Patents by Inventor Amal Ma Hamad
Amal Ma Hamad 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: 8143120Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: GrantFiled: February 14, 2011Date of Patent: March 27, 2012Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Publication number: 20110133289Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: ApplicationFiled: February 14, 2011Publication date: June 9, 2011Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Patent number: 7910425Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: GrantFiled: March 19, 2010Date of Patent: March 22, 2011Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Publication number: 20100173459Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: ApplicationFiled: March 19, 2010Publication date: July 8, 2010Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Patent number: 7713811Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: GrantFiled: October 1, 2008Date of Patent: May 11, 2010Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Patent number: 7498204Abstract: A thermally conductive structure for a semiconductor integrated circuit and a method for making the structure. The structure comprises one or more vertical and/or horizontal thermally conductive elements disposed proximate a device for improving thermal conductivity from the device to a substrate of the integrated circuit. In one embodiment a heat sink is affixed to the integrated circuit for heat flow from the integrated circuit. The method comprises forming openings in material layers overlying the semiconductor substrate, wherein the openings are disposed proximate the device and extend to the substrate. A thermally conductive material is formed in the openings to provide a thermal path from the device to the substrate.Type: GrantFiled: January 3, 2008Date of Patent: March 3, 2009Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Alan Sangone Chen, Edward Paul Martin, Jr., Amal Ma Hamad, William A. Russell
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Publication number: 20090029510Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: ApplicationFiled: October 1, 2008Publication date: January 29, 2009Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Patent number: 7449388Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: GrantFiled: July 18, 2006Date of Patent: November 11, 2008Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key
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Patent number: 7345364Abstract: A thermally conductive structure for a semiconductor integrated circuit and a method for making the structure. The structure comprises one or more vertical and/or horizontal thermally conductive elements disposed proximate a device for improving thermal conductivity from the device to a substrate of the integrated circuit. In one embodiment a heat sink is affixed to the integrated circuit for heat flow from the integrated circuit. The method comprises forming openings in material layers overlying the semiconductor substrate, wherein the openings are disposed proximate the device and extend to the substrate. A thermally conductive material is formed in the openings to provide a thermal path from the device to the substrate.Type: GrantFiled: September 30, 2004Date of Patent: March 18, 2008Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Alan Sangone Chen, Edward Paul Martin, Jr., Amal Ma Hamad, William A. Russell
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Patent number: 7095094Abstract: A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A first group of the transistors are formed during formation of a triple well for use in providing triple well isolation for complementary metal oxide semiconductor field effect transistors also formed on the semiconductor substrate. Additional bipolar junction transistors with different collector doping densities are formed during a second doping step after forming a gate stack for the field effect transistors. Implant doping through bipolar transistor emitter windows forms bipolar transistors having different doping densities than the previously formed bipolar transistors.Type: GrantFiled: September 29, 2004Date of Patent: August 22, 2006Assignee: Agere Systems Inc.Inventors: Daniel Charles Kerr, Michael Scott Carroll, Amal Ma Hamad, Thiet The Lai, Roger W. Key