Patents by Inventor Jaynal A. Molla

Jaynal A. Molla 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: 20190109060
    Abstract: Molded air cavity packages and methods for producing molded air cavity packages are disclosed. In one embodiment, the molded air cavity package includes a molded package body having an upper peripheral edge portion, an air cavity around which the upper peripheral edge portion extends, and a cover piece bonded to the upper peripheral edge portion to enclose the air cavity. The cover piece has a lower peripheral edge portion, which cooperates with the upper peripheral edge portion to define a cover-body interface. The cover-body interface includes an annular channel extending around the cover-body interface, as taken about the package centerline, and first and second hardstop features formed on the upper peripheral edge portion of the molded package body and on the lower peripheral edge portion of the cover piece, respectively. The hardstop features contact to determine a vertical height of the annular channel, as taken along the package centerline.
    Type: Application
    Filed: December 5, 2018
    Publication date: April 11, 2019
    Applicant: NXP USA, INC.
    Inventors: AUDEL SANCHEZ, LAKSHMINARAYAN VISWANATHAN, FERNANDO A. SANTOS, JAYNAL A. MOLLA
  • Publication number: 20190098743
    Abstract: High thermal performance microelectronic modules containing sinter-bonded heat dissipation structures are provided, as are methods for the fabrication thereof. In various embodiments, the method includes the steps or processes of providing a module substrate, such as a circuit board, including a cavity having metallized sidewalls. A sinter-bonded heat dissipation structure is formed within the cavity. The sintered-bonded heat dissipation structure is formed, at least in part, by inserting a prefabricated thermally-conductive body, such as a metallic (e.g., copper) coin into the cavity. A sinter precursor material (e.g., a metal particle-containing paste) is dispensed or otherwise applied into the cavity and onto surfaces of the prefabricated thermally-conductive body before, after, or concurrent with insertion of the prefabricated thermally-conductive body.
    Type: Application
    Filed: November 28, 2018
    Publication date: March 28, 2019
    Applicant: NXP USA, INC.
    Inventors: JAYNAL A. MOLLA, LAKSHMINARAYAN VISWANATHAN, ELIE A. MAALOUF, GEOFFREY TUCKER
  • Publication number: 20190051571
    Abstract: Molded air cavity packages and methods for producing molded air cavity packages are disclosed. In one embodiment, the molded air cavity package includes a base flange, retention posts integrally formed with the base flange and extending from the flange frontside in a direction opposite the flange backside, and retention tabs having openings through which the retention posts are received. A molded package body is bonded to the base flange and envelopes, at least in substantial part, the retention posts and the retention tabs. The molded air cavity package further includes package leads extending from the molded package body. In certain implementations, the package leads and the retention tabs comprise singulated portions of a leadframe. Additionally or alternatively, the retention posts may be staked or otherwise physically deformed in a manner preventing disengagement of the retention posts from the retention tabs along a centerline of the molded air cavity package.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 14, 2019
    Applicant: NXP USA, INC.
    Inventors: AUDEL SANCHEZ, LAKSHMINARAYAN VISWANATHAN, FERNANDO A. SANTOS, JAYNAL A. MOLLA
  • Publication number: 20190043774
    Abstract: Molded air cavity packages and methods for producing molded air cavity packages are disclosed. In one embodiment, the molded air cavity package includes a base flange, retention posts integrally formed with the base flange and extending from the flange frontside in a direction opposite the flange backside, and retention tabs having openings through which the retention posts are received. A molded package body is bonded to the base flange and envelopes, at least in substantial part, the retention posts and the retention tabs. The molded air cavity package further includes package leads extending from the molded package body. In certain implementations, the package leads and the retention tabs comprise singulated portions of a leadframe. Additionally or alternatively, the retention posts may be staked or otherwise physically deformed in a manner preventing disengagement of the retention posts from the retention tabs along a centerline of the molded air cavity package.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 7, 2019
    Applicant: NXP USA, INC.
