摘要:
A method for fin field effect transistor (finFET) device formation includes forming a plurality of fins on a substrate; forming a gate region over the plurality of fins; and forming isolation areas for the finFET device after formation of the gate region, wherein forming the isolation areas for the finFET device comprises performing one of oxidation or removal of a subset of the plurality of fins.
摘要:
A method for fin field effect transistor (finFET) device formation includes forming a plurality of fins on a substrate; forming a gate region over the plurality of fins; and forming isolation areas for the finFET device after formation of the gate region, wherein forming the isolation areas for the finFET device comprises performing one of oxidation or removal of a subset of the plurality of fins.
摘要:
A finFET with self-aligned punchthrough stopper and methods of manufacture are disclosed. The method includes forming spacers on sidewalls of a gate structure and fin structures of a finFET device. The method further includes forming a punchthrough stopper on exposed sidewalls of the fin structures, below the spacers. The method further includes diffusing dopants from the punchthrough stopper into the fin structures. The method further includes forming source and drain regions adjacent to the gate structure and fin structures.
摘要:
At least one drain-side surfaces of a field effect transistor (FET) structure, which can be a structure for a planar FET or a fin FET, is structurally damaged by an angled ion implantation of inert or electrically active dopants, while at least one source-side surface of the transistor is protected from implantation by a gate stack and a gate spacer. Epitaxial growth of a semiconductor material is retarded on the at least one structurally damaged drain-side surface, while epitaxial growth proceeds without retardation on the at least one source-side surface. A raised epitaxial source region has a greater thickness than a raised epitaxial drain region, thereby providing an asymmetric FET having lesser source-side external resistance than drain-side external resistance, and having lesser drain-side overlap capacitance than source-side overlap capacitance.
摘要:
Capacitors include a first electrical terminal that has fins formed from doped semiconductor on a top layer of doped semiconductor on a semiconductor-on-insulator substrate; a second electrical terminal that has an undoped material having bottom surface shape that is complementary to the first electrical terminal, such that an interface area between the first electrical terminal and the second electrical terminal is larger than a capacitor footprint; and a dielectric layer separating the first and second electrical terminals.
摘要:
A method for making dual-epi FinFETs is described. The method includes adding a first epitaxial material to an array of fins. The method also includes covering at least a first portion of the array of fins using a first masking material and removing the first epitaxial material from an uncovered portion of the array of fins. Adding a second epitaxial material to the fins in the uncovered portion of the array of fins is included in the method. The method also includes covering a second portion of the array of fins using a second masking material and performing a directional etch using the first masking material and the second masking material. Apparatus and computer program products are also described.
摘要:
Methods for capacitor fabrication include doping a capacitor region of a semiconductor layer in a semiconductor-on-insulator substrate; partially etching the semiconductor layer to produce a first terminal layer comprising doped semiconductor fins on a remaining base of doped semiconductor; forming a dielectric layer over the first terminal layer; and forming a second terminal layer over the dielectric layer in a finFET process.
摘要:
A method for making dual-epi FinFETs is described. The method includes adding a first epitaxial material to an array of fins. The method also includes covering at least a first portion of the array of fins using a first masking material and removing the first epitaxial material from an uncovered portion of the array of fins. Adding a second epitaxial material to the fins in the uncovered portion of the array of fins is included in the method. The method also includes covering a second portion of the array of fins using a second masking material and performing a directional etch using the first masking material and the second masking material. Apparatus and computer program products are also described.
摘要:
A method for making dual-epi FinFETs is described. The method includes adding a first epitaxial material to an array of fins. The method also includes covering at least a first portion of the array of fins using a first masking material and removing the first epitaxial material from an uncovered portion of the array of fins. Adding a second epitaxial material to the fins in the uncovered portion of the array of fins is included in the method. The method also includes covering a second portion of the array of fins using a second masking material and performing a directional etch using the first masking material and the second masking material. Apparatus and computer program products are also described.
摘要:
A method for fabricating a field effect transistor device includes removing a portion of a first semiconductor layer and a first insulator layer to expose a portion of a second semiconductor layer, wherein the second semiconductor layer is disposed on a second insulator layer, the first insulator layer is disposed on the second semiconductor layer, and the first semiconductor layer is disposed on the first insulator layer, removing portions of the first semiconductor layer to form a first fin disposed on the first insulator layer and removing portions of the second semiconductor layer to form a second fin disposed on the second insulator layer, and forming a first gate stack over a portion of the first fin and forming a second gate stack over a portion of the second fin.