摘要:
A thin film field effect transistor and method for forming the same are disclosed. Conductive moat bodies 16 and 18 are formed on a surface 12 of an insulator substrate 10. A semiconductor channel layer 20 is formed covering the moat bodies 16 and 18 and the surface 12. A gate insulator layer 22 is formed covering the channel layer 20 between the moat bodies 16 and 18. A gate conductor 26 is formed outwardly from the gate insulator layer 22. Moat bodies 16 and 18 provide efficient contact points for a source contact 56 and a drain contact 60. Additionally, moat bodies 16 and 18 provide additional material from which silicide bodies 48 and 52 may be optionally formed.
摘要:
A semiconductor device can include a channel region with a first semiconductor material for a majority carrier in the channel region during operation (on state) of the device and a metal contact. A source/drain region can include a semiconductor material alloy including a second semiconductor material and at least one heterojunction located between the metal contact and the channel region, wherein the heterojunction forms a band-edge offset for the majority carrier that is less than or equal to about 0.2 eV.
摘要:
A device may include a nanosheet field effect transistor (FET) that may include a substrate, a well that is doped with impurities at a surface of the substrate, a channel including a plurality of stacked nanosheets, a gate, a conductive material, and an isolation layer. Ones of the plurality of stacked nanosheets may include a semiconductor material that may be doped with impurities of the same conductivity type as the impurities of the well. The conductive material may be adjacent the plurality of nanosheets and may electrically connect ones of the plurality of nanosheets to the well. The isolation layer may electrically insulate the well from the workfunction metal.
摘要:
FinFET semiconductor devices and methods of forming the same are provided. The finFET semiconductor devices may include an insulator layer, a bottom semiconductor layer on the insulator layer, a channel fin on the bottom semiconductor layer, a source region on the bottom semiconductor layer and adjacent a first side of the channel fin, and a drain region on the bottom semiconductor layer and adjacent a second side of the channel fin opposite the first side.
摘要:
A method for manufacturing a transistor includes providing a transistor assembly having a semiconductor layer with a first surface, a dielectric layer disposed on the first surface, a gate electrode disposed on the dielectric layer, an insulation layer adjacent at least part of the gate electrode, and a nitride spacer layer adjacent at least part of the insulation layer. The method also includes depositing, on part of the first surface, a material that will react with the semiconductor layer to form silicide and removing the unreacted material. The method further includes etching the nitride spacer layer, depositing a pre-metal spacer layer adjacent at least part of the nitride spacer layer and at least part of the first surface, etch removing a portion of the pre-metal spacer layer to expose part of the silicided portion of the first surface, and forming a contact with the silicided portion of the first surface.
摘要:
The present invention provides a trench isolation structure, a method of manufacture therefor and a method for manufacturing an integrated circuit including the same. The trench isolation structure (130), in one embodiment, includes a trench located within a substrate (110), the trench having an implanted buffer layer (133) located in the sidewalls thereof. The trench isolation structure (130) further includes a barrier layer (135) located over the implanted buffer layer (133), and fill material (138) located over the barrier layer (135) and substantially filling the trench.
摘要:
A method of fabricating different transistor structures with the same mask. A masking layer (214) has two openings (204, 202) that expose two transistor areas (304,302). The width of the second opening (202) is adjusted such that the angled implant is substantially blocked from the second transistor area (302). The angled implant forms pocket regions in the first transistor area (304). The same masking layer (214) may then be used to implant source and drain extension regions in both the first and second transistor areas (304, 302).
摘要:
High performance digital transistors (140) and analog transistors (144) are formed at the same time. The digital transistors (140) include pocket regions (134) for optimum performance. These pocket regions (134) are partially or completely suppressed from at least the drain side of the analog transistors (144) to provide a flat channel doping profile on the drain side. The flat channel doping profile provides high early voltage and higher gain. The suppression is accomplished by using the HVLDD implants for the analog transistors (144).
摘要:
A lateral MOSFET (100) and a method for making the same. A two layer raised source/drain region (106) is located adjacent a gate structure (112). The first layer (106a) of the raised source drain is initially doped p-type and the second layer (106b) of the raised source/drain region is doped n-type. P-type dopants from first layer (106a) are diffused into the substrate to form a pocket barrier region (105). N-type dopants from second layer (106b) diffuse into first layer (106a) so that it becomes n-type and into the substrate to form source/drain junction regions (104). P-type pocket barrier region (105) thus provides a barrier between the source/drain junction regions (104) and the channel region (108).
摘要:
Transistors may be fabricated by isolating a first region (16) of a semiconductor layer from a second region (18) of the semiconductor layer (12). A first disposable gate structure (26) of the first transistor may be formed over the first region (16) of the semiconductor layer (12). The first disposable gate structure (26) may comprise a replaceable material. A second disposable gate structure (28) of the second complementary transistor may be formed over the second region (18) of the semiconductor layer (12). A replacement layer (70) may be formed over the first disposable gate structure (26). The replacement layer (70) may comprise a replacement material. At least a portion of the replaceable material of the first disposable gate structure (26) may be substitutionally replaced with the replacement material of the replacement layer (70) to form a first gate structure (80).