistors, by creating enhanced-emission sites which are suitable for use in lower voltage non-volatile antifuse memory elements. In one example embodiment, a semiconductor antifuse device is provided that includes a non-planar diffusion area having a fin configured with a tapered portion, a dielectric isolation layer on the fin including the tapered portion, and a gate material on the dielectric isolation layer. The tapered portion of the fin may be formed, for instance, by oxidation, etching, and/or ablation, and in some cases includes a base region and a thinned region, and the thinned region is at least 50% thinner than the base region.

Abstract: High voltage three-dimensional devices having dielectric liners and methods of forming high voltage three-dimensional devices having dielectric liners are described. For example, a semiconductor structure includes a first fin active region and a second fin active region disposed above a substrate. A first gate structure is disposed above a top surface of, and along sidewalls of, the first fin active region. The first gate structure includes a first gate dielectric, a first gate electrode, and first spacers. The first gate dielectric is composed of a first dielectric layer disposed on the first fin active region and along sidewalls of the first spacers, and a second, different, dielectric layer disposed on the first dielectric layer and along sidewalls of the first spacers. The semiconductor structure also includes a second gate structure disposed above a top surface of, and along sidewalls of, the second fin active region.

Abstract: High voltage three-dimensional devices having dielectric liners and methods of forming high voltage three-dimensional devices having dielectric liners are described. For example, a semiconductor structure includes a first fin active region and a second fin active region disposed above a substrate. A first gate structure is disposed above a top surface of, and along sidewalls of, the first fin active region. The first gate structure includes a first gate dielectric composed of a first dielectric layer disposed on the first fin active region, and a second, different, dielectric layer disposed on the first dielectric layer. The semiconductor structure also includes a second gate structure disposed above a top surface of, and along sidewalls of, the second fin active region. The second gate structure includes a second gate dielectric composed of the second dielectric layer disposed on the second fin active region.

Abstract: Precision resistors for non-planar semiconductor device architectures are described. In a first example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. A resistor structure is disposed above the first semiconductor fin but not above the second semiconductor fin. A transistor structure is formed from the second semiconductor fin but not from the first semiconductor fin. In a second example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. An isolation region is disposed above the substrate, between the first and second semiconductor fins, and at a height less than the first and second semiconductor fins. A resistor structure is disposed above the isolation region but not above the first and second semiconductor fins. First and second transistor structures are formed from the first and second semiconductor fins, respectively.

Abstract: Precision resistors for non-planar semiconductor device architectures are described. In a first example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. A resistor structure is disposed above the first semiconductor fin but not above the second semiconductor fin. A transistor structure is formed from the second semiconductor fin but not from the first semiconductor fin. In a second example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. An isolation region is disposed above the substrate, between the first and second semiconductor fins, and at a height less than the first and second semiconductor fins. A resistor structure is disposed above the isolation region but not above the first and second semiconductor fins. First and second transistor structures are formed from the first and second semiconductor fins, respectively.

Abstract: Techniques are disclosed for forming transistor architectures having extended recessed spacer and source/drain (S/D) regions. In some embodiments, a recess can be formed, for example, in the top of a fin of a fin-based field-effect transistor (finFET), such that the recess allows for forming extended recessed spacers and S/D regions in the finFET that are adjacent to the gate stack. In some instances, this configuration provides a higher resistance path in the top of the fin, which can reduce gate-induced drain leakage (GIDL) in the finFET. In some embodiments, precise tuning of the onset of GIDL can be provided. Some embodiments may provide a reduction in junction leakage (Lb) and a simultaneous increase in threshold voltage (VT). The disclosed techniques can be implemented with planar and non-planar fin-based architectures and can be used in standard metal-oxide-semiconductor (MOS) and complementary MOS (CMOS) process flows, in some embodiments.

Abstract: Precision resistors for non-planar semiconductor device architectures are described. In a first example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. A resistor structure is disposed above the first semiconductor fin but not above the second semiconductor fin. A transistor structure is formed from the second semiconductor fin but not from the first semiconductor fin. In a second example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. An isolation region is disposed above the substrate, between the first and second semiconductor fins, and at a height less than the first and second semiconductor fins. A resistor structure is disposed above the isolation region but not above the first and second semiconductor fins. First and second transistor structures are formed from the first and second semiconductor fins, respectively.

Abstract: Precision resistors for non-planar semiconductor device architectures are described. In a first example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. A resistor structure is disposed above the first semiconductor fin but not above the second semiconductor fin. A transistor structure is formed from the second semiconductor fin but not from the first semiconductor fin. In a second example, a semiconductor structure includes first and second semiconductor fins disposed above a substrate. An isolation region is disposed above the substrate, between the first and second semiconductor fins, and at a height less than the first and second semiconductor fins. A resistor structure is disposed above the isolation region but not above the first and second semiconductor fins. First and second transistor structures are formed from the first and second semiconductor fins, respectively.

Abstract: Provided are devices having at least three and at least four different types of transistors wherein the transistors are distinguished at least by the thicknesses and or compositions of the gate dielectric regions. Methods for making devices having three and at least four different types of transistors that are distinguished at least by the thicknesses and or compositions of the gate dielectric regions are also provided.