Patents by Inventor Siu Waf Low

Siu Waf Low 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: 8698295
    Abstract: A wafer level package, and a semiconductor wafer, an electronic system, and a memory module that include one or more of the wafer level packages, and methods of fabricating the die packages on a wafer level, and integrated circuit modules that include one or more packages are provided. In one embodiment, the die package comprises a redistribution layer interconnecting two or more dies disposed on a substrate, typically a semiconductor wafer, the redistribution layer including a first trace connecting a bond pad of each of two dies, and a second trace connecting one of the bond pads of the two dies to a ball pad. The die package of the invention can comprise memory devices such as static random access memories (SRAMs), and can be incorporated into a variety of electronic systems as part of memory packages such as single in line memory modules (SIMMs) or dual in line memory modules (DIMMs).
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 15, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Yong Poo Chia, Suan Jeung Boon, Siu Waf Low, Yong Loo Neo, Bok Leng Ser
  • Patent number: 8304894
    Abstract: A wafer level package, and a semiconductor wafer, electronic system, and a memory module that include one or more of the wafer level packages, and methods of fabricating the die packages on a wafer level, and integrated circuit modules that include one or more die packages are provided. In one embodiment, the die package comprises a redistribution layer interconnecting two or more dies disposed on a substrate, typically a semiconductor wafer, the redistribution layer including a first trace connecting a bond pad of each of two dies, and a second trace connecting one of the bond pads of the two dies to a ball pad. The die package of the invention can comprise memory devices such as static random access memories (SRAMs), and can be incorporated into a variety of electronic systems as part of memory packages such as single in-line memory modules (SIMMs) or dual in-line memory modules.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: November 6, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Yong Poo Chia, Suan Jeung Boon, Siu Waf Low, Yong Loo Neo, Bok Leng Ser
  • Patent number: 8063493
    Abstract: A sacrificial substrate for fabricating semiconductor device assemblies and packages with edge contacts includes conductive elements on a surface thereof, which are located so as to align along a street between each adjacent pair of semiconductor devices on the device substrate. A semiconductor device assembly or package includes a semiconductor device, a redistribution layer over an active surface of the semiconductor device, and dielectric material coating at least portions of an outer periphery of the semiconductor device. Peripheral sections of contacts are located on the peripheral edge and electrically isolated therefrom by the dielectric coating. The contacts may also include upper sections that extend partially over the active surface of the semiconductor device. The assembly or package may include any type of semiconductor device, including a processor, a memory device, and emitter, or an optically sensitive device.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: November 22, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Meow Koon Eng, Siu Waf Low
  • Patent number: 7884007
    Abstract: A wafer level package, and a semiconductor wafer, electronic system, and a memory module that include one or more of the wafer level packages, and methods of fabricating the die packages on a wafer level, and integrated circuit modules that include one or more packages are provided. In one embodiment, the die package comprises a redistribution layer interconnecting two or more dies disposed on a substrate, typically a semiconductor wafer, the redistribution layer including a first trace connecting a bond pad of each of two dies, and a second trace connecting one of the bond pads of the two dies to a ball pad. The die package of the invention can comprise memory devices such as static random access memories (SRAMs), and can be incorporated into a variety of electronic systems as part of a memory package such as single in line memory modules (SIMMs) or dual in line memory modules.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: February 8, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Yong Poo Chia, Suan Jeung Boon, Siu Waf Low, Yong Loo Neo, Bok Leng Ser
  • Publication number: 20100072603
    Abstract: A sacrificial substrate for fabricating semiconductor device assemblies and packages with edge contacts includes conductive elements on a surface thereof, which are located so as to align along a street between each adjacent pair of semiconductor devices on the device substrate. A semiconductor device assembly or package includes a semiconductor device, a redistribution layer over an active surface of the semiconductor device, and dielectric material coating at least portions of an outer periphery of the semiconductor device. Peripheral sections of contacts are located on the peripheral edge and electrically isolated therefrom by the dielectric coating. The contacts may also include upper sections that extend partially over the active surface of the semiconductor device. The assembly or package may include any type of semiconductor device, including a processor, a memory device, and emitter, or an optically sensitive device.
