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6103582 |
Method to suppress boron penetration in P+ mosfets
With the growing practice of doping gates for MOSFETs with boron, problems have been encountered due to later diffusion of the boron into the active region. To block this, argon ions are implanted...
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6103632 |
In situ Etching of inorganic dielectric anti-reflective coating from a substrate
The present invention is embodied in a method and apparatus for etching dielectric layers and inorganic ARC's without the need for removing the substrate being processed from the processing chamber...
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6103605 |
Process for defining the width of silicon gates using spacers as an etch hard mask
Process for controllably defining the width of silicon gates to critical dimensions. The process includes steps of first providing a semiconductor substrate (e.g. a silicon wafer) with a gate oxide...
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6103559 |
Method of making disposable channel masking for both source/drain and LDD implant and subsequent gate fabrication
A method is provided for fabricating a semiconductor device, the method including forming a first dielectric layer above a structure and forming an island of a sacrificial layer above the first...
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6103608 |
Method of forming a contact window
The present invention discloses a method of forming a contact window on a substrate. The method in the present invention includes a step of forming a gate structure on said substrate having a gate...
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6100147 |
Method for manufacturing a high performance transistor with self-aligned dopant profile
A process for manufacturing a high performance transistor with self-aligned dopant profile. The process involves forming a source/drain mask pattern on a substrate. With a first implant material,...
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6100142 |
Method of fabricating sub-quarter-micron salicide polysilicon
A method of fabricating a semiconductor device using a Salicide process to increase the surface area of a polysilicon gate is described. First, a polysilicon layer is formed over a substrate. A...
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6100140 |
Manufacturing method of semiconductor device
A manufacturing method of a vertical type MOSFET, which can suppress vaporization of impurity from a semiconductor substrate and prevent variation in carrier density of the channel, is disclosed....
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6100120 |
Method of locally forming a high-k dielectric gate insulator
A method of forming a dielectric gate insulator in a transistor is disclosed herein. The method includes depositing a layer of material over a semiconductor structure; depositing a covering layer...
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6093628 |
Ultra-low sheet resistance metal/poly-si gate for deep sub-micron CMOS application
A method for fabricating a deep sub-micron gate electrode, comprising polysilicon and metal, having ultra-low sheet resistance. The process begins by forming shallow trench isolation regions 14 in...
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6093590 |
Method of fabricating transistor having a metal gate and a gate dielectric layer with a high dielectric constant
A method of fabricating a transistor. A first dielectric layer with a high dielectric constant is formed on a substrate. An oxide layer is formed on the first dielectric layer. A silicon nitride...
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6090676 |
Process for making high performance MOSFET with scaled gate electrode thickness
A process for making a high performance MOSFET with a scaled gate electrode thickness. In one embodiment, the process comprises first providing a substrate. A gate dielectric layer is formed on the...
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6090672 |
Ultra short channel damascene MOS transistors
This invention is a damascene processing method for forming ultra short channel MOS transistors, where the channel length is not determined by photolithography. The method uses chemical mechanical...
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6090692 |
Fabrication method for semiconductor memory device
A fabrication method for a semiconductor memory device includes the steps of forming a gate pattern on a semiconductor substrate; forming first and second sidewall spacers at sides of the gate...
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6087238 |
Semiconductor device having reduced-width polysilicon gate and non-oxidizing barrier layer and method of manufacture thereof
A semiconductor device having a reduced polysilicon gate electrode width is provided along with a process for manufacturing such a device. In accordance with the present invention, a semiconductor...
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6087249 |
Transistor fabrication process employing a common chamber for gate oxide and gate conductor formation
An integrated circuit transistor is provided having a gate oxide and a gate conductor arranged upon a semiconductor topography, the gate oxide and gate conductor are formed within a common chamber....
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6083816 |
Semiconductor device and method of manufacturing the same
A gate dielectric film 102, gates 104a formed of polysilicon, an offset oxidation film 106a formed of silicon nitride, and an etching stopper nitride film 108a formed of silicon nitride are...
