Patents by Inventor Fa Lu

Fa Lu 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).

  • Publication number: 20150001681
    Abstract: A method includes holding bonded wafers by a wafer holding module. A gap between the bonded wafers along an edge is filled with a protection material.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventors: Chen-Fa Lu, Yeur-Luen Tu, Shu-Ju Tsai, Cheng-Ta Wu, Chia-Shiung Tsai, Xiaomeng Chen
  • Publication number: 20140131861
    Abstract: A semiconductor device having a polymer layer and a method of fabricating the same is provided. A two-step plasma treatment for a surface of the polymer layer includes a first plasma process to roughen the surface of the polymer layer and loosen contaminants, and a second plasma process to make the polymer layer smoother or make the polymer layer less rough. An etch process may be used between the first plasma process and the second plasma process to remove the contaminants loosened by the first plasma process. In an embodiment, the polymer layer exhibits a surface roughness between about 1% and about 8% as measured by Atomic Force Microscopy (AFM) with the index of surface area difference percentage (SADP) and/or has surface contaminants of less than about 1% of Ti, less than about 1% of F, less than about 1.5% Sn, and less than about 0.4% of Pb.
    Type: Application
    Filed: December 4, 2013
    Publication date: May 15, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Fa Lu, Chung-Shi Liu, Chen-Hua Yu, Wei-Yu Chen, Cheng-Ting Chen
  • Patent number: 8716858
    Abstract: A semiconductor device includes a barrier layer between a solder bump and a post-passivation interconnect (PPI) layer. The barrier layer is formed of at least one of an electroless nickel (Ni) layer, an electroless palladium (Pd) layer or an immersion gold (Au) layer.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: May 6, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Chung-Shi Liu, Mirng-Ji Lii, Chen-Hua Yu
  • Patent number: 8710458
    Abstract: A method of forming an integrated circuit includes providing a wafer, and a tape adhered to the wafer, wherein the tape has a main surface perpendicular to a first direction. The tape is exposed to a light to cause the tape to lose adhesion. In the step of exposing the tape, the wafer and the tape are rotated, and/or the light is tilt projected onto the tape, wherein a main projecting direction of the light and the first direction form a tilt angle greater than zero degrees and less than 90 degrees.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: April 29, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Hsiang Hu, Chen-Fa Lu, Chung-Shi Liu
  • Publication number: 20140039661
    Abstract: A system for reducing processing defects during processing of a semiconductor wafer prior to back-grinding the wafer includes a table having one or more holes formed therein, wherein the table comprises at least one of a chuck table or a support table, wherein the holes are perpendicular to the surface upon which a pre-back-grinding (PBG) process occurs. The system further includes one or more sensors disposed in said holes for monitoring a parameter during the PBG process. The system further includes a computer-implemented process control tool coupled with the one or more sensors and configured to determine whether the PBG process will continue.
    Type: Application
    Filed: October 3, 2013
    Publication date: February 6, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Fa LU, Cheng-Ting CHEN, James HU, Chung-Shi LIU
  • Patent number: 8636559
    Abstract: A method of reducing manufacturing defects of semiconductor wafers during a back-grinding process. The method includes receiving a semiconductor wafer on a chuck table, wherein said chuck table has a surface upon which a front side of the wafer is placed, and wherein said chuck table has one or more holes in surface and one or more sensors placed in said one or more holes. The method further includes grinding at least a portion of a back side of the semiconductor wafer. The method further includes monitoring a parameter, while grinding, measured by the one or more sensors and adjusting the grinding based at least on the monitored parameter.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 28, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Chiang-Hao Lee, Wei-Yu Chen, Chung-Shi Liu
  • Patent number: 8629053
    Abstract: A semiconductor device having a polymer layer and a method of fabricating the same is provided. A two-step plasma treatment for a surface of the polymer layer includes a first plasma process to roughen the surface of the polymer layer and loosen contaminants, and a second plasma process to make the polymer layer smoother or make the polymer layer less rough. An etch process may be used between the first plasma process and the second plasma process to remove the contaminants loosened by the first plasma process. In an embodiment, the polymer layer exhibits a surface roughness between about 1% and about 8% as measured by Atomic Force Microscopy (AFM) with the index of surface area difference percentage (SADP) and/or has surface contaminants of less than about 1% of Ti, less than about 1% of F, less than about 1.5% Sn, and less than about 0.4% of Pb.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: January 14, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Chung-Shi Liu, Chen-Hua Yu, Wei-Yu Chen, Cheng-Ting Chen