    Inventors: AUDEL SANCHEZ, LAKSHMINARAYAN VISWANATHAN, FERNANDO A. SANTOS, JAYNAL A. MOLLA
  • Publication number: 20190043775
    Abstract: Molded air cavity packages and methods for producing molded air cavity packages are disclosed. In one embodiment, the molded air cavity package includes a molded package body having an upper peripheral edge portion, an air cavity around which the upper peripheral edge portion extends, and a cover piece bonded to the upper peripheral edge portion to enclose the air cavity. The cover piece has a lower peripheral edge portion, which cooperates with the upper peripheral edge portion to define a cover-body interface. The cover-body interface includes an annular channel extending around the cover-body interface, as taken about the package centerline, and first and second hardstop features formed on the upper peripheral edge portion of the molded package body and on the lower peripheral edge portion of the cover piece, respectively. The hardstop features contact to determine a vertical height of the annular channel, as taken along the package centerline.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 7, 2019
    Applicant: NXP USA, INC.
    Inventors: AUDEL SANCHEZ, LAKSHMINARAYAN VISWANATHAN, FERNANDO A. SANTOS, JAYNAL A. MOLLA
  • Patent number: 10199302
    Abstract: Molded air cavity packages and methods for producing molded air cavity packages are disclosed. In one embodiment, the molded air cavity package includes a base flange, retention posts integrally formed with the base flange and extending from the flange frontside in a direction opposite the flange backside, and retention tabs having openings through which the retention posts are received. A molded package body is bonded to the base flange and envelopes, at least in substantial part, the retention posts and the retention tabs. The molded air cavity package further includes package leads extending from the molded package body. In certain implementations, the package leads and the retention tabs comprise singulated portions of a leadframe. Additionally or alternatively, the retention posts may be staked or otherwise physically deformed in a manner preventing disengagement of the retention posts from the retention tabs along a centerline of the molded air cavity package.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: February 5, 2019
    Assignee: NXP USA, INC.
    Inventors: Audel Sanchez, Lakshminarayan Viswanathan, Fernando A. Santos, Jaynal A. Molla
  • Patent number: 10199303
    Abstract: Molded air cavity packages and methods for producing molded air cavity packages are disclosed. In one embodiment, the molded air cavity package includes a molded package body having an upper peripheral edge portion, an air cavity around which the upper peripheral edge portion extends, and a cover piece bonded to the upper peripheral edge portion to enclose the air cavity. The cover piece has a lower peripheral edge portion, which cooperates with the upper peripheral edge portion to define a cover-body interface. The cover-body interface includes an annular channel extending around the cover-body interface, as taken about the package centerline, and first and second hardstop features formed on the upper peripheral edge portion of the molded package body and on the lower peripheral edge portion of the cover piece, respectively. The hardstop features contact to determine a vertical height of the annular channel, as taken along the package centerline.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: February 5, 2019
    Assignee: NXP USA, INC.
    Inventors: Audel Sanchez, Lakshminarayan Viswanathan, Fernando A. Santos, Jaynal A. Molla
  • Publication number: 20190013242
    Abstract: A method of wafer dicing includes singulating dies from a semiconductor wafer. The method further includes depositing a metal layer on back sides of the singulated dies, wherein a portion of the metal layer continues beyond the backs sides of the singulated dies to deposit at least partially on lateral sides of the singulated dies. A packaged die includes a semiconductor die and a metal outer layer deposited on the back side of the semiconductor die and on a portion of the lateral side of the semiconductor die nearest the back side. The packaged die further includes a substrate mounted to the back side of the semiconductor die a die attach material that bonds the substrate to the metal outer layer deposited on the semiconductor die, wherein the metal outer layer and the die attach material surround the back edge of the semiconductor die.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 10, 2019
    Inventors: Jaynal A. Molla, Lakshminarayan Viswanathan, David Abdo, Colby Greg Rampley, Fernando A. Santos
  • Patent number: 10141182
    Abstract: Microelectronic systems having embedded heat dissipation structures are disclosed, as are methods for fabricating such microelectronic systems. In various embodiments, the method includes the steps or processes of obtaining a substrate having a tunnel formed therethrough, attaching a microelectronic component to a frontside of the substrate at a location covering the tunnel, and producing an embedded heat dissipation structure at least partially within the tunnel after attaching the microelectronic component to the substrate. The step of producing may include application of a bond layer precursor material into the tunnel and onto the microelectronic component from a backside of the substrate. The bond layer precursor material may then be subjected to sintering process or otherwise cured to form a thermally-conductive component bond layer in contact with the microelectronic component.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: November 27, 2018
    Assignee: NXP USA, INC.
