Abstract: One embodiment of present invention provides a method for manufacturing a semiconductor structure, which comprises: forming a gate stack on a semiconductor substrate and removing parts of the substrates situated on two sides of the gate stack; forming sidewall spacers on sidewalls of the gate stack and on sidewalls of the part of the substrate under the gate stack; forming doped regions in parts of the substrate on two sides of the gate stack, and forming a first dielectric layer to cover the entire semiconductor structure; selectively removing parts of the gate stack and parts of the first dielectric layer to form a channel region opening and source/drain region openings; forming a high K dielectric layer on sidewalls of the channel region opening; and implementing epitaxy process to form a continuous fin structure that spans across the channel region opening and the source/drain region openings.

Abstract: In one embodiment, a SRAM cell may include a substrate and a first Fin Field Effect Transistor (FinFET) and a second FinFET formed on the substrate. The first FinFET may include a first fin which is formed in a semiconductor layer provided on the substrate and abuts the semiconductor layer, and the second FinFET may include a second fin which is formed in the semiconductor layer and abuts the semiconductor layer. The semiconductor layer may include a plurality of semiconductor sub-layers. The first and second fins can include different number of the semiconductor sub-layers and have different heights from each other.

Abstract: The present invention provides a method for manufacturing a semiconductor structure, which comprises: a) forming gate lines extending in a direction on a substrate; b) forming a photoresist layer that covers the semiconductor structure; patterning the photoresist layer to form openings across the gate lines; c) narrowing the openings by forming a self-assembly copolymer inside the openings; and d) cutting the gate lines via the openings to make the gate lines insulated at the openings. Through forming an additional layer on the inner wall of the openings of the photoresist layer, the method for manufacturing a semiconductor structure provided by the present invention manages to reduce the distance between the two opposite walls of the openings in the direction of gate width, namely, the method manages to reduce the distance between the ends of electrically isolated gates located on the same line where it is unnecessary to manufacture a cut mask whose lines are extremely fine.

Abstract: The present invention provides a method for manufacturing a semiconductor structure, comprising: a) forming metal interconnect liners on a substrate; b) forming a mask layer to cover the metal interconnect liners and forming openings, which expose the metal interconnect liners, on the mask layer; c) etching and disconnecting the metal interconnect liners via the openings, thereby insulating and isolating the metal interconnect liners. The present invention further provides a semiconductor structure, which comprises a substrate and metal interconnect liners, wherein ends of the metal interconnect liners are disconnected by insulating walls formed within the substrate. The structure and the method provided by the present invention are favorable for shortening distance between ends of adjacent metal interconnect liners, saving device area and suppressing short circuits happening to metal interconnect liners.

Abstract: Provided are semiconductor devices and methods for manufacturing the same. An example method may include: forming a first semiconductor layer and a second semiconductor layer sequentially on a substrate; patterning the second semiconductor layer and the first semiconductor layer to form a fin; forming an isolation layer on the substrate, wherein the isolation layer exposes a portion of the first semiconductor layer; implanting ions into a portion of the substrate beneath the fin, to form a punch-through stopper; forming a gate stack crossing over the fin on the isolation layer; selectively etching the second semiconductor layer with the gate stack as a mask, to expose the first semiconductor layer; selectively etching the first semiconductor layer, to form a void beneath the second semiconductor layer; and forming a third semiconductor layer on the substrate, to form source/drain regions.

Abstract: Semiconductor devices and methods for manufacturing the same are disclosed. In one aspect, the method comprises forming a first shielding layer on a substrate, and forming one of source and drain regions with the first shielding layer as a mask. Then, forming a second shielding layer on the substrate, and forming the other of the source and drain regions with the second shielding layer as a mask. Then, removing a portion of the second shielding layer which is next to the other of the source and drain regions. Lastly, forming a first gate dielectric layer, a floating gate layer, and a second gate dielectric layer, and forming a gate conductor as a spacer on a sidewall of a remaining portion of the second shielding layer.

Abstract: Semiconductor devices and methods for manufacturing the same are disclosed. In one embodiment, the method comprises: forming a first shielding layer on a substrate, and forming a first spacer on a sidewall of the first shielding layer; forming one of source and drain regions with the first shielding layer and the first spacer as a mask; forming a second shielding layer on the substrate, and removing the first shielding layer; forming the other of the source and drain regions with the second shielding layer and the first spacer as a mask; removing at least a portion of the first spacer; and forming a gate dielectric layer, and forming a gate conductor in the form of spacer on a sidewall of the second shielding layer or on a sidewall of a remaining portion of the first spacer.

