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Class 438/188 - Complementary junction gate field effect transistors


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Process for making plural junction gate field effect transistors
No. of patents: 61
Last issue date: 02/08/2011


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NumberTitleIssue Date
7883948Method and structure for reducing induced mechanical stresses
Methods and structures for relieving stresses in stressed semiconductor liners. A stress liner that enhances performance of either an NFET or a PFET is deposited over a semiconductor to cover the NFET and PFET. A disposable layer is deposited to entirely cover the s...
02/08/2011
7790535Depletion-free MOS using atomic-layer doping
A semiconductor device and a method of manufacturing are provided. A dielectric layer is formed over a substrate, and a first silicon-containing layer, undoped, is formed over the dielectric layer. Atomic-layer doping is used to dope the undoped silicon-containing l...
09/07/2010
7781276Methods of forming CMOS integrated circuits that utilize insulating layers with high stress characteristics to improve NMOS and PMOS transistor carrier mobilities
A CMOS integrated circuit has NMOS and PMOS transistors therein and an insulating layer extending on the NMOS transistors. The insulating layer is provided to impart a relatively large tensile stress to the NMOS transistors. In particular, the insulating layer is fo...
08/24/2010
7772056Transistors for replacing metal-oxide semiconductor field-effect transistors in nanoelectronics
Junction field effect transistors (JFETs) are shown to be a viable replacement for metal oxide semiconductor field effect transistors (MOSFETs) for gate lengths of less than about 40 nm, providing an alternative to the gate leakage problems presented by scaled down ...
08/10/2010
7670890Silicide block isolated junction field effect transistor source, drain and gate
An junction field effect transistor (JFET) is fashioned with a patterned layer of silicide block (SBLK) material utilized in forming gate, source and drain regions. Utilizing the silicide block in this manner helps to reduce low-frequency (flicker) noise associated ...
03/02/2010
7572689Method and structure for reducing induced mechanical stresses
Methods and structures for relieving stresses in stressed semiconductor liners. A stress liner that enhances performance of either an NFET or a PFET is deposited over a semiconductor to cover the NFET and PFET. A disposable layer is deposited to entirely cover the s...
08/11/2009
7365402LDMOS transistor
An LDMOS semiconductor transistor structure comprises a substrate having an epitaxial layer of a first conductivity type, a source region extending from a surface of the epitaxial layer of a second conductivity type, a lightly doped drain region within the epitaxial...
04/29/2008
7329552Field effect transistor fabrication methods, field emission device fabrication methods, and field emission device operational methods
The present invention includes field effect transistors, field emission apparatuses, thin film transistors, and methods of forming field effect transistors. According to one embodiment, a field effect transistor includes a semiconductive layer configured to form a c...
02/12/2008
7253492Semiconductor structure with via structure
A semiconductor device may comprise a semiconductor substrate having a top and a bottom surface, first and second insulating layer deposited on the top surface of the substrate, a runner arranged on top of the second insulator layer, a backside metal layer deposited...
08/07/2007
7242063Symmetric non-intrusive and covert technique to render a transistor permanently non-operable
A technique for and structures for camouflaging an integrated circuit structure. The technique including forming active areas of a first conductivity type and LDD regions of a second conductivity type resulting in a transistor that is always non-operational when sta...
07/10/2007
7238577Method of manufacturing self-aligned n and p type stripes for a superjunction device
A method is provided for obtaining extremely fine pitch N-type and P-type stripes that form the voltage blocking region of a superjunction power device. The stripes are self-aligned and do not suffer from alignment tolerances. The self-aligned, fine pitch of the alt...
07/03/2007
7221034Semiconductor structure including vias
A semiconductor device may comprise a semiconductor substrate having a top and a bottom surface, first and second insulating layer deposited on the top surface of the substrate, a runner arranged on top of the second insulator layer, a backside metal layer deposited...