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6083815 |
Method of gate etching with thin gate oxide
A method for etching polysilicon or polycide gate electrodes over thin gate oxides is described wherein the problem of pitting and trenching of the silicon beneath the gate oxide, caused by...
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6080624 |
Nonvolatile semiconductor memory and method for manufacturing the same
The present invention is directed to a flash EEPROM in which a plurality of resist patterns are arranged like an island such that only an interlayer insulation film formed on a field oxide film is...
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6077776 |
Polysilicon residue free process by thermal treatment
A new method of removing impurities and moisture from the surface of a wafer and thereby preventing polysilicon residue is described. A dielectric layer is provided over the surface of a...
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6077733 |
Method of manufacturing self-aligned T-shaped gate through dual damascene
A new method is provided to manufacture a T-shaped gate. A layer of insulation is deposited over a semiconductor surface (typically the surface of a substrate), a dual damascene structure...
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6072213 |
Transistor having an etchant-scalable channel length and method of making same
An integrated circuit fabrication process is provided for forming a transistor having an ultra short channel length. First and second masks are formed upon a conductive gate layer, wherein the...
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6066533 |
MOS transistor with dual metal gate structure
A method for making a ULSI MOSFET includes depositing a high-k gate insulator on a silicon substrate and then depositing a field oxide layer over the gate insulator. The field oxide layer is masked...
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6063698 |
Method for manufacturing a high dielectric constant gate oxide for use in semiconductor integrated circuits
A method for forming a gate dielectric (14b) begins by providing a substrate (12). A high K dielectric layer (14a) is deposited overlying the substrate (12). The dielectric layer (14a) contains...
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6060376 |
Integrated etch process for polysilicon/metal gate
A gate region of a transistor is prepared for receiving a deposit of metal. A chemical mechanical polishing process is performed to reduce thickness of an insulation layer above the gate region. At...
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6060375 |
Process for forming re-entrant geometry for gate electrode of integrated circuit structure
A crystalline semiconductor gate electrode having a re-entrant geometry and a process for making same are disclosed. The novel gate electrode may be formed from a polysilicon layer on a substrate...
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6060377 |
Method for fabricating a polysilicon structure with reduced length that is beyond photolithography limitations
A polysilicon structure is fabricated with a reduced length that is beyond that achievable from photolithography by using a silicidation anneal to control the reduced length. Generally, the present...
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6057217 |
Process for production of semiconductor device with foreign element introduced into silicon dioxide film
A MOS field effect transistor (MOSFET) comprising a semiconductor substrate 11 having thereon a gate silicon dioxide film 12 and a gate electrode 13 both formed by patterning, wherein in only at...
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6057218 |
Method for simultaneously manufacturing poly gate and polycide gate
The present invention discloses a method for simultaneously manufacturing a poly gate and a polycide gate which requires only one gate oxide layer deposition and one polysilicon layer deposition...
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6051486 |
Method and structure for replaceable gate electrode in insulated gate field effect transistors
A method and structure are provided for an IGFET which has a replaceable gate electrode fabrication and dual polished fabrication technique to simultaneously form source, drain and gate regions....
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6051487 |
Semiconductor device fabrication using a sacrificial plug for defining a region for a gate electrode
A semiconductor device is formed by forming a sacrificial plug over a substrate and forming active regions in the substrate adjacent the sacrificial plug. A film is then formed over portions of the...
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6037233 |
Metal-encapsulated polysilicon gate and interconnect
Provided are methods of forming a metal layer on the horizontal and vertical surfaces of a polysilicon gate electrode/interconnect in a MOS transistor, and devices having metal-encapsulated gates...
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6037017 |
Method for formation of multilayer film
A method for forming a multilayer film by introducing a material gas into a reduced-pressure reaction chamber provided with a pair of parallel planer electrodes and supplying a high-frequency...