    Type: Application
    Filed: November 30, 2009
    Publication date: March 25, 2010
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Meow Koon Eng, Siu Waf Low
  • Patent number: 7633159
    Abstract: A sacrificial substrate for fabricating semiconductor device assemblies and packages with edge contacts includes conductive elements on a surface thereof, which are located so as to align along a street between each adjacent pair of semiconductor devices on the device substrate. A semiconductor device assembly or package includes a semiconductor device, a redistribution layer over an active surface of the semiconductor device, and dielectric material coating at least portions of an outer periphery of the semiconductor device. Peripheral sections of contacts are located on the peripheral edge and electrically isolated therefrom by the dielectric coating. The contacts may also include upper sections that extend partially over the active surface of the semiconductor device. The assembly or package may include any type of semiconductor device, including a processor, a memory device, and emitter, or an optically sensitive device.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: December 15, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Meow Koon Eng, Siu Waf Low
  • Patent number: 7579681
    Abstract: A wafer level package, and a semiconductor wafer, electronic system, and a memory module that include one or more of the wafer level packages, and methods of fabricating the die packages on a wafer level, and integrated circuit modules that include one or more packages are provided. In one embodiment, the die package comprises a redistribution layer interconnecting two or more dies disposed on a substrate, typically a semiconductor wafer, the redistribution layer including a first trace connecting a bond pad of each of two dies, and a second trace connecting one of the bond pads of the two dies to a ball pad. The die package of the invention can comprise memory devices such as static random access memories (SRAMs), and can be incorporated into a variety of electronic systems as part of a memory package such as single in line memory modules (SIMMs) or dual in line memory modules.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: August 25, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Yong Poo Chia, Suan Jeung Boon, Siu Waf Low, Yong Loo Neo, Bok Leng Ser
  • Patent number: 7553697
    Abstract: A semiconductor device package and method of fabricating the same are disclosed. The semiconductor device package may include a variety of semiconductor dice, thereby providing a system on a chip solution. The semiconductor dice are attached to connection locations associated with a conductive trace layer such as through flip-chip technology. A plurality of circuit connection elements is also coupled to the conductive trace layer, either directly or through additional, intervening conductive trace layers. An encapsulation layer may be formed over the dice and substrate. Portions of the circuit connection elements remain exposed through the encapsulation layer for connection to external devices. A plurality of conductive bumps may be formed, each conductive bump being disposed atop an exposed portion of a circuit connection element, to facilitate electrical connection with an external device.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: June 30, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Meow Koon Eng, Yong Poo Chia, Yong Loo Neo, Suan Jeung Boon, Siu Waf Low, Swee Kwang Chua, Suangwu Huang
  • Patent number: 7485562
    Abstract: The present invention defines a packaging implementation providing a multichip multilayer system on a chip solution. Greater integration of a plurality and variety of known good die contained within cavities formed in a separate substrate is achieved. Additional redistribution and interconnect layers above the multichip configuration may be formed with the redistribution layers terminating in electrical connections such as conductive bumps or balls. In one embodiment, the substrate cavities receive signal device connections, such as conductive bumps, of a plurality of semiconductor dice in a flip-chip configuration. A portion of the substrate's back surface is then removed to a depth sufficient to expose the conductive bumps. In another embodiment, the cavities receive the semiconductor dice with their active surface facing up, wherein metal layer connections are formed and coupled to bond pads or other electrical connectors of the semiconductor dice.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: February 3, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Swee Kwang Chua, Siu Waf Low, Yong Poo Chia, Meow Koon Eng, Yong Loo Neo, Suan Jeung Boon, Suangwu Huang, Wei Zhou
  • Patent number: 7368374
    Abstract: A wafer level package, and a semiconductor wafer, electronic system, and a memory module that include one or more of the wafer level packages, and methods of fabricating the die packages on a wafer level, and integrated circuit modules that include one or more packages are provided. In one embodiment, the die package comprises a redistribution layer interconnecting two or more dies disposed on a substrate, typically a semiconductor wafer, the redistribution layer including a first trace connecting a bond pad of each of two dies, and a second trace connecting one of the bond pads of the two dies to a ball pad. The die package of the invention can comprise memory devices such as static random access memories (SRAMs), and can be incorporated into a variety of electronic systems as part of a memory package such as single in line memory modules (SIMMs) or dual in line memory modules.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: May 6, 2008
    Assignee: Micron Technology Inc.
