Patent classifications
H01L21/3105
METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE AND A SEMICONDUCTOR DEVICE
A method of manufacturing a semiconductor device includes forming a fin structure including a stacked layer of first semiconductor layers and second semiconductor layers disposed over a bottom fin structure and a hard mask layer over the stacked layer, forming an isolation insulating layer so that the hard mask layer and the stacked layer are exposed from the isolation insulating layer, forming a sacrificial cladding layer over at least sidewalls of the exposed hard mask layer and stacked layer, forming layers of a first dielectric layer and an insertion layer over the sacrificial cladding layer and the fin structure, performing an annealing operation to convert a portion of the layers of the first dielectric layer and the insertion layer from an amorphous form to a crystalline form, and removing the remaining amorphous portion of the layers of the first dielectric layer and the insertion layer to form a recess.
METHOD OF PROCESSING WAFER
A method of processing a wafer having a plurality of devices formed in respective areas on a face side of the wafer, the areas being demarcated by a plurality of intersecting projected dicing lines, includes a low-viscosity resin applying step of coating the face side of the wafer with a first liquid resin of low viscosity to cover an area of the wafer where the plurality of devices are present, a high-viscosity resin applying step of, after the low-viscosity resin applying step, coating the face side of the wafer with a second liquid resin of higher viscosity than the first liquid resin in overlapping relation to the first liquid resin, a resin curing step of curing the first liquid resin and the second liquid resin that have coated the face side of the wafer into a protective film, and a planarizing step of planarizing the protective film.
METHOD OF PROCESSING WAFER
A method of processing a wafer having a plurality of devices formed in respective areas on a face side of the wafer, the areas being demarcated by a plurality of intersecting projected dicing lines, includes a resin applying step of coating the face side of the wafer with a liquid resin to cover an area of the wafer where the plurality of devices are present, a resin curing step of curing the liquid resin into a protective film, a protective tape laying step of laying a protective tape on an upper surface of the protective film, and a planarizing step of planarizing a face side of the protective tape.
METHOD FOR PROCESSING SEMICONDUCTOR STRUCTURE AND METHOD FOR FORMING WORD LINE STRUCTURE
A method for processing a semiconductor structure and a method for forming a word line structure are provided. The method for processing the semiconductor structure includes: providing a semiconductor structure including a groove and a metal layer located in the groove, where an edge position of a top surface of the metal layer is higher than a center position of the top surface of the metal layer; enabling the semiconductor structure to be in a rotating state; and performing at least one metal surface planarization process on the semiconductor structure, so that the top surface of the metal layer after being processed is more planar than the top surface of the metal layer before being processed. Each of the at least one metal surface planarization process includes: etching the top surface of the metal layer by a first reagent; and cleaning the semiconductor structure by a second reagent.
FORMATION METHOD OF SEMICONDUCTOR DEVICE WITH DIELECTRIC ISOLATION STRUCTURE
A method for forming a semiconductor device is provided. The method includes forming a semiconductor protruding structure over a substrate and surrounding the semiconductor protruding structure with an insulating layer. The method also includes forming a dielectric layer over the insulating layer. The method further includes partially removing the dielectric layer and insulating layer using a planarization process. As a result, topmost surfaces of the semiconductor protruding structure, the insulating layer, and the dielectric layer are substantially level with each other. In addition, the method includes forming a protective layer to cover the topmost surfaces of the dielectric layer. The method includes recessing the insulating layer after the protective layer is formed such that the semiconductor protruding structure and a portion of the dielectric layer protrude from a top surface of a remaining portion of the insulating layer.
METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
A method of manufacturing a semiconductor device includes forming a gate oxide layer on a substrate, where the substrate includes a high voltage region and a low voltage region. The gate oxide layer is disposed in the high voltage region. Wet etching is performed on the gate oxide layer to reduce a thickness of the gate oxide layer. Multiple trenches are formed around the high voltage region in the substrate, where forming the trenches includes removing an edge of the gate oxide layer to make the thickness of the gate oxide layer uniform. An insulating material is filled in the trenches to form multiple shallow trench isolation structures, where an upper surface of the shallow trench isolation structures close to the edge of the gate oxide layer is coplanar with an upper surface of the gate oxide layer.
Semiconductor structure
A semiconductor structure is provided. The semiconductor structure includes a base substrate including a plurality of non-device regions; a middle fin structure and an edge fin disposed around the middle fin structure on the base substrate between adjacent non-device regions; a first barrier layer on sidewalls of the edge fin; and an isolation layer on the base substrate. The isolation layer has a top surface lower than the edge fin and the middle fin structure, and covers a portion of the sidewalls of each of the edge fin and the middle fin structure. The isolation layer further has a material density smaller than the first barrier layer.
Ultra-compact inductor made of 3D Dirac semimetal
Ultra-compact inductor devices for use in integrated circuits (e.g., RF ICs) that use 3-dimensional Dirac materials for providing the inductor. Whereas inductors currently require significant real estate on an integrated circuit, because they require use of an electrically conductive winding around an insulative core, or such metal deposited in a spiral geometry, the present devices can be far more compact, occupying significantly less space on an integrated circuit. For example, an ultra-compact inductor that could be included in an integrated circuit may include a 3-dimensional Dirac material formed into a geometric shape capable of inductance (e.g., as simple as a stripe or series of stripes of such material), deposited on a substantially non-conductive (i.e., insulative) substrate, on which the Dirac material in the selected geometric shape is positioned. Low temperature manufacturing methods compatible with CMOS manufacturing are also provided.
Slurry and polishing method
A slurry containing abrasive grains, a liquid medium, and a salt of a compound represented by formula (1) below, in which the abrasive grains include first particles and second particles in contact with the first particles, the first particles contain cerium oxide, and the second particles contain a hydroxide of a tetravalent metal element. ##STR00001##
[In formula (1), R represents a hydroxyl group or a monovalent organic group].
Package structure
Provided is a package structure includes a first die, a first dielectric layer, a second dielectric layer and a carrier. The first dielectric layer covers a bottom surface of the first die. The first dielectric layer includes a first edge portion and a first center portion in contact with the bottom surface of the first die. The second dielectric layer is disposed on the first dielectric layer and laterally surrounding the first die. The second dielectric layer includes a second edge portion and a second center portion. The second edge portion is located on the first edge portion, and the second edge portion is thinner than the second center portion. The carrier is bonded to the first dielectric layer through a bonding film.