    Inventors: Jaynal A. Molla, Lakshminarayan Viswanathan, Geoffrey Tucker
  • Patent number: 9941210
    Abstract: An embodiment of a semiconductor die includes a base semiconductor substrate and an electrically conductive through substrate via (TSV) extending between the surfaces of the base semiconductor substrate. The bottom surface of the base semiconductor substrate includes a recessed region proximate to the TSV so that an end of the TSV protrudes from the bottom surface, and so that the TSV sidewall has an exposed portion at the protruding end of the TSV. Back metal, consisting of one or more metallic layers, is deposited on the bottom surface of the base semiconductor substrate and in contact with the TSV. The back metal can include a gold layer, a sintered metallic layer, and/or a plurality of other conductive layers. The die may be attached to a substrate using solder, another sintered metallic layer, or other materials.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: April 10, 2018
    Assignee: NXP USA, INC.
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla, Mali Mahalingam, Colby Rampley
  • Publication number: 20180082915
    Abstract: Air cavity packages and methods for producing air cavity packages containing sintered bonded components, multipart window frames, and/or other unique structural features are disclosed. In one embodiment, a method for fabricating an air cavity package includes the step or process of forming a first metal particle-containing precursor layer between a base flange and a window frame positioned over the base flange. A second metal particle-containing precursor layer is further formed between the base flange and a microelectronic device positioned over the base flange. The metal particle-containing precursor layers are sintered substantially concurrently at a maximum processing temperature less than melt point(s) of metal particles within the layers to produce a first sintered bond layer from the first precursor layer joining the window frame to the base flange and to produce a second sintered bond layer from the second precursor layer joining the microelectronic device to the base flange.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 22, 2018
    Applicant: FREESCALE SEMICONDUCTOR INC.
    Inventors: LAKSHMINARAYAN VISWANATHAN, JAYNAL A. MOLLA, DAVID ABDO, MALI MAHALINGAM, CARL D'ACOSTA
  • Patent number: 9922894
    Abstract: Air cavity packages and methods for producing air cavity packages containing sintered bonded components, multipart window frames, and/or other unique structural features are disclosed. In one embodiment, a method for fabricating an air cavity package includes the step or process of forming a first metal particle-containing precursor layer between a base flange and a window frame positioned over the base flange. A second metal particle-containing precursor layer is further formed between the base flange and a microelectronic device positioned over the base flange. The metal particle-containing precursor layers are sintered substantially concurrently at a maximum processing temperature less than melt point(s) of metal particles within the layers to produce a first sintered bond layer from the first precursor layer joining the window frame to the base flange and to produce a second sintered bond layer from the second precursor layer joining the microelectronic device to the base flange.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: March 20, 2018
    Assignee: NXP USA, INC.
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla, David Abdo, Mali Mahalingam, Carl D'Acosta
  • Patent number: 9875987
    Abstract: An electronic device includes a semiconductor die having a lower surface, a sintered metallic layer underlying the lower surface of the semiconductor die, a conductive layer underlying the sintered metallic layer, and a conductive substrate underlying the conductive layer.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: January 23, 2018
    Assignee: NXP USA, INC.
