Patents by Inventor David R. DiMilia
David R. DiMilia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7786468Abstract: A method for forming strained Si or SiGe on relaxed SiGe on insulator (SGOI) or a SiGe on Si heterostructure is described incorporating growing epitaxial Si1-yGey layers on a semiconductor substrate, smoothing surfaces by Chemo-Mechanical Polishing, bonding two substrates together via thermal treatments and transferring the SiGe layer from one substrate to the other via highly selective etching using SiGe itself as the etch-stop. The transferred SiGe layer may have its upper surface smoothed by CMP for epitaxial deposition of relaxed Si1-yGey, and strained Si1-yGey depending upon composition, strained Si, strained SiC, strained Ge, strained GeC, and strained Si1-yGeyC or a heavily doped layer to make electrical contacts for the SiGe/Si heterojunction diodes.Type: GrantFiled: July 29, 2008Date of Patent: August 31, 2010Assignee: International Business Machines CorporationInventors: Jack O. Chu, David R. DiMilia, Lijuan Huang
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Publication number: 20090267052Abstract: A method for forming strained Si or SiGe on relaxed SiGe on insulator (SGOI) or a SiGe on Si heterostructure is described incorporating growing epitaxial Si1-yGey layers on a semiconductor substrate, smoothing surfaces by Chemo-Mechanical Polishing, bonding two substrates together via thermal treatments and transferring the SiGe layer from one substrate to the other via highly selective etching using SiGe itself as the etch-stop. The transferred SiGe layer may have its upper surface smoothed by CMP for epitaxial deposition of relaxed Si1-yGey, and strained Si1-yGey depending upon composition, strained Si, strained SiC, strained Ge, strained GeC, and strained Si1-yGeyC or a heavily doped layer to make electrical contacts for the SiGe/Si heterojunction diodes.Type: ApplicationFiled: July 29, 2008Publication date: October 29, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Jack Oon Chu, David R. DiMilia, Lijuan Huang
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Publication number: 20090026495Abstract: A method for forming strained Si or SiGe on relaxed SiGe on insulator (SGOI) or a SiGe on Si heterostructure is described incorporating growing epitaxial Si1-yGey layers on a semiconductor substrate, smoothing surfaces by Chemo-Mechanical Polishing, bonding two substrates together via thermal treatments and transferring the SiGe layer from one substrate to the other via highly selective etching using SiGe itself as the etch-stop. The transferred SiGe layer may have its upper surface smoothed by CMP for epitaxial deposition of relaxed Si1-yGey, and strained Si1-yGey depending upon composition, strained Si, strained SiC, strained Ge, strained GeC, and strained Si1-yGeyC or a heavily doped layer to make electrical contacts for the SiGe/Si heterojunction diodes.Type: ApplicationFiled: July 29, 2008Publication date: January 29, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Jack Oon Chu, David R. DiMilia, Lijuan Huang
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Patent number: 7427773Abstract: A method for forming strained Si or SiGe on relaxed SiGe on insulator (SGOI) or a SiGe on Si heterostructure is described incorporating growing epitaxial Si1?yGey layers on a semiconductor substrate, smoothing surfaces by Chemo-Mechanical Polishing, bonding two substrates together via thermal treatments and transferring the SiGe layer from one substrate to the other via highly selective etching using SiGe itself as the etch-stop. The transferred SiGe layer may have its upper surface smoothed by CMP for epitaxial deposition of relaxed Si1?yGey, and strained Si1?yGey depending upon composition, strained Si, strained SiC, strained Ge, strained GeC, and strained Si1?yGeyC or a heavily doped layer to make electrical contacts for the SiGe/Si heterojunction diodes.Type: GrantFiled: September 23, 2004Date of Patent: September 23, 2008Assignee: International Business Machines CorporationInventors: Jack Oon Chu, David R. DiMilia, Lijuan Huang
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Patent number: 6890835Abstract: A method for forming strained Si or SiGe on relaxed SiGe on insulator (SGOI) or a SiGe on Si heterostructure is described incorporating growing epitaxial Si1-yGey layers on a semiconductor substrate, smoothing surfaces by Chemo-Mechanical Polishing, bonding two substrates together via thermal treatments and transferring the SiGe layer from one substrate to the other via highly seletive etching using SiGe itself as the etch-stop. The transferred SiGe layer may have its upper surface smoothed by CMP for epitaxial deposition of relaxed Si1-yGey, and strained Si1-yGey depending upon composition, strained Si, strained SiC, strained Ge, strained GeC, and strained Si1-yGeyC or a heavily doped layer to make electrical contacts of the SiGe/Si heterojunction diodes.Type: GrantFiled: October 19, 2000Date of Patent: May 10, 2005Assignee: International Business Machines CorporationInventors: Jack Oon Chu, David R. DiMilia, Lijuan Huang