05/22/2007
7217977Covert transformation of transistor properties as a circuit protection method
A technique for and structures for camouflaging an integrated circuit structure. The technique includes the use of a light density dopant (LDD) region of opposite type from the active regions resulting in a transistor that is always off when standard voltages are ap...
05/15/2007
7202120Semiconductor integrated circuit device and fabrication process thereof
A semiconductor integrated circuit includes an n-channel MOS transistor and a p-channel MOS transistor formed respectively in first and second device regions of a substrate, the n-channel MOS transistor including a first gate electrode carrying sidewall insulation f...
04/10/2007
7166515Implanted hidden interconnections in a semiconductor device for preventing reverse engineering
A camouflaged interconnection for interconnecting two spaced-apart regions of a common conductivity type in an integrated circuit or device and a method of forming same. The camouflaged interconnection comprises a first region forming a conducting channel between th...
01/23/2007
7161544Mobile terminals including a built-in radio frequency test interface
A radio frequency test interface for an electronic device includes a circuit board that includes a radio frequency contact. An antenna includes a resilient member that urges the antenna to engage the radio frequency contact. A test connector includes a conductive co...
01/09/2007
7118952Method of making transistor with strained source/drain
A method of fabricating a transistor comprises the steps of: forming a gate electrode above a substrate made of a first semiconductor material having a first lattice spacing, forming recesses in the semiconductor substrate at respective locations where a source regi...
10/10/2006
7119399LDMOS transistor
A semiconductor device has a semiconductor substrate, an insulating layer on top of the substrate, a lateral field effect transistor with a drain region and a source region arranged in the substrate and a gate arranged above the substrate within the insulating layer...
10/10/2006
7101744Method for forming self-aligned, dual silicon nitride liner for CMOS devices
A method for forming a self-aligned, dual silicon nitride liner for CMOS devices includes forming a first type nitride layer over a first polarity type device and a second polarity type device, and forming a topographic layer over the first type nitride layer. Porti...
09/05/2006
7087473Method of forming conventional complementary MOS transistors and complementary heterojunction MOS transistors on common substrate
A semiconductor integrated circuit fabrication method according to this invention includes: a step of forming a pair of first device forming regions and a pair of second device forming regions in a surface layer portion of a semiconductor substrate by surrounding ea...
08/08/2006
7078296Self-aligned trench MOSFETs and methods for making the same
Self-aligned trench MOSFETs and methods for manufacturing the same are disclosed. By having a self-aligned structure, the number of MOSFETS per unit area—the cell density—is increased, making the MOSFETs cheaper to produce. The self-aligned structure for the MOS...
07/18/2006
7049669LDMOS transistor
A semiconductor device comprises an active region of a first conductivity type including a transistor structure, and a ring shaped region of the first conductivity type extending from a surface of the active region into the active region and substantially surroundin...
05/23/2006
7033877Vertical replacement-gate junction field-effect transistor
An architecture for creating a vertical JFET. Generally, an integrated circuit structure includes a semiconductor area with a major surface formed along a plane and a first source/drain doped region formed in the surface. A second doped region forming a channel of d...
04/25/2006
7021950System and method for preventing electric arcs in connectors feeding power loads and connector used
A system and method for preventing electric arcs in connectors feeding power loads and connector used, Comprising several connectors (11) interspersed in an electric power distribution network, integrating first and second releasable socket coupling supports ...
04/04/2006
6955965Process for fabrication of nitride layer with reduced hydrogen content in ONO structure in semiconductor device
Process for fabricating a charge trapping dielectric flash memory device including steps of providing a semiconductor substrate; forming on the semiconductor substrate a bottom oxide layer; depositing on the bottom oxide layer a nitride layer, the deposited nitride ...
10/18/2005
6949481Process for fabrication of spacer layer with reduced hydrogen content in semiconductor device
Process for fabricating a semiconductor device including steps of providing a semiconductor substrate having formed thereon a semiconductor device; depositing over the semiconductor device a spacer layer, the spacer layer having a first hydrogen content; and applyin...
