Patents by Inventor Reza A. Pagaila

Reza A. Pagaila 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: 11688612
    Abstract: A semiconductor device has an interposer mounted over a carrier. The interposer includes TSV formed either prior to or after mounting to the carrier. An opening is formed in the interposer. The interposer can have two-level stepped portions with a first vertical conduction path through a first stepped portion and second vertical conduction path through a second stepped portion. A first and second semiconductor die are mounted over the interposer. The second die is disposed within the opening of the interposer. A discrete semiconductor component can be mounted over the interposer. A conductive via can be formed through the second die or encapsulant. An encapsulant is deposited over the first and second die and interposer. A portion of the interposer can be removed to that the encapsulant forms around a side of the semiconductor device. An interconnect structure is formed over the interposer and second die.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 27, 2023
    Assignee: STATS ChipPAC Pte Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo, HeeJo Chi
  • Patent number: 10998248
    Abstract: A semiconductor wafer contains a plurality of semiconductor die each having a plurality of contact pads. A sacrificial adhesive is deposited over the contact pads. Alternatively, the sacrificial adhesive is deposited over the carrier. An underfill material can be formed between the contact pads. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier such that the sacrificial adhesive is disposed between the contact pads and temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and sacrificial adhesive is removed to leave a via over the contact pads. An interconnect structure is formed over the encapsulant. The interconnect structure includes a conductive layer which extends into the via for electrical connection to the contact pads. The semiconductor die is offset from the interconnect structure by a height of the sacrificial adhesive.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 4, 2021
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Patent number: 10643952
    Abstract: A semiconductor device has a plurality of first semiconductor die mounted over an interface layer formed over a temporary carrier. An encapsulant is deposited over the first die and carrier. A flat shielding layer is formed over the encapsulant. A channel is formed through the shielding layer and encapsulant down to the interface layer. A conductive material is deposited in the channel and electrically connected to the shielding layer. The interface layer and carrier are removed. An interconnect structure is formed over conductive material, encapsulant, and first die. The conductive material is electrically connected through the interconnect structure to a ground point. The conductive material is singulated to separate the first die. A second semiconductor die can be mounted over the first die such that the shielding layer covers the second die and the conductive material surrounds the second die or the first and second die.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: May 5, 2020
    Assignee: JCET Semiconductor (Shaoxing) Co., Ltd.
    Inventors: Reza A. Pagaila, Flynn Carson, Seung Uk Yoon
  • Patent number: 10388584
    Abstract: A semiconductor device has a temporary layer, such as a dam material or adhesive layer, formed over a carrier. A plurality of recesses is formed in the temporary layer. A first semiconductor die is mounted within the recesses of the temporary layer. An encapsulant is deposited over the first semiconductor die and temporary layer. The encapsulant extends into the recesses in the temporary layer. The carrier and temporary layer are removed to form recessed interconnect areas around the first semiconductor die. Alternatively, the recessed interconnect areas can be formed the carrier or encapsulant. Multiple steps can be formed in the recesses of the temporary layer. A conductive layer is formed over the first semiconductor die and encapsulant and into the recessed interconnect areas. A second semiconductor die can be mounted on the first semiconductor die. The semiconductor device can be integrated into PiP and Fi-PoP arrangements.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: August 20, 2019
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Byung Tai Do, Linda Pei Ee Chua
  • Patent number: 10068843
    Abstract: In a semiconductor device, a first semiconductor die is mounted with its active surface oriented to a temporary carrier. An encapsulant is deposited over the first semiconductor die and temporary carrier. The temporary carrier is removed to expose a first side of the encapsulant and active surface of the first semiconductor die. A masking layer is formed over the active surface of the first semiconductor die. A first interconnect structure is formed over the first side of the encapsulant. The masking layer blocks formation of the first interconnect structure over the active surface of the first semiconductor die. The masking layer is removed to form a cavity over the active surface of the first semiconductor die. A second semiconductor die is mounted in the cavity. The second semiconductor die is electrically connected to the active surface of the first semiconductor die with a short signal path.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: September 4, 2018
