Patent classifications
H01L21/76892
Semiconductor chip including back-side conductive layer
A substrate wafer arrangement includes a substrate layer having a first main side and a second main side opposite the first main side, the first main side being a front-side and the second main side being a back-side, the substrate layer further having a plurality of semiconductor chips. A polymer structure arranged between the plurality of semiconductor chips extends at least from the front-side of the substrate layer to the back-side of the substrate layer and protrudes from a back-side surface of the substrate layer. The polymer structure separates a plurality of insular islands of conductive material, each insular island corresponding to a respective semiconductor chip of the plurality of semiconductor chips. Semiconductor devices produced from the substrate wafer arrangement are also described.
Bi metal subtractive etch for trench and via formation
Embodiments of the present invention disclose a method forming a via and a trench. By utilizing a first etching process, a first metal layer of a multi-layered device to form a via, wherein the multi-layered device comprises the first metal layer and a second metal layer, wherein the first metal layer is formed directly on top of the second metal layer, wherein the second metal layer acts as an etch stop for the first etching process, wherein the first etching process does not affect the second metal layer. By utilizing a second etching process, the second metal layer of the multi-layered device to form a trench, wherein first metal layer is not affected by the second etching process, wherein the first etching process and the second etching process are two different etching process.
METHOD AND STRUCTURE FOR CUTTING DENSE LINE PATTERNS USING SELF-ALIGNED DOUBLE PATTERNING
A method for forming a semiconductor structure including forming a plurality of mandrel lines on a first dielectric layer and forming one or more groups of discontinuous mandrel line pairs with a first mask. The method further includes disposing a second dielectric layer, and forming dielectric spacers on sidewalls of the mandrel lines and the discontinuous mandrel line pairs. The method further includes removing the mandrel lines and the discontinuous mandrel line pairs to form spacer masks, forming one or more groups of blocked regions using a second mask, and forming openings extended through the first dielectric layer with a conjunction of the spacer masks and the second mask. The method also includes removing the spacer masks and the second mask, disposing an objective material in the openings, and forming objective lines with top surfaces coplanar with the top surfaces of the first dielectric layer.
ETCH METHOD FOR OPENING A SOURCE LINE IN FLASH MEMORY
Various embodiments of the present disclosure are directed towards a method for opening a source line in a memory device. An erase gate line (EGL) and the source line are formed elongated in parallel. The source line underlies the EGL and is separated from the EGL by a dielectric layer. A first etch is performed to form a first opening through the EGL and stops on the dielectric layer. A second etch is performed to thin the dielectric layer at the first opening, wherein the first and second etches are performed with a common mask in place. A silicide process is performed to form a silicide layer on the source line at the first opening, wherein the silicide process comprises a third etch with a second mask in place and extends the first opening through the dielectric layer. A via is formed extending through the EGL to the silicide layer.
Subtractive RIE interconnect
A method is presented for constructing interconnects by employing a subtractive etch process. The method includes forming a plurality of first conductive lines within an interlayer dielectric, depositing dielectric layers over the plurality of first conductive lines, depositing a photoresist layer over the dielectric layers, patterning the photoresist layer to create vias to top surfaces of one or more of the plurality of first conductive lines, and depositing a conductive material such that the conductive material fills the vias and provides for a sheet of metal for second conductive lines formed above the first conductive lines.
THREE-DIMENSIONAL VERTICAL NOR FLASH THIN-FILM TRANSISTOR STRINGS
A memory structure, includes (a) active columns of polysilicon formed above a semiconductor substrate, each active column extending vertically from the substrate and including a first heavily doped region, a second heavily doped region, and one or more lightly doped regions each adjacent both the first and second heavily doped region, wherein the active columns are arranged in a two-dimensional array extending in second and third directions parallel to the planar surface of the semiconductor substrate; (b) charge-trapping material provided over one or more surfaces of each active column; and (c) conductors each extending lengthwise along the third direction. The active columns, the charge-trapping material and the conductors together form a plurality of thin film transistors, with each thin film transistor formed by one of the conductors, a portion of the lightly doped region of an active column, the charge-trapping material between the portion of the lightly doped region and the conductor, and the first and second heavily doped regions. The thin film transistors associated with each active column are organized into one or more vertical NOR strings.
MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE
A manufacturing method of a semiconductor device is provided. A substrate is provided. The substrate has an active area. A plurality of word lines are formed on the substrate. Each of the word lines is extended along a first direction, and the word lines are arranged on both sides of the active area along a second direction. A first dielectric layer is formed on the substrate. The first dielectric layer covers the active area and the word lines. A contact is formed on the active area. The contact penetrates through the first dielectric layer and is electrically connected to the active area. A heating process is performed on the first dielectric layer to shrink the first dielectric layer inward, and the contact is correspondingly expanded outward.
METHOD FOR DEPOSITING ELEMENTS ON A SUBSTRATE OF INTEREST AND DEVICE
The invention relates to a method for depositing new elements on a substrate of interest by means of a beam of focused ions and a platform for cooling the substrate of interest to cryogenic temperatures that can also rough out defective elements that are located on same. In addition, the invention relates to a device that comprises all the means necessary for carrying out the method, in particular the means necessary for condensing precursor gases on the surface of the substrate of interest at cryogenic temperatures. The method and the device of the invention can be used to remove and repair, for example, metal contacts of an electronic device or of an integrated circuit, or to repair, for example, portions of an optical lithography mask. Therefore, the present invention is applicable in the electronics industry and in the field of nanotechnology.
Method for forming three-dimensional integrated wiring structure and semiconductor structure thereof
Embodiments of methods and structures for forming a 3D integrated wiring structure are disclosed. The method can include forming an insulating layer on a front side of a first substrate; forming a semiconductor layer on a front side of the insulating layer; patterning the semiconductor layer to expose at least a portion of a surface of the insulating layer; forming a plurality of semiconductor structures over the front side of the first substrate, wherein the semiconductor structures include a plurality of conductive contacts and a first conductive layer; joining a second substrate with the semiconductor structures; performing a thinning process on a backside of the first substrate to expose the insulating layer and one end of the plurality of conductive contacts; and forming a conductive wiring layer on the exposed insulating layer.
SEMICONDUCTOR DEVICE INCLUDING GRAPHENE INTERCONNECT AND METHOD OF MAKING THE SEMICONDUCTOR DEVICE
A semiconductor device includes a semiconductor substrate, a plurality of intercalated graphene structures and a via. The intercalated graphene structures are disposed over the semiconductor substrate. Each of the intercalated graphene structures includes a plurality of graphene layers each extending substantially parallel to the semiconductor substrate. The via extends into at least a portion of one of the intercalated graphene structures toward the semiconductor substrate, and is in contact with edges of corresponding ones of the graphene layers of the one of the intercalated graphene structures.