Patents Assigned to RJ Mears, LLC
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Publication number: 20080197340Abstract: A multiple-wavelength opto-electronic device may include a substrate and a plurality of active optical devices carried by the substrate and operating at different respective wavelengths. Each optical device may include a superlattice comprising a plurality of stacked groups of layers, and each group of layers may include a plurality of stacked semiconductor monolayers defining a base semiconductor portion and at least one non-semiconductor monolayer thereon.Type: ApplicationFiled: February 16, 2007Publication date: August 21, 2008Applicant: RJ Mears, LLCInventors: Robert J. Mears, Robert John Stephenson, Marek Hytha, Ilija Dukovski, Jean Augustin Chan Sow Fook Yiptong, Samed Halilov, Xiangyang Huang
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Publication number: 20080197341Abstract: A method for making a multiple-wavelength opto-electronic device which may include providing a substrates and forming a plurality of active optical devices to be carried by the substrate and operating at different respective wavelengths. Moreover, each optical device may include a superlattice comprising a plurality of stacked groups of layers, and each group of layers may include a plurality of stacked semiconductor monolayers defining a base semiconductor portion and at least one non-semiconductor monolayer thereon.Type: ApplicationFiled: February 16, 2007Publication date: August 21, 2008Applicant: RJ Mears, LLCInventors: Robert J. Mears, Robert John Stephenson, Marek Hytha, IIija Dukovski, Jean Augustin Chan Sow Fook Yiptong, Samed Halilov, Xiangyang Huang
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Patent number: 7288457Abstract: A method for making a semiconductor device may include providing a semiconductor substrate and forming at least one MOSFET by forming spaced apart source and drain regions and a superlattice on the substrate so that the superlattice is between the source and drain regions. The superlattice may include a plurality of stacked groups of layers. The superlattice may have upper portions extending above adjacent upper portions of the source and drain regions, and lower portions contacting the source and drain regions so that a channel is defined in lower portions of the superlattice. Each group of layers of the superlattice may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion and an energy band-modifying layer thereon. The energy-band modifying layer may include at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor. The method may further include forming a gate overlying the superlattice.Type: GrantFiled: September 14, 2004Date of Patent: October 30, 2007Assignee: RJ Mears, LLCInventor: Scott A. Kreps
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Publication number: 20070238274Abstract: A method is for making a spintronic device and may include forming at least one superlattice and at least one electrical contact coupled thereto, with the at least one superlattice including a plurality of groups of layers. Each group of layers may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion having a crystal lattice, at least one non-semiconductor monolayer constrained within the crystal lattice of adjacent base semiconductor portions, and a spintronic dopant. The spintronic dopant may be constrained within the crystal lattice of the base semiconductor portion by the at least one non-semiconductor monolayer. In some embodiments, the repeating structure of a superlattice may not be needed.Type: ApplicationFiled: March 16, 2007Publication date: October 11, 2007Applicants: RJ Mears, LLCInventors: Xiangyang HUANG, Samed HALILOV, Jean Chan Sow Fook YIPTONG, Ilija DUKOVSKI, Marek HYTHA, Robert MEARS
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Patent number: 7279701Abstract: A semiconductor device may include a semiconductor substrate and at least one metal oxide semiconductor field-effect transistor (MOSFET). The MOSFET may include spaced apart source and drain regions on the semiconductor substrate, and a superlattice including a plurality of stacked groups of layers on the semiconductor substrate between the source and drain regions. The superlattice may have upper portions extending above adjacent upper portions of the source and drain regions, and lower portions contacting the source and drain regions so that a channel is defined in lower portions of said superlattice. Furthermore, each group of layers of the superlattice may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion and an energy band-modifying layer thereon. The energy-band modifying layer may include at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor. A gate may overly the superlattice.Type: GrantFiled: September 14, 2004Date of Patent: October 9, 2007Assignee: RJ Mears, LLCInventor: Scott A. Kreps
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Patent number: 7279699Abstract: An integrated circuit may include at least one active optical device and a waveguide coupled thereto. The waveguide may include a superlattice including a plurality of stacked groups of layers. Each group of layers of the superlattice may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion and an energy band-modifying layer thereon. The energy-band modifying layer may include at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions.Type: GrantFiled: September 9, 2004Date of Patent: October 9, 2007Assignee: RJ Mears, LLCInventors: Robert J. Mears, Robert John Stephenson
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Patent number: 7265002Abstract: A method for making a semiconductor device may include providing a substrate, and forming at least one MOSFET adjacent the substrate by forming a superlattice including a plurality of stacked groups of layers and a semiconductor cap layer on an uppermost group of layers. Each group of layers of the superlattice may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions. The method may further include forming source, drain, and gate regions defining a channel through at least a portion of the semiconductor cap layer.Type: GrantFiled: January 25, 2005Date of Patent: September 4, 2007Assignee: RJ Mears, LLCInventors: Robert J. Mears, Jean Augustin Chan Sow Fook Yiptong, Marek Hytha, Scott A. Kreps, Ilija Dukovski