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Patent number: 6866415Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: GrantFiled: January 21, 2003Date of Patent: March 15, 2005Assignee: International Business Machines CorporationInventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Patent number: 6817761Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: GrantFiled: April 21, 2003Date of Patent: November 16, 2004Assignee: International Business Machines CorporationInventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Publication number: 20040028117Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: ApplicationFiled: April 21, 2003Publication date: February 12, 2004Inventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Patent number: 6679625Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: GrantFiled: December 17, 2001Date of Patent: January 20, 2004Assignee: International Business Machines CorporationInventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Patent number: 6652139Abstract: A method of fabricating a scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. The invention also relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: GrantFiled: January 21, 2003Date of Patent: November 25, 2003Assignee: International Business Machines CorporationInventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Publication number: 20030169798Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: ApplicationFiled: January 21, 2003Publication date: September 11, 2003Inventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Patent number: 6613602Abstract: A method and system for forming a thermoelement for a thermoelectric cooler is provided. In one embodiment a substrate having a plurality of pointed tips covered by a metallic layer is formed. Portions of the metallic layer are covered by an insulator and other portions of the metallic layer are exposed. Next, a patterned layer of thermoelectric material is formed by depositions extending from the exposed portions of the metallic layer in the presence of a deposition mask. Finally, a metallic layer is formed to selectively contact the patterned layer of thermoelectric material.Type: GrantFiled: December 13, 2001Date of Patent: September 2, 2003Assignee: International Business Machines CorporationInventors: Emanuel Israel Cooper, Steven Alan Cordes, David R. DiMilia, Bruce Bennett Doris, James Patrick Doyle, Uttam Shyamalindu Ghoshal, Robin Altman Wanner
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Publication number: 20030156623Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: ApplicationFiled: January 21, 2003Publication date: August 21, 2003Inventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Publication number: 20030112844Abstract: A scanning heat flow probe for making quantitative measurements of heat flow through a device under test is provided. In one embodiment the scanning heat flow probe includes an electric current conductor in a cantilever beam connected to a probe tip and coupled to two voltmeter leads. The probe also includes two thermocouple junctions in the cantilever beam electrically isolated from the electric current conductor and the two voltmeter leads. Heat flow is derived quantitatively using only voltage and current measurements. In other forms, the invention relates to the calibration of scanning heat flow probes through a method involving interconnected probes, and relates to the minimization of heat flow measurement uncertainty by probe structure design practices.Type: ApplicationFiled: December 17, 2001Publication date: June 19, 2003Applicant: International Business Machines CorporationInventors: Steven Alan Cordes, David R. DiMilia, James Patrick Doyle, Matthew James Farinelli, Snigdha Ghoshal, Uttam Shyamalindu Ghoshal, Chandler Todd McDowell, Li Shi
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Publication number: 20030113950Abstract: A method and system for forming a thermoelement for a thermoelectric cooler is provided. In one embodiment a substrate having a plurality of pointed tips covered by a metallic layer is formed. Portions of the metallic layer are covered by an insulator and other portions of the metallic layer are exposed. Next, a patterned layer of thermoelectric material is formed by depositions extending from the exposed portions of the metallic layer in the presence of a deposition mask. Finally, a metallic layer is formed to selectively contact the patterned layer of thermoelectric material.Type: ApplicationFiled: December 13, 2001Publication date: June 19, 2003Applicant: International Business Machines Corp.Inventors: Emanuel Israel Cooper, Steven Alan Cordes, David R. Dimilia, Bruce Bennett Doris, James Patrick Doyle, Uttam Shyamalindu Ghoshal, Robin Altman Wanner