09/27/2005
6861303JFET structure for integrated circuit and fabrication method
Junction field effect transistors (JFETs) can be fabricated with an epitaxial layer that forms a sufficiently thick channel region to enable the JFET for use in high voltage applications (e.g., having a breakdown voltage greater than about 20V). Additionally or alte...
03/01/2005
6812080Method of producing semiconductor device
As shown in FIG. 1(a), a gate oxide film 12 is formed on an Si substrate 11. A polysilicon layer 13 is formed thereon. A natural oxide film 14 having an arbitrary thickness is formed on the polysilicon layer 13 after ...
11/02/2004
6812077Method for patterning narrow gate lines
Patterning of a gate line is terminated prior to etching completely through the conductive layer from which it is patterned. Surfaces of the conductive layer are then reacted in a reactive atmosphere, and the reacted surfaces are removed, creating a narrow gate line...
11/02/2004
6803265Liner for semiconductor memories and manufacturing method therefor
A manufacturing method for an integrated circuit memory includes providing a semiconductor substrate and depositing a charge-trapping dielectric layer. First and second bitlines are implanted and a wordline layer is deposited. A hard mask layer is deposited over the...
10/12/2004
6794232Method of making MOSFET gate electrodes with tuned work function
Insulated gate field effect transistors having gate electrodes with at least two layers of materials provide gate electrode work function values that are similar to those of doped polysilicon, eliminate the poly depletion effect and also substantially prevent impuri...
09/21/2004
6787437Method of making a high-voltage transistor with buried conduction regions
A high voltage insulated gate field-effect transistor includes an insulated gate field-effect device structure having a source and a drain, the drain being formed with an extended well region having one or more buried layers of opposite conduction type sandwiched th...
09/07/2004
6759289Method of fabricating a high-voltage transistor
A method for making a high voltage insulated gate field-effect transistor with multiple JFET conduction channels comprises successively implanting a dopant of a first conductivity type in a first substrate of a second conductivity type so as to form a first pluralit...
07/06/2004
6734496Semiconductor device
A semiconductor device has a drift region in which a drift current flows if it is in the ON mode and which is depleted if it is in the OFF mode. The drift region is formed as a structure having a plurality of first conductive type divided drift regions and a plurali...
05/11/2004
6724040Semiconductor device
A semiconductor device has a drift region in which a drift current flows if it is in the ON mode and which is depleted if it is in the OFF mode. The drift region is formed as a structure having a plurality of first conductive type divided drift regions and a plurali...
04/20/2004
6613622Method of forming a semiconductor device and structure therefor
A semiconductor device (10, 40) is formed to have a well (19) in a substrate (11). The well and the substrate have the same doping type, for example both P-type or both N-type. Low resistance contact regions (26, 27) of a second conductivity type are form...
09/02/2003
6509220Method of fabricating a high-voltage transistor
A method for making a high voltage insulated gate field-effect transistor with one or more JFET conduction channels comprises successively implanting a dopant of a first conductivity type in a first epitaxial layer of a second conductivity type so as to f...
01/21/2003
6489190Method of fabricating a high-voltage transistor
A method for making a high voltage insulated gate field-effect transistor with multiple JFET conduction channels comprises successively implanting a dopant of a first conductivity type in a first substrate of a second conductivity type so as to form a fir...
12/03/2002
6486011JFET structure and manufacture method for low on-resistance and low voltage application
This invention discloses the present invention discloses a junction field effect transistor (JFET) device supported on a substrate. The JFET device includes a gate surrounded by a depletion region. As the distance between the gates is large enough, there ...
11/26/2002
6468847Method of fabricating a high-voltage transistor
A method for making a high voltage insulated gate field-effect transistor with multiple JFET conduction channels comprises successively implanting a dopant of a first conductivity type in a first substrate of a second conductivity type so as to form a fir...
10/22/2002
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