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6033975 |
Implant screen and method
A semiconductor device (60) may comprise a semiconductor layer (12) having an outer surface (20). A plurality of gates (18) may be disposed over the outer surface (20) of the semiconductor layer...
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6030874 |
Doped polysilicon to retard boron diffusion into and through thin gate dielectrics
An embodiment of the instant invention is a method of fabricating a semiconductor device which includes a dielectric layer situated between a conductive structure and a semiconductor substrate, the...
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6028005 |
Methods for reducing electric fields during the fabrication of integrated circuit devices
A method for fabricating an integrated circuit device includes the steps of forming first and second conductive regions on a substrate. The second conductive region is divided into first and second...
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6025253 |
Differential poly-edge oxidation for stable SRAM cells
An SRAM cell having improved stability includes pass transistors having gate electrodes which are shaped by oxidation so that the lower edges of the gate electrodes are raised away from the...
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6022815 |
Method of fabricating next-to-minimum-size transistor gate using mask-edge gate definition technique
A method of fabricating minimum size and next-to-minimum size electrically conductive members using a litho-less process is disclosed. A substrate is provided, and a layer of gate dielectric...
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6017808 |
Nitrogen implanted polysilicon gate for MOSFET gate oxide hardening
A method for hardening of gate oxide without forming low dopant concentration regions at the gate oxide-polysilicon interface is described. Polysilicon is deposited onto gate oxide followed by...
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6017809 |
Method of manufacturing semiconductor device
A method of manufacturing a semiconductor device comprises the steps of forming a gate insulating film and a first silicon film on a semiconductor substrate, forming on the first silicon film a...
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6015746 |
Method of fabricating semiconductor device with a gate-side air-gap structure
A method of fabricating a semiconductor device. On a semiconductor substrate comprising a device isolation structure and an active region isolated by the device isolation region, an oxide layer is...
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6015727 |
Damascene formation of borderless contact MOS transistors
This invention is a processing method for forming MOS transistors. The method uses chemical mechanical polishing to self align an MOS transistor gate electrode to the channel region in both the...
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6008518 |
Transistor and method of manufacturing the same
A transistor and a fabrication method thereof, and in particular, a technique for compatibly improving reduction of an ON-state voltage and reduction of a turn-off time. First and second emitter...
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6008100 |
Metal-oxide semiconductor field effect transistor device fabrication process
A method of fabricating a MOS FET is provided. An oxide layer and a polysilicon layer are successively formed on the semiconductor substrate. A pyramidical photoresist layer is used as a mask for...
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6008096 |
Ultra short transistor fabrication method
A semiconductor process in which the transistor channel is defined by opposing sidewalls of a pair of masking structures formed on an upper surface of a semiconductor substrate. The spacing between...
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6004853 |
Method to improve uniformity and the critical dimensions of a DRAM gate structure
A process for fabricating a straight walled, silicon nitride capped, gate structure, for a MOSFET device, has been developed. The process features the creation of a straight walled, photoresist...
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6001716 |
Fabricating method of a metal gate
A method of fabricating a metal gate includes forming a gate insulating layer on a provided substrate, forming a PVD titanium nitride layer on the gate insulating layer, forming a CVD titanium...
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5998285 |
Self-aligned T-shaped process for deep submicron Si MOSFET's fabrication
A process is disclosed for the fabrication of a MOS device with a T-shaped gate electrode, in which a selective CVD technique has been utilized to simplify the T-shaped gate process. After the...
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5981363 |
Method and apparatus for high performance transistor devices
The present invention is directed to a method for forming a semiconductor device having a reduced channel length. The method comprises forming a layer of a dielectric material above a surface of a...
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5981365 |
Stacked poly-oxide-poly gate for improved silicide formation
A method of fabricating an integrated circuit transistor in a substrate is provided. A gate electrode stack is formed on the substrate. The stack has a first insulating layer, a first conductor...
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