  • Patent number: 8571699
    Abstract: Processing defects arising during processing of a semiconductor wafer prior to back-grinding are reduced with systems and methods of sensor placement. One or more holes are bored into a chuck table for receiving semiconductor wafers, or a support table next to the chuck table. One or more sensors are disposed in the holes for monitoring parameters during a pre-back-grinding (PBG) process. A control box converts a set of signals received from the sensors. A computer-implemented process control tool receives the converted set of signals from the control box and determines whether the PBG process will continue.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: October 29, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Cheng-Ting Chen, James Hu, Chung-Shi Liu
  • Publication number: 20130011937
    Abstract: A method of reducing manufacturing defects of semiconductor wafers during a back-grinding process. The method includes receiving a semiconductor wafer on a chuck table, wherein said chuck table has a surface upon which a front side of the wafer is placed, and wherein said chuck table has one or more holes in surface and one or more sensors placed in said one or more holes. The method further includes grinding at least a portion of a back side of the semiconductor wafer. The method further includes monitoring a parameter, while grinding, measured by the one or more sensors and adjusting the grinding based at least on the monitored parameter.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Fa LU, Chiang-Hao LEE, Wei-Yu CHEN, Chung-Shi LIU
  • Publication number: 20120326298
    Abstract: A semiconductor device includes a barrier layer between a solder bump and a post-passivation interconnect (PPI) layer. The barrier layer is formed of at least one of an electroless nickel (Ni) layer, an electroless palladium (Pd) layer or an immersion gold (Au) layer.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 27, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Fa LU, Chung-Shi LIU, Mirng-Ji LII, Chen-Hua YU
  • Patent number: 8298041
    Abstract: In a system or method for controlling wafer back-grinding, a chuck table has a surface for supporting a semiconductor wafer during a back-grinding process, one or more holes in the surface, and one or more sensors disposed in the one or more holes for monitoring a parameter during back-grinding. A computer-implemented process control tool is coupled to receive one or mote outputs from the one or more sensors and control the back-grinding process based on the received one or more outputs.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 30, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Chiang-Hao Lee, Wei-Yu Chen, Chung-Shi Liu
  • Publication number: 20120091367
    Abstract: A method of forming an integrated circuit includes providing a wafer, and a tape adhered to the wafer, wherein the tape has a main surface perpendicular to a first direction. The tape is exposed to a light to cause the tape to lose adhesion. In the step of exposing the tape, the wafer and the tape are rotated, and/or the light is tilt projected onto the tape, wherein a main projecting direction of the light and the first direction form a tilt angle greater than zero degrees and less than 90 degrees.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 19, 2012
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Hsiang Hu, Chen-Fa Lu, Chung-Shi Liu
  • Publication number: 20120088316
    Abstract: In a system or method for controlling wafer back-grinding, a chuck table has a surface for supporting a semiconductor wafer during a back-grinding process, one or more holes in the surface, and one or more sensors disposed in the one or more holes for monitoring a parameter during back-grinding. A computer-implemented process control tool is coupled to receive one or mote outputs from the one or more sensors and control the back-grinding process based on the received one or more outputs.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Fa LU, Chiang-Hao LEE, Wei-Yu CHEN, Chung-Shi LIU
  • Publication number: 20120065764
    Abstract: Processing defects arising during processing of a semiconductor wafer prior to back-grinding are reduced with systems and methods of sensor placement. One or more holes are bored into a chuck table for receiving semiconductor wafers, or a support table next to the chuck table. One or more sensors are disposed in the holes for monitoring parameters during a pre-back-grinding (PBG) process. A control box converts a set of signals received from the sensors. A computer-implemented process control tool receives the converted set of signals from the control box and determines whether the PBG process will continue.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 15, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-FA LU, Cheng-Ting CHEN, James HU, Chung-Shi LIU
  • Publication number: 20120032337
