摘要:
A method includes providing a layer of porous silicon carbide supported by a silicon carbide substrate, providing a layer of epitaxial silicon carbide on the layer of porous silicon carbide, forming a plurality of semiconductor devices in the layer of epitaxial silicon carbide, and separating the substrate from the layer of epitaxial silicon carbide at the layer of porous silicon carbide. Additional methods are described.
摘要:
A process treats a surface of a semiconductor material in order to put the surface into a predetermined electrical state. The semiconductor material is preferably monocrystalline. The process includes (a) preparing the surface of the semiconductor material such that the surface has a controlled organization at an atomic scale such that the surface is capable of combining with a chosen material, and (b) combining the surface thus prepared with a material chosen from among hydrogen, molecules containing hydrogen, metals, organic molecules and inorganic molecules, wherein the preparing and the combining the surface with the material cooperate to obtain the predetermined electrical state of the surface.
摘要:
An electrical contact for a silicon carbide component comprises a material that is in thermodynamic equilibrium with silicon carbide. The electrical contact is typically formed of Ti3SiC2 that is deposited on the silicon carbide component.
摘要翻译:用于碳化硅部件的电接触包括与碳化硅处于热力学平衡的材料。 电接触通常由沉积在碳化硅部件上的Ti 3 SiC 2形成。
摘要:
Semiconductor devices and their manufacturing methods are disclosed herein, and more particularly to semiconductor devices including a transistor having gate all around (GAA) transistor structures and manufacturing methods thereof. Different thickness in an epi-growth scheme is adopted to create different sheet thicknesses within the same device channel regions for use in manufacturing vertically stacked nano structure (e.g., nanosheet, nanowire, or the like) GAA devices. A GAA device may be formed with a vertical stack of nanostructures in a channel region with a topmost nanostructure of the vertical stack being thicker than the other nanostructures of the vertical stack. Furthermore, an LDD portion of the topmost nano structure may be formed as the thickest of the nanostructures in the vertical stack.
摘要:
A method includes: providing a layer of porous silicon carbide supported by a silicon carbide substrate; providing a layer of epitaxial silicon carbide on the layer of porous silicon carbide; forming semiconductor devices in the layer of epitaxial silicon carbide; and separating the silicon carbide substrate from the layer of epitaxial silicon carbide at the layer of porous silicon carbide. The layer of porous silicon carbide includes dopants defining a resistivity of the layer of porous silicon carbide. The resistivity of the layer of porous silicon carbide is different from a resistivity of the silicon carbide substrate. Additional methods are described.
摘要:
A gap-fill polymer for filling fine pattern gaps, which has a low dielectric constant (flow-k) and excellent gap filling properties may consist of a compound formed by condensation polymerization of a first oligomer represented by the formula 1 and a second oligomer represented by the formula 2.
摘要:
A method for manufacturing a silicon carbide semiconductor device includes the following steps. When viewed in a direction perpendicular to a main surface, a silicon carbide substrate has a connection region provided to include an end portion of one side, an apex of a first body region nearest to the end portion, and an apex of a second body region nearest to the end portion, the connection region being electrically connected to both the first body region and the second body region, the connection region having the second conductivity type. When viewed in a direction parallel to the main surface, the first drift region and the second drift region are provided between a gate insulating film and the connection region. The connection region, the first body region, and the second body region are formed by ion implantation.
摘要:
Process for treatment of the surface of a semiconducting material, particularly using hydrogen, and surface obtained using this process. According to the invention, hydrogen (for example) is used to prepare the surface (S) so that it has a controlled organization at the atomic scale, and the surface thus prepared is hydrogenated, the preparation and hydrogenation of the surface cooperating to obtain a predefined electrical state of the surface. The invention is applicable to metallisation or passivation of a semiconducting surface, particularly in microelectronics.
摘要:
A thermodynamically stable metallic contact for binary oxide-, nitride-, carbide or phosphide-semiconductors and a method of its preparation, the contact is formed in a high temperature reaction in vacuum of a metal bi-layer with the binary semiconductor substrate. With a proper choice of the two metallic layers, each metal forms a single phase with only one of binary semiconductor elements. The resulting phases form distinct layers in a thermodynamically stable sequence.
摘要:
Semiconductor devices and their manufacturing methods are disclosed herein, and more particularly to semiconductor devices including a transistor having gate all around (GAA) transistor structures and manufacturing methods thereof. Different thickness in an epi-growth scheme is adopted to create different sheet thicknesses within the same device channel regions for use in manufacturing vertically stacked nanostructure (e.g., nanosheet, nanowire, or the like) GAA devices. A GAA device may be formed with a vertical stack of nanostructures in a channel region with a topmost nanostructure of the vertical stack being thicker than the other nanostructures of the vertical stack. Furthermore, an LDD portion of the topmost nanostructure may be formed as the thickest of the nanostructures in the vertical stack.