摘要:
The present invention relates to high performance three-dimensional (3D) field effect transistors (FETs). Specifically, a 3D semiconductor structure having a bottom surface oriented along one of a first set of equivalent crystal planes and multiple additional surfaces oriented along a second, different set of equivalent crystal planes can be used to form a high performance 3D FET with carrier channels oriented along the second, different set of equivalent crystal planes. More importantly, such a 3D semiconductor structure can be readily formed over the same substrate with an additional 3D semiconductor structure having a bottom surface and multiple additional surfaces all oriented along the first set of equivalent crystal planes. The additional 3D semiconductor structure can be used to form an additional 3D FET, which is complementary to the above-described 3D FET and has carrier channels oriented along the first set of equivalent crystal planes.
摘要翻译:本发明涉及高性能三维(3D)场效应晶体管(FET)。 具体而言,可以使用具有沿着第一组等效晶面中的一个取向的底表面和沿着第二不同组的等效晶面取向的多个附加表面的3D半导体结构,以形成具有载体通道定向的高性能3D FET 沿着第二个不同组的等效晶面。 更重要的是,这种3D半导体结构可以容易地在具有底表面和多个附加表面的附加3D半导体结构的同一衬底上形成,所述另外的三维半导体结构全部沿着第一组等效晶面取向。 附加的3D半导体结构可以用于形成附加的3D FET,其与上述3D FET互补,并且具有沿着第一组等效晶面取向的载流子通道。
摘要:
A semiconductor fuse and methods of making the same. The fuse includes a fuse element and a compressive stress liner that reduces the electro-migration resistance of the fuse element. The method includes forming a substrate, forming a trench feature in the substrate, depositing fuse material in the trench feature, depositing compressive stress liner material over the fuse material, and patterning the compressive stress liner material.
摘要:
A gate dielectric and a gate conductor layer are formed on sidewalls of at least one semiconductor fin. The gate conductor layer is patterned so that a gate electrode is formed on a first sidewall of a portion of the semiconductor fin, while a second sidewall on the opposite side of the first sidewall is not controlled by the gate electrode. A partially gated finFET, that is, a finFET with a gate electrode on the first sidewall and without a gate electrode on the second sidewall is thus formed. Conventional dual gate finFETs may be formed with the inventive partially gated finFETs on the same substrate to provide multiple finFETs having different on-current in the same circuit such as an SRAM circuit.
摘要:
A semiconducting material that has all the advantages of prior art SOI substrates including, for example, low parasitic capacitance and leakage, without having floating body effects is provided. More specifically, the present invention provides a Semiconductor-on-Pores (SOP) material that includes a top semiconductor layer and a bottom semiconductor layer, wherein the semiconductor layers are separated in at least one region by a porous semiconductor material. Semiconductor structures including the SOP material as a substrate as well as a method of fabricating the SOP material are also provided. The method includes forming a p-type region with a first semiconductor layer, converting the p-type region to a porous semiconductor material, sealing the upper surface of the porous semiconductor material by annealing, and forming a second semiconductor layer atop the porous semiconductor material.
摘要:
Structure and method for providing a programmable anti-fuse in a FET structure. A method of forming the programmable anti-fuse includes: providing a p− substrate with an n+ gate stack; implanting an n+ source region and an n+ drain region in the p− substrate; forming a resist mask over the n+ drain region, while leaving the n+ source region exposed; etching the n+ source region to form a recess in the n+ source region; and growing a p+ epitaxial silicon germanium layer in the recess in the n+ source region to form a pn junction that acts as a programmable diode or anti-fuse.
摘要:
A local interconnect is formed with a gate conductor line that has an exposed sidewall on an active area of a semiconductor substrate. The exposes sidewall comprises a silicon containing material that may form a silicide alloy upon silicidation. During a silicidation process, a gate conductor sidewall silicide alloy forms on the exposed sidewall of the gate conductor line and an active area silicide is formed on the active area. The two silicides are joined to provide an electrical connection between the active area and the gate conductor line. Multiple sidewalls may be exposed on the gate conductor line to make multiple connections to different active area silicides.
摘要:
A method of processing a substrate of a device comprises the as following steps. Form a cap layer over the substrate. Form a dummy layer over the cap layer, the cap layer having a top surface. Etch the dummy layer forming patterned dummy elements of variable widths and exposing sidewalls of the dummy elements and portions of the top surface of the cap layer aside from the dummy elements. Deposit a spacer layer over the device covering the patterned dummy elements and exposed surfaces of the cap layer. Etch back the spacer layer forming sidewall spacers aside from the sidewalls of the patterned dummy elements spaced above a minimum spacing and forming super-wide spacers between sidewalls of the patterned dummy elements spaced less than the minimum spacing. Strip the patterned dummy elements. Expose portions of the substrate aside from the sidewall spacers. Pattern exposed portions of the substrate by etching into the substrate.
摘要:
Contact with a floating body of an FET in SOI may be formed in a portion of one of the two diffusions of the FET, wherein the portion of the diffusion (such as N−, for an NFET) which is “sacrificed” for making the contact is a portion of the diffusion which is not immediately adjacent (or under) the gate. This works well with linked body FETs, wherein the diffusion does not extend all the way to BOX, hence the linked body (such as P−) extends under the diffusion where the contact is being made. An example showing making contact for ground to two NFETs (PG and PD) of a 6T SRAM cell is shown.
摘要:
A nano-fuse structural arrangement, includes, for example, a semiconductor substrate having an electrically conductive region formed thereon; an electrically conductive elongated nano-structure having a maximum diameter of less than approximately 50 nm and a maximum length of approximately 250 nm and being formed on the electrically conductive region; a barrier having barrier parts completely spaced from and completely surrounding elongated outer surfaces of the nano-structure, the spaces between the barrier and surfaces consisting essentially of a vacuum and being approximately equally spaced, so that the electrically conductive elongated nano-structure is blowable responsive to an electrical current flowable there through in a range of approximately 4 μA to approximately 120 μA.
摘要:
Disclosed are embodiments of an improved high aspect ratio electroplated metal structure (e.g., a copper or copper alloy interconnect, such as a back end of the line (BEOL) or middle of the line (MOL) contact) in which the electroplated metal fill material is free from seams and/or voids. Also, disclosed are embodiments of a method of forming such an electroplated metal structure by lining a high aspect ratio opening (e.g., a high aspect ratio via or trench) with a metal-plating seed layer and, then, forming a protective layer over the portion of the metal-plating seed layer adjacent to the opening sidewalls so that subsequent electroplating occurs only from the bottom surface of the opening up.