Patents by Inventor Tze Wing Poon
Tze Wing Poon 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).
-
Patent number: 9530898Abstract: Semiconductor devices suitable for narrow pitch applications and methods of fabrication thereof are described herein. In some embodiments, a semiconductor device may include a floating gate having a first width proximate a base of the floating gate that is greater than a second width proximate a top of the floating gate. In some embodiments, a method of shaping a material layer may include (a) oxidizing a surface of a material layer to form an oxide layer at an initial rate; (b) terminating formation of the oxide layer when the oxidation rate is about 90% or below of the initial rate; (c) removing at least some of the oxide layer by an etching process; and (d) repeating (a) through (c) until the material layer is formed to a desired shape. In some embodiments, the material layer may be a floating gate of a semiconductor device.Type: GrantFiled: October 16, 2014Date of Patent: December 27, 2016Assignee: APPLIED MATERIALS, INC.Inventors: Udayan Ganguly, Yoshitaka Yokota, Jing Tang, Sunderraj Thirupapuliyur, Christopher Sean Olsen, Shiyu Sun, Tze Wing Poon, Wei Liu, Johanes Swenberg, Vicky U. Nguyen, Swaminathar Srinivasan, Jacob Newman
-
Publication number: 20150102396Abstract: Semiconductor devices suitable for narrow pitch applications and methods of fabrication thereof are described herein. In some embodiments, a semiconductor device may include a floating gate having a first width proximate a base of the floating gate that is greater than a second width proximate a top of the floating gate. In some embodiments, a method of shaping a material layer may include (a) oxidizing a surface of a material layer to form an oxide layer at an initial rate; (b) terminating formation of the oxide layer when the oxidation rate is about 90% or below of the initial rate; (c) removing at least some of the oxide layer by an etching process; and (d) repeating (a) through (c) until the material layer is formed to a desired shape. In some embodiments, the material layer may be a floating gate of a semiconductor device.Type: ApplicationFiled: October 16, 2014Publication date: April 16, 2015Inventors: UDAYAN GANGULY, YOSHITAKA YOKOTA, JING TANG, SUNDERRAJ THIRUPAPULIYUR, CHRISTOPHER SEAN OLSEN, SHIYU SUN, TZE WING POON, WEI LIU, JOHANES SWENBERG, VICKY U. NGUYEN, SWAMINATHAR SRINIVASAN, JACOB NEWMAN
-
Patent number: 8871645Abstract: Semiconductor devices suitable for narrow pitch applications and methods of fabrication thereof are described herein. In some embodiments, a semiconductor device may include a floating gate having a first width proximate a base of the floating gate that is greater than a second width proximate a top of the floating gate. In some embodiments, a method of shaping a material layer may include (a) oxidizing a surface of a material layer to form an oxide layer at an initial rate; (b) terminating formation of the oxide layer when the oxidation rate is about 90% or below of the initial rate; (c) removing at least some of the oxide layer by an etching process; and (d) repeating (a) through (c) until the material layer is formed to a desired shape. In some embodiments, the material layer may be a floating gate of a semiconductor device.Type: GrantFiled: September 11, 2009Date of Patent: October 28, 2014Assignee: Applied Materials, Inc.Inventors: Udayan Ganguly, Yoshita Yokota, Jing Tang, Sunderraj Thirupapuliyur, Christopher Sean Olsen, Shiyu Sun, Tze Wing Poon, Wei Liu, Johanes Swenberg, Vicky U. Nguyen, Swaminathan Srinivasan, Jacob Newman
-
Patent number: 8198671Abstract: A flash memory device comprises a substrate comprising silicon with a silicon dioxide layer thereon. A silicon-oxygen-nitrogen layer is on the silicon dioxide layer, and the silicon-oxygen-nitrogen layer comprises a shaped concentration level profile of oxygen through the thickness of the layer. A blocking dielectric layer is on the silicon-oxygen-nitrogen layer, and a gate electrode is on the blocking dielectric layer. Oxygen ions can be implanted into a silicon nitride layer to form the silicon-oxygen-nitrogen layer.Type: GrantFiled: April 22, 2010Date of Patent: June 12, 2012Assignee: Applied Materials, Inc.Inventors: Christopher Sean Olsen, Tze Wing Poon, Udayan Ganguly, Johanes Swenberg
-
Publication number: 20100270609Abstract: A flash memory device comprises a substrate comprising silicon with a silicon dioxide layer thereon. A silicon-oxygen-nitrogen layer is on the silicon dioxide layer, and the silicon-oxygen-nitrogen layer comprises a shaped concentration level profile of oxygen through the thickness of the layer. A blocking dielectric layer is on the silicon-oxygen-nitrogen layer, and a gate electrode is on the blocking dielectric layer. Oxygen ions can be implanted into a silicon nitride layer to form the silicon-oxygen-nitrogen layer.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Applicant: APPLIED MATERIALS, INC.Inventors: Christopher Sean Olsen, Tze Wing Poon, Udayan Ganguly, Johanes Swenberg
-