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventor: Reza A. Pagaila
  • Publication number: 20180108542
    Abstract: A semiconductor device has an interposer mounted over a carrier. The interposer includes TSV formed either prior to or after mounting to the carrier. An opening is formed in the interposer. The interposer can have two-level stepped portions with a first vertical conduction path through a first stepped portion and second vertical conduction path through a second stepped portion. A first and second semiconductor die are mounted over the interposer. The second die is disposed within the opening of the interposer. A discrete semiconductor component can be mounted over the interposer. A conductive via can be formed through the second die or encapsulant. An encapsulant is deposited over the first and second die and interposer. A portion of the interposer can be removed to that the encapsulant forms around a side of the semiconductor device. An interconnect structure is formed over the interposer and second die.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 19, 2018
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo, HeeJo Chi
  • Patent number: 9893045
    Abstract: A semiconductor device has a first semiconductor die mounted over a carrier. An interposer frame has an opening in the interposer frame and a plurality of conductive pillars formed over the interposer frame. The interposer is mounted over the carrier and first die with the conductive pillars disposed around the die. A cavity can be formed in the interposer frame to contain a portion of the first die. An encapsulant is deposited through the opening in the interposer frame over the carrier and first die. Alternatively, the encapsulant is deposited over the carrier and first die and the interposer frame is pressed against the encapsulant. Excess encapsulant exits through the opening in the interposer frame. The carrier is removed. An interconnect structure is formed over the encapsulant and first die. A second semiconductor die can be mounted over the first die or over the interposer frame.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 13, 2018
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Seng Guan Chow, Seung Uk Yoon, Byung Tai Do, Linda Pei Ee Chua
  • Patent number: 9875911
    Abstract: A semiconductor device has an interposer mounted over a carrier. The interposer includes TSV formed either prior to or after mounting to the carrier. An opening is formed in the interposer. The interposer can have two-level stepped portions with a first vertical conduction path through a first stepped portion and second vertical conduction path through a second stepped portion. A first and second semiconductor die are mounted over the interposer. The second die is disposed within the opening of the interposer. A discrete semiconductor component can be mounted over the interposer. A conductive via can be formed through the second die or encapsulant. An encapsulant is deposited over the first and second die and interposer. A portion of the interposer can be removed to that the encapsulant forms around a side of the semiconductor device. An interconnect structure is formed over the interposer and second die.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 23, 2018
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo, HeeJo Chi
  • Patent number: 9824975
    Abstract: A semiconductor device comprises a first semiconductor die. An encapsulant is disposed around the first semiconductor die. A first stepped interconnect structure is disposed over a first surface of the encapsulant. An opening is formed in the first stepped interconnect structure. The opening in the first stepped interconnect structure is over the first semiconductor die. A second semiconductor die is disposed in the opening of the first stepped interconnect structure. A second stepped interconnect structure is disposed over the first stepped interconnect structure. A conductive pillar is formed through the encapsulant.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: November 21, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Byung Tai Do, Linda Pei Ee Chua
  • Patent number: 9754858
    Abstract: A semiconductor device has a TSV semiconductor wafer with a cavity formed in a first surface of the wafer. A second cavity can be formed in a second surface of the wafer. A plurality of semiconductor die is mounted within the cavities. The semiconductor die can be mounted side-by-side and/or stacked within the cavity. Conductive TSV can be formed through the die. An encapsulant is deposited within the cavity over the die. A CTE of the die is similar to a CTE of the encapsulant. A first interconnect structure is formed over a first surface of the encapsulant and wafer. A second interconnect structure is formed over a second surface of the encapsulant and wafer. The first and second interconnect structure are electrically connected to the TSV wafer. A second semiconductor die can be mounted over the first interconnect structure with encapsulant deposited over the second die.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: September 5, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Seung Uk Yoon
  • Patent number: 9685403