    Inventors: Yong Poo Chia, Suan Jeung Boon, Siu Waf Low, Yong Loo Neo, Bok Leng Ser
  • Patent number: 7304375
    Abstract: Systems and methods for packaging integrated circuit chips in castellation wafer level packaging are provided. The active circuit areas of the chips are coupled to castellation blocks and, depending on the embodiment, input/output pads. The castellation blocks and input/output pads are encapsulated and held in place by an encapsulant. When the devices are being fabricated, the castellation blocks and input/output pads are sawed through. If necessary, the wafer portion on which the devices are fabricated may be thinned. The packages may be used as a leadless chip carrier package or may be stacked on top of one another. When stacked, the respective contacts of the packages are preferably coupled. Data may be written to, and received from, packaged chips when a chip is activated. Chips may be activated by applying the appropriate signal or signals to the appropriate contact or contacts.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: December 4, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Siu Waf Low, Meow Koon Eng, Swee Kwang Chua, Shuang Wu Huang, Yong Loo Neo, Wei Zhou
  • Patent number: 7274094
    Abstract: A leadless image sensor package and methods for its assembly. In a first embodiment, an image sensor chip is mounted within a bottom-side cavity of a package shell in a flip-chip manner such that sensing circuitry on the image sensor chip is exposed through an aperture in the top side of the package shell. A transparent encapsulant material is deposited within the aperture to encase interconnect bonds between the package shell and the image sensor chip. A transparent lid is held in place over the aperture by the encapsulant material. The back surface of the image sensor chip is left exposed. In a second embodiment particularly suitable for high-end image sensors, an encapsulant material is not required. Instead, a backing cap is hermetically sealed to a ledge surface in the package shell to cover the bottom-side cavity. A compression member formed on the backing cap contacts the image sensor chip and maintains interconnect bond integrity.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: September 25, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Yong Loo Neo, Swee Kwang Chua, Siu Waf Low
  • Patent number: 7271027
    Abstract: Systems and methods for packaging integrated circuit chips in castellation wafer level packaging are provided. The active circuit areas of the chips are coupled to castellation blocks and, depending on the embodiment, input/output pads. The castellation blocks and input/output pads are encapsulated and held in place by an encapsulant. When the devices are being fabricated, the castellation blocks and input/output pads are sawed through. If necessary, the wafer portion on which the devices are fabricated may be thinned. The packages may be used as a leadless chip carrier package or may be stacked on top of one another. When stacked, the respective contacts of the packages are preferably coupled. Data may be written to, and received from, packaged chips when a chip is activated. Chips may be activated by applying the appropriate signal or signals to the appropriate contact or contacts.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: September 18, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Siu Waf Low, Meow Koon Eng, Swee Kang Chua, Shuang Wu Huang, Yong Loo Neo, Wei Zhou
  • Patent number: 7208335
    Abstract: A method for fabricating a chip-scale package includes securing a device substrate that carries at least two adjacent semiconductor devices to a sacrificial substrate. The sacrificial substrate may include conductive elements on a surface thereof, which are located so as to align along a street between each adjacent pair of semiconductor devices on the device substrate. The device substrate is then severed along each street and the newly formed peripheral edge of each semiconductor device coated with dielectric material. If the sacrificial substrate includes conductive elements, they may be exposed between adjacent semiconductor devices and subsequently serve as lower sections of contacts. Peripheral sections of contacts are formed on the peripheral edge. Upper sections of the contacts may also be formed over the active surfaces of the semiconductor devices. Once the contacts are formed, the sacrificial substrate is substantially removed from the back sides of the semiconductor devices.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: April 24, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Meow Koon Eng, Siu Waf Low
  • Patent number: 7193312
    Abstract: Systems and methods for packaging integrated circuit chips in castellation wafer level packaging are provided. The active circuit areas of the chips are coupled to castellation blocks and, depending on the embodiment, input/output pads. The castellation blocks and input/output pads are encapsulated and held in place by an encapsulant. When the devices are being fabricated, the castellation blocks and input/output pads are sawed through. If necessary, the wafer portion on which the devices are fabricated may be thinned. The packages may be used as a leadless chip carrier package or may be stacked on top of one another. When stacked, the respective contacts of the packages are preferably coupled. Data may be written to, and received from, packaged chips when a chip is activated. Chips may be activated by applying the appropriate signal or signals to the appropriate contact or contacts.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: March 20, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Siu Waf Low, Meow Koon Eng, Swee Kwang Chua, Shuang Wu Huang, Yong Loo Neo, Wei Zhou
  • Patent number: 7173330