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Publication number: 20070197006Abstract: A method for making a semiconductor device which may include forming a first monocrystalline layer comprising a first material having a first lattice constant, a second monocrystalline layer including a second material having a second lattice constant different than the first lattice constant, and a lattice matching layer between the first and second monocrystalline layers and comprising a superlattice. More particularly, the superlattice may include a plurality of groups of layers, and each group of layers may include a plurality of stacked semiconductor monolayers defining a semiconductor base portion and at least one non-semiconductor monolayer thereon. Furthermore, the at least one non-semiconductor monolayer may be constrained within a crystal lattice of adjacent base semiconductor portions, and at least some semiconductor atoms from opposing base semiconductor portions may be chemically bound together through the at least one non-semiconductor monolayer therebetween.Type: ApplicationFiled: February 21, 2007Publication date: August 23, 2007Applicant: RJ Mears, LLCInventors: Ilija Dukovski, Robert Stephenson, Jean Augustin Chan Yiptong, Samed Halilov, Robert Mears, Xiangyang Huang, Marek Hytha
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Publication number: 20070194298Abstract: A semiconductor device may include a first monocrystalline layer comprising a first material having a first lattice constant. A second monocrystalline layer may include a second material having a second lattice constant different than the first lattice constant. The device may also include a lattice matching layer between the first and second monocrystalline layers and comprising a superlattice. The superlattice may include a plurality of groups of layers, and each group of layers may include a plurality of stacked semiconductor monolayers defining a semiconductor base portion and at least one non-semiconductor monolayer thereon. The at least one non-semiconductor monolayer may be constrained within a crystal lattice of adjacent base semiconductor portions, and at least some semiconductor atoms from opposing base semiconductor portions may be chemically bound together through the at least one non-semiconductor monolayer therebetween.Type: ApplicationFiled: February 21, 2007Publication date: August 23, 2007Applicant: RJ Mears, LLCInventors: Ilija Dukovski, Robert Stephenson, Jean Augustin Yiptong, Samed Halilov, Robert Mears, Xiangyang Huang, Marek Hytha
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Publication number: 20070187667Abstract: An electronic device may include a selectively polable superlattice comprising a plurality of stacked groups of layers. Each group of layers of the selectively polable superlattice may include a plurality of stacked semiconductor monolayers defining a semiconductor base portion and at least one non-semiconductor monolayer thereon. The at least one non-semiconductor monolayer may be constrained within a crystal lattice of adjacent silicon portions, and at least some semiconductor atoms from opposing base semiconductor portions may be chemically bound together through the at least one non-semiconductor monolayer therebetween. The electronic device may also include at least one electrode for selectively poling the selectively polable superlattice.Type: ApplicationFiled: December 21, 2006Publication date: August 16, 2007Applicant: RJ Mears, LLCInventors: Samed Halilov, Xiangyang Huang, Ilija Dukovski, Jean Augustin Chan Yiptong, Robert Mears, Marek Hytha, Robert Stephenson
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Publication number: 20070166928Abstract: A method for making an electronic device may include forming a selectively polable superlattice comprising a plurality of stacked groups of layers. Each group of layers of the selectively polable superlattice may include a plurality of stacked semiconductor monolayers defining a semiconductor base portion and at least one non-semiconductor monolayer thereon. The at least one non-semiconductor monolayer may be constrained within a crystal lattice of adjacent silicon portions, and at least some semiconductor atoms from opposing base semiconductor portions may be chemically bound together through the at least one non-semiconductor monolayer therebetween. The method may further include coupling at least one electrode to the selectively polable superlattice for selective poling thereof.Type: ApplicationFiled: December 21, 2006Publication date: July 19, 2007Applicant: RJ Mears, LLCInventors: Samed Halilov, Xiangyang Huang, Ilija Dukovski, Jean Augustin Yiptong, Robert Mears, Marek Hytha, Robert Stephenson
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Publication number: 20070158640Abstract: An electronic device may include a poled superlattice comprising a plurality of stacked groups of layers and having a net electrical dipole moment. Each group of layers of the poled superlattice may include a plurality of stacked semiconductor monolayers defining a base semiconductor portion and at least one non-semiconductor monolayer thereon. The at least one non-semiconductor monolayer may be constrained within a crystal lattice of adjacent base semiconductor portions, and at least some semiconductor atoms from opposing base semiconductor portions may be chemically bound together through the at least one non-semiconductor monolayer therebetween. The electronic device may further include at least one electrode coupled to the poled superlattice.Type: ApplicationFiled: December 21, 2006Publication date: July 12, 2007Applicant: RJ Mears, LLCInventors: Samed Halilov, Xiangyang Huang, Ilija Dukovski, Jean Augustin Yiptong, Robert Mears, Marek Hytha, Robert Stephenson
