摘要:
A method of fabricating an NMOS transistor, in which, an epitaxial silicon layer is formed before a salicide process is performed, then a nickel layer needed for the salicide process is formed, and, thereafter, a rapid thermal process is performed to allow the nickel layer to react with the epitaxial silicon layer and the silicon substrate under the epitaxial silicon layer to form a nickel silicide layer.
摘要:
A method of fabricating a self-aligned contact is provided. A first dielectric layer is formed on a substrate having a contact region therein. Next, a lower hole corresponding to the contact region is formed in the first dielectric layer. Thereafter, a second dielectric layer is formed on the first dielectric layer, and then an upper hole self-aligned to and communicated with the lower hole is formed in the second dielectric layer, wherein the upper hole and the lower hole constitute a self-aligned contact hole. Afterwards, the self-aligned contact hole is filled with a conductive layer.
摘要:
A flattening mechanism for dry film laminator includes a lower member connected to a dry film laminator. The lower member has a base portion formed thereon. The base portion has a plurality of air holes defined therein. The lower member has a lifting holder movably disposed thereon for holding a wafer. The wafer has a dry film disposed thereon. An upper member is movably disposed above the lower member. The upper member has a pressing portion disposed on a bottom thereof. The pressing portion has a steel plate disposed thereon and a first electric heating layer mounted on a top of the steel. A release film is movably guided between the upper member and the lower member, such that the wafer is lifted to press against the steel plate via the release film for enhancing a lamination of the dry film to the wafer and flattening the dry film.
摘要:
An opening structure includes a semiconductor substrate, at least one dielectric layer disposed on the semiconductor substrate, wherein the dielectric layer has a plurality of openings exposing the semiconductor substrate, and each of the openings has a sidewall, a dielectric thin film covering at least a portion of the sidewall of each of the openings, and a metal layer filled in the openings.
摘要:
A gate structure includes a gate disposed on a substrate, a first spacer disposed on the substrate and surrounding the gate and a second spacer disposed on the first spacer and surrounding the gate, the second spacer is lower than the first spacer.
摘要:
A method for measuring a resistance and an inductance of a permanent magnet synchronous motor (PMSM) in a static state includes inputting a rated current of the PMSM and 150% of the rated current at a state of locking an axle of the PMSM, recording corresponding voltages V100% and V150%, and dividing the voltage difference with the current difference to obtain the resistance of the PMSM. The method continues dividing an electrical period into six voltage vectors at a state of vector controlling, and performing four voltage cycles under every the voltage vector. The voltage cycle includes step outputting a quarter of the voltage V150%, and outputting the voltage V150% after the current being stable. After one of the six voltage vectors being finished, the method switches the other voltage vector and repeats the voltage cycles, and the method is completed till all of the six voltage vectors being finished. Finally, the method continues to compare rising times of the voltage vectors and convert the rising times to inductances, and to define the maximum of the inductances as an inductance of a q axis and to define the minimum of the inductances as an inductance of a d axis.
摘要:
A semiconductor device having nickel silicide and a method for fabricating nickel silicide. A semiconductor substrate having a plurality of doped regions is provided. Subsequently, a nickel layer is formed on the semiconductor substrate, and a first rapid thermal process (RTP) is performed to react the nickel layer with the doped regions disposed thereunder. Thereafter, the unreacted nickel layer is removed, and a second rapid thermal process is performed to form a semiconductor device having nickel silicide. The second rapid thermal process is a spike anneal process whose process temperature is between 400 and 600° C.
摘要:
A semiconductor device having nickel suicide and a method for fabricating nickel silicide. A semiconductor substrate having a plurality of doped regions is provided. Subsequently, a nickel layer is formed on the semiconductor substrate, and a first rapid thermal process (RTP) is performed to react the nickel layer with the doped regions disposed there under. Thereafter, the unreacted nickel layer is removed, and a second rapid thermal process is performed to form a semiconductor device having nickel silicide. The second rapid thermal process is a spike anneal process whose process temperature is between 400 and 600° C.
摘要:
A method for forming a metal oxide semiconductor (MOS) transistor is provided. First, a gate structure is formed over a substrate. Then, offset spacers are formed on respective sidewalls of the gate structure. A first ion implantation process is performed to form a lightly doped drain (LDD) in the substrate beside the gate structure. Other spacers are formed on respective sidewalls of the offset spacers. Thereafter, a second ion implantation process is performed to form source/drain region in the substrate beside the spacers. Then, a metal silicide layer is formed on the surface of the source and the drain. An oxide layer is formed on the surface of the metal silicide layer. The spacers are removed and an etching stop layer is formed on the substrate. With the oxide layer over the metal silicide layer, the solvent for removing the spacers is prevented from damaging the metal silicide layer.
摘要:
A gate electrode is formed on a substrate with a gate insulating layer therebetween. A liner is then deposited on sidewalls of the gate electrode. Source/drain extensions are implanted into the substrate. A first spacer is then formed on the liner. Deep source/drain are implanted into the substrate. A second spacer is formed at the foot of the first spacer. A tilt-angle pre-amorphization implant (PAI) is conducted to form an amorphized layer next to the second spacer. A metal layer is then sputtered on the amorphized layer. The metal layer reacts with the amorphized layer to form a metal silicide layer thereto.