    Abstract: A semiconductor device has a plurality of conductive vias formed partially through a substrate. A conductive layer is formed over the substrate and electrically connected to the conductive vias. A semiconductor die is mounted over the substrate. An encapsulant is deposited over the semiconductor die and substrate. A trench is formed through the encapsulant around the semiconductor die. A shielding layer is formed over the encapsulant. The trench is formed partially through the substrate and the shielding layer is formed in the trench partially through the substrate. An insulating layer can be formed in the trench prior to forming the shielding layer. A portion of the substrate is removed to expose the conductive vias. An interconnect structure is formed over the substrate opposite the semiconductor die. The interconnect structure is electrically connected to the conductive vias. The shielding layer is electrically connected to the interconnect structure.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 20, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventor: Reza A. Pagaila
  • Patent number: 9679881
    Abstract: A semiconductor wafer has a plurality of first semiconductor die with a stress sensitive region. A masking layer or screen is disposed over the stress sensitive region. An underfill material is deposited over the wafer. The masking layer or screen prevents formation of the underfill material adjacent to the sensitive region. The masking layer or screen is removed leaving a cavity in the underfill material adjacent to the sensitive region. The semiconductor wafer is singulated into the first die. The first die can be mounted to a build-up interconnect structure or to a second semiconductor die with the cavity separating the sensitive region and build-up interconnect structure or second die. A bond wire is formed between the first and second die and an encapsulant is deposited over the first and second die and bond wire. A conductive via can be formed through the first or second die.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: June 13, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Byung Tai Do, Linda Pei Ee Chua
  • Patent number: 9679824
    Abstract: A semiconductor die has a conductive layer including a plurality of trace lines formed over a carrier. The conductive layer includes a plurality of contact pads electrically continuous with the trace lines. A semiconductor die has a plurality of contact pads and bumps formed over the contact pads. A plurality of conductive pillars can be formed over the contact pads of the semiconductor die. The bumps are formed over the conductive pillars. The semiconductor die is mounted to the conductive layer with the bumps directly bonded to an end portion of the trace lines to provide a fine pitch interconnect. An encapsulant is deposited over the semiconductor die and conductive layer. The conductive layer contains wettable material to reduce die shifting during encapsulation. The carrier is removed. An interconnect structure is formed over the encapsulant and semiconductor die. An insulating layer can be formed over the conductive layer.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 13, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Rajendra D. Pendse, Jun Mo Koo
  • Patent number: 9640504
    Abstract: A semiconductor device is made by providing a sacrificial substrate and depositing an adhesive layer over the sacrificial substrate. A first conductive layer is formed over the adhesive layer. A polymer pillar is formed over the first conductive layer. A second conductive layer is formed over the polymer pillar to create a conductive pillar with inner polymer core. A semiconductor die or component is mounted over the substrate. An encapsulant is deposited over the semiconductor die or component and around the conductive pillar. A first interconnect structure is formed over a first side of the encapsulant. The first interconnect structure is electrically connected to the conductive pillar. The sacrificial substrate and adhesive layers are removed. A second interconnect structure is formed over a second side of the encapsulant opposite the first interconnect structure. The second interconnect structure is electrically connected to the conductive pillar.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: May 2, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Byung Tai Do, Shuangwu Huang
  • Patent number: 9620455
    Abstract: A semiconductor wafer contains a plurality of semiconductor die with bumps formed over contact pads on an active surface of the semiconductor die. An ACF is deposited over the bumps and active surface of the wafer. An insulating layer can be formed between the ACF and semiconductor die. The semiconductor wafer is singulated to separate the die. The semiconductor die is mounted to a temporary carrier with the ACF oriented to the carrier. The semiconductor die is forced against the carrier to compress the ACF under the bumps and form a low resistance electrical interconnect to the bumps. An encapsulant is deposited over the semiconductor die and carrier. The carrier is removed. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected through the compressed ACF to the bumps. The ACF reduces shifting of the semiconductor die during encapsulation.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: April 11, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Patent number: 9601369