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Publication number: 20070161138Abstract: A method for making an electronic device may include forming a poled superlattice comprising a plurality of stacked groups of layers and having a net electrical dipole moment. Each group of layers of the poled superlattice may include a plurality of stacked semiconductor monolayers defining a base semiconductor portion and at least one non-semiconductor monolayer thereon. The at least one non-semiconductor monolayer may be constrained within a crystal lattice of adjacent base semiconductor portions, and at least some semiconductor atoms from opposing base semiconductor portions may be chemically bound together through the at least one non-semiconductor monolayer therebetween. The method may further include coupling at least one electrode to the poled superlattice.Type: ApplicationFiled: December 21, 2006Publication date: July 12, 2007Applicant: RJ Mears, LLCInventors: Samed Halilov, Xiangyang Huang, Ilija Dukovski, Jean Augustin Yiptong, Robert Mears, Marek Hytha, Robert Stephenson
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Patent number: 7229902Abstract: A method for making a semiconductor device may include forming a superlattice comprising a plurality of stacked groups of layers. Each group of layers of the superlattice may include a plurality of stacked base silicon monolayers defining a base silicon portion and an energy band-modifying layer thereon. The energy band-modifying layer may include at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions. The method may further include forming at least one pair of oppositely-doped regions in the superlattice defining at least one semiconductor junction.Type: GrantFiled: April 1, 2005Date of Patent: June 12, 2007Assignee: RJ Mears, LLCInventors: Robert J. Mears, Robert John Stephenson
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Patent number: 7227174Abstract: A semiconductor device may include a superlattice comprising a plurality of stacked groups of layers. Each group of layers of the superlattice may include a plurality of stacked base silicon monolayers defining a base silicon portion and an energy band-modifying layer thereon. The energy band-modifying layer may include at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base silicon portions. The semiconductor device may further include a semiconductor layer adjacent the superlattice and comprising at least one first region therein including a first conductivity type dopant. The superlattice may also include at least one second region therein including a second conductivity type dopant to define, with the at least one first region, at least one semiconductor junction.Type: GrantFiled: April 1, 2005Date of Patent: June 5, 2007Assignee: RJ Mears, LLCInventors: Robert J. Mears, Robert John Stephenson
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Patent number: 7202494Abstract: A semiconductor device may include at least one fin field-effect transistor (FINFET) comprising a fin, source and drain regions adjacent opposite ends of the fin, and a gate overlying the fin. The fin may include at least one superlattice including a plurality of stacked groups of layers. Each group of layers may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion, and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions.Type: GrantFiled: June 28, 2006Date of Patent: April 10, 2007Assignee: RJ Mears, LLCInventors: Richard A. Blanchard, Kalipatnam Vivek Rao, Scott A. Kreps
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Semiconductor device including a front side strained superlattice layer and a back side stress layer
Publication number: 20070063185Abstract: A semiconductor device may include a semiconductor substrate having front and back surfaces, a strained superlattice layer adjacent the front surface of the semiconductor substrate and comprising a plurality of stacked groups of layers, and a stress layer on the back surface of the substrate and comprising a material different than the semiconductor substrate. Each group of layers of the strained superlattice layer may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions.Type: ApplicationFiled: September 25, 2006Publication date: March 22, 2007Applicant: RJ Mears, LLCInventor: Kalipatnam Rao -
Publication number: 20070063186Abstract: A method for making a semiconductor device may include forming a stress layer on a back surface of a semiconductor substrate and forming a strained superlattice layer adjacent a front surface of the semiconductor substrate. More particularly, the stress layer may include a material different than the semiconductor substrate. Also, the strained superlattice may include a plurality of stacked groups of layers. Each group of layers of the strained superlattice layer may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion, and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions.Type: ApplicationFiled: September 25, 2006Publication date: March 22, 2007Applicant: RJ Mears, LLCInventor: Kalipatnam Rao
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Publication number: 20070020860Abstract: A method for making a semiconductor device may include forming a superlattice layer including a plurality of stacked groups of layers, and forming a stress layer above the strained superlattice layer to induce a strain therein. Each group of layers of the superlattice layer may include a plurality of stacked base semiconductor monolayers defining a base semiconductor portion, and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions.Type: ApplicationFiled: July 13, 2006Publication date: January 25, 2007Applicant: RJ Mears, LLCInventors: Robert Mears, Scott Kreps
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Publication number: 20070020833Abstract: A method for making a semiconductor device may include forming at least one metal oxide semiconductor field-effect transistor (MOSFET) on a semiconductor substrate. The MOSFET may include spaced-apart source and drain regions, a channel between the source and drain regions, and a gate overlying the channel defining an interface therewith. The gate may include a gate dielectric overlying the channel and a gate electrode overlying the gate dielectric. The channel may include a plurality of stacked base semiconductor monolayers, and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor monolayers. The at least one non-semiconductor monolayer may be positioned at depth of about 4-100 monolayers relative to the interface between the channel and the gate dielectric.Type: ApplicationFiled: July 13, 2006Publication date: January 25, 2007Applicant: RJ Mears, LLCInventors: Robert Mears, Marek Hytha, Scott Kreps