摘要:
The present invention provides a method for forming a transistor junction in a semiconductor wafer by implanting a dopant material (116) into the semiconductor wafer, implanting a halo material (110) into the semiconductor wafer (102), selecting a fluorine dose and energy to tailor one or more characteristics of the transistor, implanting fluorine into the semiconductor wafer at the selected dose and energy, activating the dopant material using a thermal process and annealing the semiconductor wafer to remove residual fluorine. The one or more characteristics of the transistor may include halo segregation, halo diffusion, the sharpness of the halo profile, dopant activation, dopant profile sharpness, drive current, bottom wall capacitance or near edge capacitance.
摘要:
The present invention provides a method for manufacturing a transistor device, a method for manufacturing an integrated circuit, and a transistor device. The method for manufacturing the transistor device, among other steps, includes forming a gate structure over a substrate and forming source/drain regions in the substrate proximate the gate structure, the source/drain regions having a boundary that forms an electrical junction with the substrate. The method further includes forming dislocation loops in the substrate, the dislocation loops not extending outside the boundary of the source/drain regions.
摘要:
The present invention provides a method for manufacturing a transistor device, a method for manufacturing an integrated circuit, and a transistor device. The method for manufacturing the transistor device, among other steps, includes forming a gate structure over a substrate and forming source/drain regions in the substrate proximate the gate structure, the source/drain regions having a boundary that forms an electrical junction with the substrate. The method further includes forming dislocation loops in the substrate, the dislocation loops not extending outside the boundary of the source/drain regions.
摘要:
A process for forming diffused region less than 20 nanometers deep with an average doping dose above 1014 cm−2 in an IC substrate, particularly LDD region in an MOS transistor, is disclosed. Dopants are implanted into a source dielectric layer using gas cluster ion beam (GCIB) implantation, molecular ion implantation or atomic ion implantation resulting in negligible damage in the IC substrate. A spike anneal or a laser anneal diffuses the implanted dopants into the IC substrate. The inventive process may also be applied to forming source and drain (S/D) regions. One source dielectric layer may be used for forming both NLDD and PLDD regions.
摘要:
A method for reducing curvature of a wafer having a semiconductor surface. One or more process steps are identified at which wafers exhibit the largest curvature, and/or wafer curvature that may reduce die yield. A crystal damaging process converts at least a portion of the semiconductor surface into at least one amorphous surface region After or contemporaneously with the crystal damaging, the amorphous surface region is recrystallized by recrystallization annealing that anneals the wafer for a time ≦5 seconds at a temperature sufficient for recrystallization of the amorphous surface region. A subsequent photolithography step is facilitated due to the reduction in average wafer curvature provided by the recrystallization.
摘要:
The present invention provides, for use in a semiconductor manufacturing process, a method (100) of preparing an ion-implantation source material. The method includes providing (110) a deliquescent ion implantation source material and mixing (110) the deliquescent ion implantation source material with an organic liquid to form a paste.
摘要:
Ultra high temperature (UHT) anneals above 1200 C for less than 100 milliseconds for PMOS transistors reduce end of range dislocations, but are incompatible with stress memorization technique (SMT) layers used to enhance NMOS on-state current. This invention reverses the conventional order of forming the NMOS first by forming PSD using carbon co-implants and UHT annealing them before implanting the NSD and depositing the SMT layer. End of range dislocation densities in the PSD space charge region below 100 cm−2 are achieved. Tensile stress in the PMOS from the SMT layer is significantly reduced. The PLDD may also be UHT annealed to reduce end of range dislocations close to the PMOS channel.
摘要:
In one aspect there is provided a method of manufacturing a semiconductor device comprising forming gate electrodes over a semiconductor substrate, forming source/drains adjacent the gate electrodes, depositing a stress inducing layer over the gate electrodes. A laser anneal is conducted on at least the gate electrodes subsequent to depositing the stress inducing layer at a temperature of at least about 1100° C. for a period of time of at least about 300 microseconds, and the semiconductor device is subjected to a thermal anneal subsequent to conducting the laser anneal.
摘要:
Exemplary embodiments provide methods for reducing and/or removing slip and plastic deformations in semiconductor materials by use of one or more ultra-fast thermal spike anneals. The ultra-fast thermal spike anneal can be an ultra-high temperature (UHT) anneal having an ultra-short annealing time. During the ultra-fast thermal spike anneal, an increased annealing power density can be used to achieve a desired annealing temperature required by manufacturing processes. In an exemplary embodiment, the annealing temperature can be in the range of about 1150° C. to about 1390° C. and the annealing dwell time can be on the order of less than about 0.8 milliseconds. In various embodiments, the disclosed spike-annealing processes can be used to fabrication structures and regions of MOS transistor devices, for example, drain and source extension regions and/or drain and source regions.
摘要:
An embodiment of the invention is a method of making a semiconductor structure 10 where the spacer oxide layer 90 is formed by a hydrogen free precursor CVD process. Another embodiment of the invention is a semiconductor structure 10 having a spacer oxide layer 90 with a hydrogen content of less than 1%.