Publication number: 20100062603Abstract: Semiconductor devices suitable for narrow pitch applications and methods of fabrication thereof are described herein. In some embodiments, a semiconductor device may include a floating gate having a first width proximate a base of the floating gate that is greater than a second width proximate a top of the floating gate. In some embodiments, a method of shaping a material layer may include (a) oxidizing a surface of a material layer to form an oxide layer at an initial rate; (b) terminating formation of the oxide layer when the oxidation rate is about 90% or below of the initial rate; (c) removing at least some of the oxide layer by an etching process; and (d) repeating (a) through (c) until the material layer is formed to a desired shape. In some embodiments, the material layer may be a floating gate of a semiconductor device.Type: ApplicationFiled: September 11, 2009Publication date: March 11, 2010Inventors: Udayan Ganguly, Yoshita Yokota, Jing Tang, Sunderraj Thirupapuliyur, Christopher Sean Olsen, Shiyu Sun, Tze Wing Poon, Wei Liu, Johanes Swenberg, Vicky U. Nguyen, Swaminathan Srinivasan, Jacob Newman
-
Patent number: 7560377Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: March 22, 2005Date of Patent: July 14, 2009Assignee: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 7163896Abstract: Biased plasma etch processes incorporating H2 etch chemistries. In particular, high density plasma chemical vapor etch-enhanced (deposition-etch-deposition) gap fill processes incorporating etch chemistries which incorporate hydrogen as the etchant that can effectively fill high aspect ratio gaps while reducing or eliminating dielectric contamination by etchant chemical species.Type: GrantFiled: December 10, 2003Date of Patent: January 16, 2007Assignee: Novellus Systems, Inc.Inventors: Wenxian Zhu, Jengyi Yu, Siswanto Sutanto, Pingsheng Sun, Jeffrey Chih-Hou Lowe, Waikit Fung, Tze Wing Poon
-
Patent number: 6930061Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10 W to about 200 W or a pulsed RF power level from about 20 W to about 500 W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: August 26, 2003Date of Patent: August 16, 2005Assignee: Applied Materials Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6869896Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: August 26, 2003Date of Patent: March 22, 2005Assignee: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6734115Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: August 27, 2002Date of Patent: May 11, 2004Assignee: Applied Materials Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Publication number: 20040082199Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: ApplicationFiled: August 26, 2003Publication date: April 29, 2004Applicant: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Publication number: 20040038545Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10W to about 200W or a pulsed RF power level from about 20W to about 500W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: ApplicationFiled: August 26, 2003Publication date: February 26, 2004Applicant: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6660656Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10W to about 200W or a pulsed RF power level from about 20W to about 500W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: September 19, 2001Date of Patent: December 9, 2003Assignee: Applied Materials Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6596655Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10W to about 200W or a pulsed RF power level from about 20W to about 500W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: September 19, 2001Date of Patent: July 22, 2003Assignee: Applied Materials Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6562690Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10W to about 200W or a pulsed RF power level from about 20W to about 500W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: June 13, 2000Date of Patent: May 13, 2003Assignee: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Publication number: 20030064610Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: ApplicationFiled: August 27, 2002Publication date: April 3, 2003Applicant: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6541282Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10 W to about 200 W or a pulsed RF power level from about 20 W to about 500 W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: June 13, 2000Date of Patent: April 1, 2003Assignee: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Publication number: 20020045361Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10 W to about 200 W or a pulsed RF power level from about 20 W to about 500 W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: ApplicationFiled: September 19, 2001Publication date: April 18, 2002Applicant: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon
-
Patent number: 6348725Abstract: A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10 W to about 200 W or a pulsed RF power level from about 20 W to about 500 W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.Type: GrantFiled: February 10, 1999Date of Patent: February 19, 2002Assignee: Applied Materials, Inc.Inventors: David Cheung, Wai-Fan Yau, Robert P. Mandal, Shin-Puu Jeng, Kuo-Wei Liu, Yung-Cheng Lu, Michael Barnes, Ralf B. Willecke, Farhad Moghadam, Tetsuya Ishikawa, Tze Wing Poon