摘要:
The disclosure provides a semiconductor device and method of manufacture therefore. The method for manufacturing the semiconductor device, in one embodiment, includes providing a substrate (210) having a PMOS device region (220) and NMOS device region (260). Thereafter, a first gate structure (240) and a second gate structure (280) are formed over the PMOS device region and the NMOS device region, respectively. Additionally, recessed epitaxial SiGe regions (710) may be formed in the substrate on opposing sides of the first gate structure. Moreover, first source/drain regions may be formed on opposing sides of the first gate structure and second source/drain regions on opposing sides of the second gate structure. The first source/drain regions and second source/drain regions may then be annealed to form activated first source/drain regions (1110) and activated second source/drain regions (1120), respectively. Additionally, recessed epitaxial carbon doped silicon regions (1410) may be formed in the substrate on opposing sides of the second gate structure after annealing.
摘要:
A method of fabricating an integrated circuit (IC) including a first plurality of MOS transistors having a first gate dielectric having a first thickness in first regions, and a second plurality of MOS transistors having a second gate dielectric having a second thickness in second regions, wherein the first thickness
摘要:
A semiconductor device comprising source and drain regions and insulating region and a plate structure. The source and drain regions are on or in a semiconductor substrate. The insulating region is on or in the semiconductor substrate and located between the source and drain regions. The insulating region has a thin layer and a thick layer. The thick layer includes a plurality of insulating stripes that are separated from each other and that extend across a length between the source and the drain regions. The plate structure is located between the source and the drain regions, wherein the plate structure is located on the thin layer and portions of the thick layer, the plate structure having one or more conductive bands that are directly over individual ones of the plurality of insulating stripes.
摘要:
A semiconductor device is fabricated with a protective liner and/or layer. Well regions and isolation regions are formed within a semiconductor body. A gate dielectric layer is formed over the semiconductor body. A gate electrode layer, such as polysilicon, is formed on the gate dielectric layer. A protective gate liner is formed on the gate electrode layer. A resist mask is formed that defines gate structures. The gate electrode layer is patterned to form the gate structures. Offset spacers are formed on lateral edges of the gate structures and extension regions are then formed in the well regions. Sidewall spacers are then formed on the lateral edges of the gate structures. An NMOS protective region layer is formed that covers the NMOS region of the device. A recess etch is performed within the PMOS region followed by formation of strain inducing recess structures.
摘要:
A method 300 for forming a transistor's drain extension 70 and recessed strained epi regions 150 with a single mask step 306. In an example embodiment, the method 300 may include forming a patterned photoresist layer 200 over a protection layer 190 in a NMOS region 50 and then etching exposed portions of the protection layer 190 in the PMOS region 60 to form extension sidewalls 210 on the transistors 30 in the PMOS region 60 plus a protective hardmask 220 over the NMOS region 50. The method 300 may further include forming the extension regions 70 for the PMOS region transistors 30, performing a recess etch 240 of active regions 230 of the PMOS region transistors 30, and forming the recessed strained epi regions 150.
摘要:
The present invention facilitates semiconductor device fabrication by providing mechanisms for utilizing different isolation schemes within embedded memory and other logic portions of a device. The isolation mechanism of the embedded memory portion is improved relative to other portions of the device by increasing dopant concentrations or reducing the depth of the dopant profiles within well regions of the embedded memory array. As a result, smaller isolation spacing can be employed thereby permitting a more compact array. The isolation mechanism of the logic portion is relatively less than that of the embedded memory portion, which permits greater operational speed for the logic.
摘要:
The present invention facilitates semiconductor fabrication by providing methods of fabrication that selectively apply tensile strain to channel regions of devices while mitigating masking operations employed. A cap poly layer is formed over NMOS and PMOS regions of a semiconductor device. Then, a resist mask is employed to remove a portion of the cap poly layer from the PMOS region. Subsequently, the same resist mask and/or remaining portion of the cap poly layer is employed to form source/drain regions within the PMOS region by implanting a p-type dopant. Afterward, a cap poly thermal process is performed that causes tensile strain to be induced only in channel regions of devices located within the NMOS region. As a result, channel mobility and/or performance of devices located in the PMOS region is not substantially degraded.
摘要:
According to one embodiment of the invention, a method for forming MOSFETs includes providing a substrate having a source region, a gate region, and a drain region, forming a silicon-germanium layer in each of the source and drain regions, forming, in the substrate, a source in the source region and a drain in the drain region, forming a silicon layer outwardly from the silicon-germanium layer in each of the source and drain regions, and forming a silicide layer in each of the source and drain regions.
摘要:
A pnp bipolar junction transistor is formed with improved emitter efficiency by reducing the depth of the p well implant to increase carrier concentration in the emitter and making the emitter junction deeper to increase minority lifetime in the emitter. The high gain BJT is formed without added mask steps to the process flow. A blanket high energy boron implant is used to suppress the isolation leakage in SRAM in the preferred embodiment.
摘要:
Retrograde wells are formed by implanting through nitride films (40). Nitride films (40) are formed after STI (20) formation. By selectively masking a portion of the wafer with photoresist (47) after portions of a retrograde well are formed (45, 50, 55, and 60) the channeling of the subsequent zero degree implants is reduced.