Abstract: The present invention provides a method for manufacturing a semiconductor device, which comprises: providing an SOI substrate, which comprises a base layer, an insulating layer located on the base layer and a active layer located on the insulating layer; forming a gate stack on the SOI substrate; etching the active layer, the insulating layer and a part of the base layer of the SOI substrate with the gate stack as a mask, so as to form trenches on both sides of the gate stack; forming a crystal dielectric layer within the trenches, wherein the upper surface of the crystal dielectric layer is lower than the upper surface of the insulating layer and not lower than the lower surface of the insulating layer; and forming source/drain regions on the crystal dielectric layer. The present invention further provides a semiconductor device.

Abstract: There are provided a semiconductor device structure and a method for manufacturing the same. The method comprises: forming at least one continuous gate line on a semiconductor substrate; forming a gate spacer surrounding the gate line; forming source/drain regions in the semiconductor substrate on both sides of the gate line; forming a conductive spacer surrounding the gate spacer; and performing inter-device electrical isolation at a predetermined region, wherein isolated portions of the gate line form gates of respective unit devices, and isolated portions of the conductive spacer form contacts of respective unit devices. Embodiments of the present disclosure are applicable to manufacture of contacts in integrated circuits.

Abstract: A method for manufacturing a semiconductor structure comprises the following steps: providing an SOI substrate and forming a gate structure on the SOI substrate; implanting ions to induce stress in the semiconductor structure by using the gate structure as mask to form a stress-inducing region, which is located under the BOX layer on the SOI substrate on both sides of the gate structure. A semiconductor structure manufactured according to the above method is also disclosed. The semiconductor structure and the method for manufacturing the same disclosed in the present application form on the ground layer a stress-inducing region, which provides favorable stress to the semiconductor device channel and contributes to the improvement of the semiconductor device performance.

Abstract: The present disclosure discloses a metal-oxide-semiconductor field-effect transistor (MOSFET) and a method for manufacturing the same. The MOSFET includes: a silicon on insulator (SOI) wafer which comprises a semiconductor substrate, a buried insulating layer, and a semiconductor layer, the buried insulating layer being on the semiconductor substrate, and the semiconductor layer being on the buried insulating layer; a gate stack on the semiconductor layer; a source region and a drain region, which are in the semiconductor layer and on opposite sides of the gate stack; and a channel region, which is in the semiconductor layer and sandwiched by the source region and the drain region, wherein the MOSFET further comprises a back gate, the back gate being located in the semiconductor substrate and having a first doped region in a lower portion of the back gate and a second doped region in an upper portion of the back gate.

Abstract: The present disclosure provides a semiconductor device and a method for manufacturing the same. The semiconductor device comprises: an SOI wafer comprising a semiconductor substrate, an insulating buried layer, and a semiconductor layer, wherein the insulating buried layer is disposed on the semiconductor substrate, and the semiconductor layer is disposed on the insulating buried layer; adjacent MOSFETs formed in the SOI wafer, wherein each of the adjacent MOSFETs comprises a back gate formed in the semiconductor substrate and a back gate isolation region formed completely under the back gate; and a shallow trench isolation, wherein the shallow trench isolation is formed between the adjacent MOSFETs to isolate the adjacent MOSFETs from each other, wherein a PN junction is formed between the back gate and the back gate isolation region of each of the adjacent MOSFETs. According to embodiments of the present disclosure, a PN junction is formed between the back gate isolation regions of the adjacent MOSFETs.

Abstract: Provided is a method for manufacturing a p-type MOSFET, including: forming a part of the MOSFET on a semiconductor substrate including source/drain regions, a replacement gate, and a gate spacer; removing the replacement gate stack of the MOSFET to form a gate opening; forming an interface oxide layer on the exposed surface of the semiconductor substrate; forming a high-K gate dielectric layer on the interface oxide layer; forming a first metal gate layer; implanting dopant ions into the first metal gate layer; and performing annealing to cause the dopant ions to diffuse and accumulate at an upper interface between the high K gate dielectric layer and the first metal gate layer and a lower interface between the high-K gate dielectric layer and the interface oxide layer, and also to generate electric dipoles by interfacial reaction at the lower interface between the high-K gate dielectric layer and the interface oxide layer.