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla
  • Publication number: 20180012815
    Abstract: A method of manufacturing a packaged semiconductor device includes forming an assembly by placing a semiconductor die over a substrate with a die attach material between the semiconductor die and the substrate. A conformal structure which includes a pressure transmissive material contacts at least a portion of a top surface of the semiconductor die. A pressure is applied to the conformal structure and in turn, the pressure is transmitted to the top surface of the semiconductor die by the pressure transmissive material. While the pressure is applied, concurrently encapsulating the assembly with a molding compound and exposing the assembly to a temperature that is sufficient to cause the die attach material to sinter.
    Type: Application
    Filed: September 20, 2017
    Publication date: January 11, 2018
    Inventors: LI LI, Jaynal A. Molla, Lakshminarayan Viswanathan
  • Patent number: 9799580
    Abstract: A method of manufacturing a packaged semiconductor device includes forming an assembly by placing a semiconductor die over a substrate with a die attach material between the semiconductor die and the substrate. A conformal structure which includes a pressure transmissive material contacts at least a portion of a top surface of the semiconductor die. A pressure is applied to the conformal structure and in turn, the pressure is transmitted to the top surface of the semiconductor die by the pressure transmissive material. While the pressure is applied, concurrently encapsulating the assembly with a molding compound and exposing the assembly to a temperature that is sufficient to cause the die attach material to sinter.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 24, 2017
    Assignee: NXP USA, INC.
    Inventors: Li Li, Jaynal A. Molla, Lakshminarayan Viswanathan
  • Publication number: 20170278763
    Abstract: A method of manufacturing a packaged semiconductor device includes forming an assembly by placing a semiconductor die over a substrate with a die attach material between the semiconductor die and the substrate. A conformal structure which includes a pressure transmissive material contacts at least a portion of a top surface of the semiconductor die. A pressure is applied to the conformal structure and in turn, the pressure is transmitted to the top surface of the semiconductor die by the pressure transmissive material. While the pressure is applied, concurrently encapsulating the assembly with a molding compound and exposing the assembly to a temperature that is sufficient to cause the die attach material to sinter.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 28, 2017
    Inventors: Li LI, Jaynal A. MOLLA, Lakshminarayan VISWANATHAN
  • Publication number: 20170263529
    Abstract: A semiconductor device and a method of manufacturing the same include a die and a planar thermal layer, and a thick-silver layer having a thickness of at least four (4) micrometers disposed directly onto a first planar side of the planar thermal layer, as well as a metallurgical die-attach disposed between the thick-silver layer and the die, the metallurgical die-attach directly contacting the thick-silver layer.
    Type: Application
    Filed: May 30, 2017
    Publication date: September 14, 2017
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla
  • Patent number: 9698116
    Abstract: A semiconductor device and a method of manufacturing the same include a die and a planar thermal layer, and a thick-silver layer having a thickness of at least four (4) micrometers disposed directly onto a first planar side of the planar thermal layer, as well as a metallurgical die-attach disposed between the thick-silver layer and the die, the metallurgical die-attach directly contacting the thick-silver layer.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 4, 2017
    Assignee: NXP USA, INC.
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla
  • Patent number: 9589860
    Abstract: An electronic device includes a semiconductor die having a lower surface, a sintered metallic layer underlying the lower surface of the semiconductor die, a thermally conductive flow layer underlying the sintered metallic layer, and a thermally conductive substrate underlying the thermally conductive flow layer.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 7, 2017
    Assignee: NXP USA, INC.
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla
  • Patent number: 9538659
    Abstract: An embodiment of a solder wettable flange includes a flange body formed from a conductive material. The flange body has a bottom surface, a top surface, sidewalls extending between the top surface and the bottom surface, and one or more depressions extending into the flange body from the bottom surface. Each depression is defined by a depression surface that may or may not be solder wettable. During solder attachment of the flange to a substrate, the depressions may function as reservoirs for excess solder. Embodiments also include devices and systems that include such solder wettable flanges, and methods for forming the solder wettable flanges, devices, and systems.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: January 3, 2017
    Assignee: NXP USA, INC.
    Inventors: Lakshminarayan Viswanathan, Jaynal A. Molla, Mahesh K. Shah