    Abstract: Apparatus and methods for providing a package substrate and assembly for a flip chip integrated circuit. A substrate is provided having a solder mask layer, openings in the solder mask layer for conductive bump pads, and openings in the solder mask layer between the conductive bump pads exposing a dielectric layer underneath the solder mask layer. A flip chip integrated circuit is attached to the substrate using a thermal reflow to reflow conductive solder bumps on the integrated circuit to the conductive bump pads. An underfill material is dispensed beneath the integrated circuit and physically contacting the dielectric layer of the substrate. In additional embodiments, one or more integrated circuits are flip chip mounted to the substrate. The resulting assembly has improved thermal characteristics over the assemblies of the prior art.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 9, 2012
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Chen-Hua Yu, Chung-Shi Liu
  • Publication number: 20110309490
    Abstract: A semiconductor device having a polymer layer and a method of fabricating the same is provided. A two-step plasma treatment for a surface of the polymer layer includes a first plasma process to roughen the surface of the polymer layer and loosen contaminants, and a second plasma process to make the polymer layer smoother or make the polymer layer less rough. An etch process may be used between the first plasma process and the second plasma process to remove the contaminants loosened by the first plasma process. In an embodiment, the polymer layer exhibits a surface roughness between about 1% and about 8% as measured by Atomic Force Microscopy (AFM) with the index of surface area difference percentage (SADP) and/or has surface contaminants of less than about 1% of Ti, less than about 1% of F, less than about 1.5% Sn, and less than about 0.4% of Pb.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Fa Lu, Chung-Shi Liu, Chen-Hua Yu, Wei-Yu Chen, Cheng-Ting Chen
  • Patent number: 6555477
    Abstract: A method for preventing or reducing corrosion of copper containing semiconductor features during chemical mechanical polishing (CMP) including providing a semiconductor wafer polishing surface including a copper layer overlying a copper filled anisotropically etched feature; polishing the semiconductor wafer polishing surface according to a first CMP process to remove at least a portion the copper layer to reveal a portion of an underlying barrier/adhesion layer; polishing the semiconductor wafer polishing surface according to a second CMP process including applying a neutralizing solution; polishing the semiconductor wafer polishing surface according to a third CMP process including applying a copper corrosion inhibitor solution; and, polishing the semiconductor wafer polishing surface according to at least a fourth CMP process to remove a remaining portion of the underlying barrier/adhesion layer.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: April 29, 2003
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chen-Fa Lu, Chin-Hsiung Ho, Mei-Ling Chen, Liang-Kun Huang
  • Patent number: 6524959
    Abstract: Within a method for fabricating a microelectronic fabrication there is first provided a substrate having formed thereover a minimum of one microelectronic layer, where the minimum of one microelectronic layer is at least partially transparent to an incident radiation beam. There is then chemical mechanical polish (CMP) planarized the minimum of one microelectronic layer, while employing a chemical mechanical polish (CMP) planarizing method, to form from the minimum of one microelectronic layer a minimum of one chemical mechanical polish (CMP) planarized microelectronic layer.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: February 25, 2003
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chen-Fa Lu, Chen-Peng Fan, Jui-Ping Chuang, Tien-Chen Hu
  • Patent number: 6517413
    Abstract: A new method is provided for endpoint detection of the polishing of a copper surface. The amount of copper dioxide that is removed from the surface that is being polished is monitored by means of a laser beam that is reflected off the polishing pad that is used for the polishing operation. The reflected light beam is analyzed for color content, based on this analysis it can be determined at what time no more copper dioxide is present on the surface of the polishing pad, which is the time that the process of removing copper from the surface that is being polished is complete. The polishing process is stopped at that time.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: February 11, 2003
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Tien-Chen Hu, Jin-Churng Twu, Chen-Fa Lu
  • Patent number: 5566426
    Abstract: A cuff link including a base, which has two parallel blocks at the top and a longitudinal top open chamber defined between the blocks, which blocks each having a pivot hole and a side opening communicated between the respective pivot hole and the top open chamber, a button, which has a shank, which has two pivot pins respectively inserted through the side openings on the blocks into the pivot holes thereof for permitting the button to be turned relative to the base between the fastening position and the unfastening position, and a spring plate inserted into the top open chamber to support the shank and to prevent the pivot pins from moving out of the pivot holes.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: October 22, 1996
    Inventor: Cheng-Fa Lu