Abstract: A SRAM cell and a method for manufacturing the same are disclosed. In one embodiment, the SRAM cell may include: a semiconductor layer; and a first Fin Field Effect Transistor (FinFET) and a second FinFET formed on the semiconductor layer, wherein the first FinFET includes a first fin formed by patterning the semiconductor layer, the first fin having a first top surface and a first bottom surface, wherein the second FinFET includes a second fin formed by patterning the semiconductor layer, the second fin having a second top surface and a second bottom surface, and wherein the first top surface is substantially flush with the second top surface, the first and second bottom surfaces abut against the semiconductor layer, and the height of the second fin is greater than the height of the first fin.

Abstract: The present invention provides a method for manufacturing a semiconductor structure, which comprises: a) forming gate lines extending in a direction on a substrate; b) forming a photoresist layer that covers the semiconductor structure; patterning the photoresist layer to form openings across the gate lines; c) narrowing the openings by forming a self-assembly copolymer inside the openings; and d) cutting the gate lines via the openings to make the gate lines insulated at the openings. Through forming an additional layer on the inner wall of the openings of the photoresist layer, the method for manufacturing a semiconductor structure provided by the present invention manages to reduce the distance between the two opposite walls of the openings in the direction of gate width, namely, the method manages to reduce the distance between the ends of electrically isolated gates located on the same line where it is unnecessary to manufacture a cut mask whose lines are extremely fine.

Abstract: A FinFET and a method of manufacturing the same are disclosed. The method includes forming a semiconductor fin. The method further includes forming a first region, the first region being one of a source region and a drain region. The method further includes forming a sacrificial spacer. The method further includes forming a second region with the sacrificial spacer as a mask, the second region being the other one of the source region and the drain region. The method further includes removing the sacrificial spacer. The method further includes replacing the sacrificial spacer with a gate stack comprising a gate conductor and a gate dielectric that separates the gate conductor from the semiconductor fin.

Abstract: The present application discloses a semiconductor structure and a method for manufacturing the same. A semiconductor structure according to the present invention can adjust the threshold voltage by capacitive coupling between a backgate region either and a source region or a drain region with a common contact, i.e. a source contact or a drain contact, which leads to a simple manufacturing process, a higher integration level, and a lower manufacture cost. Moreover, the asymmetric design of the backgate structure, together with the doping of the backgate region which can be varied as required in an actual device design, can further enhance the effects of adjusting the threshold voltage and improve the performances of the device.

Abstract: One embodiment of present invention provides a method for manufacturing a semiconductor structure, which comprises: forming a gate stack on a semiconductor substrate and removing parts of the substrates situated on two sides of the gate stack; forming sidewall spacers on sidewalls of the gate stack and on sidewalls of the part of the substrate under the gate stack; forming doped regions in parts of the substrate on two sides of the gate stack, and forming a first dielectric layer to cover the entire semiconductor structure; selectively removing parts of the gate stack and parts of the first dielectric layer to form a channel region opening and source/drain region openings; forming a high K dielectric layer on sidewalls of the channel region opening; and implementing epitaxy process to form a continuous fin structure that spans across the channel region opening and the source/drain region openings.

Abstract: The present disclosure discloses a method for manufacturing a P-type MOSFET, comprising: forming a part of the MOSFET on a semiconductor substrate, the part of the MOSFET comprising source/drain regions in the semiconductor substrate, a replacement gate stack between the source/drain regions above the semiconductor substrate, and a gate spacer surrounding the replacement gate stack; removing the replacement gate stack of the MOSFET to form a gate opening exposing a surface of the semiconductor substrate; forming an interface oxide layer on the exposed surface of the semiconductor; forming a high-K gate dielectric layer on the interface oxide layer in the gate opening; forming a first metal gate layer on the high-K gate dielectric layer; implanting dopant ions into the first metal gate layer; and performing annealing to cause the dopant ions to diffuse and accumulate at an upper interface between the high-K gate dielectric layer and the first metal gate layer and a lower interface between the high-K gate diele

Abstract: A semiconductor device and a method of manufacturing the same are provided, wherein an example method may include: forming a first semiconductor layer and a second semiconductor layer sequentially on a substrate; patterning the second semiconductor layer and the first semiconductor layer to form a fin; forming an isolation layer on the substrate, wherein the isolation layer exposes a portion of the first semiconductor layer; forming a sacrificial gate stack crossing over the fin on the isolation layer; selectively etching the second semiconductor layer with the sacrificial gate stack as a mask, to expose the first semiconductor layer; selectively etching the first semiconductor layer, to form a void beneath the second semiconductor layer; filling the void with a dielectric material; forming a third semiconductor layer on the substrate, to form source/drain regions; and forming a gate stack to replace the sacrificial gate stack.