    Abstract: A semiconductor wafer has a plurality of semiconductor die separated by a peripheral region. A trench is formed in the peripheral region of the wafer. A via is formed on the die. The trench extends to and is continuous with the via. A first conductive layer is deposited in the trench and via to form conductive TSV. The first conductive layer is conformally applied or completely fills the trench and via. The trench has a larger area than the vias which accelerates formation of the first conductive layer. A second conductive layer is deposited over a front surface of the die. The second conductive layer is electrically connected to the first conductive layer. The first and second conductive layers can be formed simultaneously. A portion of a back surface of the wafer is removed to expose the first conductive layer. The die can be electrically interconnected through the TSVs.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: March 21, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Byung Tai Do, Reza A. Pagaila
  • Patent number: 9589910
    Abstract: A semiconductor device has a base substrate with first and second opposing surfaces. A first etch-resistant conductive layer is formed over the first surface of the base substrate. A second etch-resistant conductive layer is formed over the second surface of the base substrate. A first semiconductor die has bumps formed over contact pads on an active surface of the first die. The first die is mounted over a first surface of the first conductive layer. An encapsulant is deposited over the first die and base substrate. A portion of the base substrate is removed to form electrically isolated base leads between opposing portions of the first and second conductive layers. A second semiconductor die is mounted over the encapsulant and a second surface of the first conductive layer between the base leads. A height of the base leads is greater than a thickness of the second die.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 7, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Dioscoro A. Merilo
  • Publication number: 20170062390
    Abstract: A semiconductor device has conductive pillars formed over a carrier. A first semiconductor die is mounted over the carrier between the conductive pillars. An encapsulant is deposited over the first semiconductor die and carrier and around the conductive pillars. A recess is formed in a first surface of the encapsulant over the first semiconductor die. The recess has sloped or stepped sides. A first interconnect structure is formed over the first surface of the encapsulant. The first interconnect structure follows a contour of the recess in the encapsulant. The carrier is removed. A second interconnect structure is formed over a second surface of the encapsulant and first semiconductor die. The first and second interconnect structures are electrically connected to the conductive pillars. A second semiconductor die is mounted in the recess. A third semiconductor die is mounted over the recess and second semiconductor die.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: Linda Pei Ee Chua, Byung Tai Do, Reza A. Pagaila
  • Patent number: RE48111
    Abstract: A semiconductor device has a first semiconductor die mounted over a carrier. An interposer frame has an opening in the interposer frame and a plurality of conductive pillars formed over the interposer frame. The interposer is mounted over the carrier and first die with the conductive pillars disposed around the die. A cavity can be formed in the interposer frame to contain a portion of the first die. An encapsulant is deposited through the opening in the interposer frame over the carrier and first die. Alternatively, the encapsulant is deposited over the carrier and first die and the interposer frame is pressed against the encapsulant. Excess encapsulant exits through the opening in the interposer frame. The carrier is removed. An interconnect structure is formed over the encapsulant and first die. A second semiconductor die can be mounted over the first die or over the interposer frame.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 21, 2020
    Assignee: JCET Semiconductor (Shaoxing) Co. Ltd.
    Inventors: Reza A. Pagaila, Seng Guan Chow, Seung Uk Yoon, Byung Tai Do, Linda Pei Ee Chua
  • Patent number: RE48408
    Abstract: A semiconductor device has a first semiconductor die mounted over a carrier. An interposer frame has an opening in the interposer frame and a plurality of conductive pillars formed over the interposer frame. The interposer is mounted over the carrier and first die with the conductive pillars disposed around the die. A cavity can be formed in the interposer frame to contain a portion of the first die. An encapsulant is deposited through the opening in the interposer frame over the carrier and first die. Alternatively, the encapsulant is deposited over the carrier and first die and the interposer frame is pressed against the encapsulant. Excess encapsulant exits through the opening in the interposer frame. The carrier is removed. An interconnect structure is formed over the encapsulant and first die. A second semiconductor die can be mounted over the first die or over the interposer frame.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: January 26, 2021
    Inventors: Reza A. Pagaila, Seng Guan Chow, Seung UK Yoon, Byung Tai Do, Linda Pei Ee Chua