    Abstract: A semiconductor device package and method of fabricating the same. The semiconductor device package may include a variety of semiconductor dice, thereby providing a system on a chip solution. The semiconductor dice are attached to connection locations associated with a conductive trace layer such as through flip-chip technology. A plurality of circuit connection elements is also coupled to the conductive trace layer, either directly or through additional, intervening conductive trace layers. An encapsulation layer may be formed over the dice and substrate. Portions of the circuit connection elements remain exposed through the encapsulation layer for connection to external devices. A plurality of conductive bumps may be formed, each conductive bump being disposed atop an exposed portion of a circuit connection element, to facilitate electrical connection with an external device.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 6, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Meow Koon Eng, Yong Poo Chia, Yong Loo Neo, Suan Jeung Boon, Siu Waf Low, Swee Kwang Chua, Suangwu Huang
  • Patent number: 7112471
    Abstract: A leadless image sensor package and methods for its assembly. In a first embodiment, an image sensor chip is mounted within a bottom-side cavity of a package shell in a flip-chip manner such that sensing circuitry on the image sensor chip is exposed through an aperture in the top side of the package shell. A transparent encapsulant material is deposited within the aperture to encase interconnect bonds between the package shell and the image sensor chip. A transparent lid is held in place over the aperture by the encapsulant material. The back surface of the image sensor chip is left exposed. In a second embodiment particularly suitable for high-end image sensors, an encapsulant material is not required. Instead, a backing cap is hermetically sealed to a ledge surface in the package shell to cover the bottom-side cavity. A compression member formed on the backing cap contacts the image sensor chip and maintains interconnect bond integrity.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: September 26, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Suan Jeung Boon, Yong Poo Chia, Yong Loo Neo, Swee Kwang Chua, Siu Waf Low
  • Patent number: 7087992
    Abstract: The present invention defines a packaging implementation providing a multichip multilayer system on a chip solution. Greater integration of a plurality and variety of known good die contained within cavities formed in a separate substrate is achieved. Additional redistribution and interconnect layers above the multichip configuration may be formed with the redistribution layers terminating in electrical connections such as conductive bumps or balls. In one embodiment, the substrate cavities receive signal device connections, such as conductive bumps, of a plurality of semiconductor dice in a flip-chip configuration. A portion of the substrate's back surface is then removed to a depth sufficient to expose the conductive bumps. In another embodiment, the cavities receive the semiconductor dice with their active surface facing up, wherein metal layer connections are formed and coupled to bond pads or other electrical connectors of the semiconductor dice.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: August 8, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Swee Kwang Chua, Siu Waf Low, Yong Poo Chia, Meow Koon Eng, Yong Loo Neo, Suan Jeung Boon, Suangwu Huang, Wei Zhou
  • Patent number: 6987031
    Abstract: A semiconductor device package and method of fabricating the same. The semiconductor device package may include a variety of semiconductor dice, thereby providing a system on a chip solution. The semiconductor dice are attached to connection locations associated with a conductive trace layer such as through flip-chip technology. A plurality of circuit connection elements is also coupled to the conductive trace layer, either directly or through additional, intervening conductive trace layers. An encapsulation layer may be formed over the dice and substrate. Portions of the circuit connection elements remain exposed through the encapsulation layer for connection to external devices. A plurality of conductive bumps may be formed, each conductive bump being disposed atop an exposed portion of a circuit connection element, to facilitate electrical connection with an external device.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: January 17, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Meow Koon Eng, Yong Poo Chia, Yong Loo Neo, Suan Jeung Boon, Siu Waf Low, Swee Kwang Chua, Suangwu Huang
  • Patent number: 6964881
    Abstract: The present invention defines a packaging implementation providing a multichip multilayer system on a chip solution. Greater integration of a plurality and variety of known good die are contained within cavities formed in a separate substrate is achieved. Additional redistribution and interconnect layers above the multichip configuration may be formed with the redistribution layers terminating in electrical connections such as conductive bumps or balls. In one embodiment, the cavities of the substrate receive signal device connections, such as conductive bumps, of a plurality of semiconductor dice in a flip-chip configuration. A portion of the back surface of the substrate is then removed to a depth sufficient to expose the conductive bumps. In another embodiment, the cavities receive the semiconductor dice with the active surface of the semiconductor dice facing up, wherein metal layer connections are formed and coupled bond pads or other electrical connectors of the semiconductor dice.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: November 15, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Swee Kwang Chua, Siu Waf Low, Yong Poo Chia, Meow Koon Eng, Yong Loo Neo, Suan Jeung Boon, Suangwu Huang, Wei Zhou