Abstract:
A semiconductor device is provided. The semiconductor device includes a protective liner, and a buried power rail on a first portion of the protective liner, wherein the protective liner is on opposite sides of the buried power rail. The semiconductor device further includes a source/drain on a second portion of the protective liner, wherein the source/drain is offset from the buried power rail, and a source/drain contact on the source/drain and in electrical communication with the buried power rail.
Abstract:
An apparatus comprises a substrate. The apparatus also comprises a diffusion barrier formed on a surface of a first region of the substrate. The diffusion barrier is formed using a first material having a first band gap energy. The apparatus further comprises a channel region formed on a surface of the diffusion barrier. The channel region is formed using a second material having a second band gap energy that is lower than the first band gap energy. The apparatus further comprises a back gate contact coupled to the first region of the substrate.
Abstract:
A high capacitance embedded metal interconnect capacitor and associated fabrication processes are disclosed for using a directional barrier metal formation sequence in a dual damascene copper process to form multi-layer stacked copper interconnect structure having reduced barrier metal layer formation at the bottom of each via hole so that the multi- layer stacked copper interconnect structure may be readily removed and replaced with high capacitance MIM capacitor layers.
Abstract:
The semiconductor device comprises a substrate (1) of semiconductor material, a contact hole (2) reaching from a surface (10) into the substrate, and a contact metalization (12) arranged in the contact hole, so that the contact metalization forms an internal substrate contact (4) on the semiconductor material at least in a bottom area (40) of the contact hole.
Abstract:
An electronic device includes a silicon substrate (2) having a first side and a second side. A structural layer of gallium nitride (6) is formed over the first side of the silicon substrate and includes an active area of the electronic device. A transition layer (8) is provided between the substrate and the structural layer. The transition layer electrically and/or thermally insulated the substrate and the structural layer from one another. A via hole (20) made of a conductive material extends through the structural layer and the transition layer. The via hole is electrically and/or thermally connected to the active area of the electronic device and to the substrate.
Abstract:
The method for manufacturing the semiconductor device, which includes the steps of forming a charge storage layer (22) on a semiconductor substrate (10), forming an extending first groove (12) in the charge storage layer and the semiconductor substrate using a mask layer (30) formed on the charge storage layer as a mask, forming an insulating film (14) in the first groove, forming a second groove (32) extending across the first groove in the mask layer and the insulating film, forming a gate insulating film (18) formed below the second groove, forming a first conductive layer (34) in the second groove, eliminating the mask layer, forming a second conductive layer (36) on both side surfaces of the first conductive layer to form a word line (16) which includes the first and the second conductive layers, and eliminating the charge storage layer using the word line as a mask.
Abstract:
The present disclosed integrated circuit includes a substrate having a top surface, a buried N type layer in the substrate, N type contact region extending from the surface to the buried N type region, a buried P type region abutting and above the buried N type region in the substrate, a P type contact region extending from the surface to the buried P type region, and an N type device region in the surface and above the buried P type region. The P type impurity of the buried P type region including an impurity of a lower coefficient of diffusion than the coefficient of diffusion of the impurities of the P type contact region.
Abstract:
A method of providing a region of doped semiconductor (40) which is buried below the surface of a semiconductor substrate (10) without the requirement of epitaxially deposited layers is provided. The method includes the steps of forming first and second trench portions (26,28) in a semiconductor substrate and then introducing dopant (100) into the trench portions and diffusing the dopant into the semiconductor substrate such that a region of doped semiconductor (40) is formed extending from the first trench portion to the second trench portion. A diffusion barrier, for example formed of two barrier trenches (16,18), is provided in the substrate adjacent the doping trenches to inhibit lateral diffusion of dopant from the doping trenches so as to maintain an undoped region (30) above the region of doped semiconductor. Advantageously, the electrical properties of the buried layer can be adjusted by varying the depths and size/spacing of the doping trenches and diffusion barrier(s), and the doping and diffusion parameters. The doping trenches can later be filled with polysilicon to provide electrical contact to the buried doped region.