Patents by Inventor Juan Boon Tan

Juan Boon Tan 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: 9837334
    Abstract: Cooling devices for SOI wafers and methods for forming the devices are presented. A substrate having a top surface layer, a support substrate and an insulator layer isolating the top surface layer from the support substrate is provided. At least one device is disposed in the top surface layer of the substrate. The IC includes a cooling device. The cooling device includes a doped layer which is disposed in a top surface of the support substrate, and a RDL layer disposed within the support substrate below the doped layer for providing connections to hotspots in the doped layer to facilitate thermoelectric conduction of heat in the hotspots away from the hotspots.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: December 5, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Kheng Chok Tee, Juan Boon Tan, Wei Liu, Kam Chew Leong
  • Patent number: 9806128
    Abstract: An interposer for an integrated circuit includes a first side and a second side. The interposer includes a substrate and a via disposed in the substrate. A first electrical contact is disposed on the first side. A second electrical contact is disposed on the second side and electrically connected to the via. The interposer also includes a multiple-time programmable (“MTP”) element electrically connected to the first electrical contact and/or the via.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 31, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Juan Boon Tan, Yi Jiang, Danny Shum, Shunqiang Gong
  • Patent number: 9799571
    Abstract: Methods of producing integrated circuits with interposers and integrated circuits produced from such methods are provided. In an exemplary embodiment, a method of producing an integrated circuit includes producing an interposer with an insulation plate and a plurality of through vias passing through the insulation plate. The interposer has a prime area and an in prime area. A prime area test circuit is formed in the prime area, where the prime area test circuit includes a portion of the plurality of through vias that are electrically connected in series.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: October 24, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Shunqiang Gong, Juan Boon Tan
  • Patent number: 9793185
    Abstract: Embodiments of a method for forming a device using test structures are presented. The method includes providing a wafer with a device layer. The device layer includes a main device region and a perimeter region. The device layer is patterned with active and test patterns. Test patterns include dummy patterns disposed in a test device area. The wafer is processed to form at least one test device disposed in the perimeter region and one or more active devices disposed in the main device region. The test device determines a design window of the one or more active devices. Additional processing is performed to complete forming the device.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 17, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Wanbing Yi, Daxiang Wang, Juan Boon Tan, Kemao Lin, Shaoqiang Zhang
  • Patent number: 9793208
    Abstract: A semiconductor device with a temporary discharge path. During back-end-of-line (BEOL), the temporary discharge path discharges a plasma charge collected in a device well, such as a floating p-type well. After processing, the temporary discharge path is rendered non-function, enabling the device to function properly.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 17, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Haifeng Sheng, Juan Boon Tan, Wanbing Yi, Daxiang Wang, Soh Yun Siah
  • Patent number: 9786839
    Abstract: Emerging memory chips and methods for forming an emerging memory chip are presented. For example, magnetoresistive random access memory (MRAM) chip magnetic shielding and vertical stacking capabilities processed at the wafer-level are disclosed. The method includes providing a magnetic shield in the through silicon vias and/or through silicon trenches surrounding or adjacent to magnetic tunnel junction (MTJ) array within the MRAM region and also at the front side and back side of the chip. Magnetic shield in the through silicon trenches connects front side and back side magnetic shield. Magnetic shield in the through silicon vias provides vertical stacking, magnetic shielding and electrical connection of the MRAM chips to form 3D IC packages. This magnetic shielding method is applicable for both in-plane and perpendicular MRAM chips. The MTJ array is formed in the MRAM region and in between adjacent inter layer dielectric (ILD) levels of the upper ILD layer in the back end of line (BEOL) of the MRAM chip.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: October 10, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Bharat Bhushan, Juan Boon Tan, Wanbing Yi, Pak-Chum Danny Shum
  • Patent number: 9773702
    Abstract: Devices and methods for forming a device are disclosed. The method includes providing a substrate having first and second surfaces. At least one through silicon via (TSV) opening is formed in the substrate. The TSV opening extends through the first and second surfaces of the substrate. An alignment trench corresponding to an alignment mark is formed in the substrate. The alignment trench extends from the first surface of the substrate to a depth shallower than a depth of the TSV opening. A dielectric liner layer is provided over the substrate. The dielectric liner layer at least lines sidewalls of the TSV opening. A conductive layer is provided over the substrate. The conductive layer fills at least the TSV opening to form TSV contact. A redistribution layer (RDL) is formed over the substrate. The RDL layer is patterned using a reticle to form at least one opening which corresponds to a TSV contact pad. The reticle is aligned using the alignment mark in the substrate.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: September 26, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Shunqiang Gong, Juan Boon Tan, Shijie Wang, Mahesh Bhatkar, Daxiang Wang
  • Publication number: 20170236792
    Abstract: Device and method for forming a device are presented. A substrate having circuit component and a back-end-of-line (BEOL) dielectric layer with interconnects is provided. A pad dielectric layer is formed over the BEOL dielectric layer. The pad dielectric layer includes a pad via opening which exposes a surface of one of the interconnects in the BEOL dielectric layer. A pad interconnect is formed on the pad dielectric layer and the pad interconnect is coupled to one of the interconnect in the BEOL dielectric by a pad via contact in the pad via opening. The pad interconnect comprises a pad interconnect pattern which is devoid of 90° angles and any angled structures contained in the pad interconnect pattern less than 90°. A passivation layer is formed on the substrate. The passivation layer lines the pad interconnect and covers an exposed surface of the pad dielectric layer.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 17, 2017
    Inventors: Fook Hong LEE, Juan Boon TAN, Ee Jan KHOR
  • Patent number: 9728474
    Abstract: A semiconductor chip includes an active area including a plurality of integrated circuit structures, a seal ring enclosing the active area, a corner area of the semiconductor chip that is outside of the seal ring, and an electronic test structure disposed within the corner area. Semiconductor wafers including the above-noted semiconductor chips, as well as methods for fabricating semiconductor wafers including the above-noted semiconductor chips, are also disclosed.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: August 8, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Wanbing Yi, Juan Boon Tan, Mahesh Bhatkar, Danny Pak-Chum Shum
  • Patent number: 9711662
    Abstract: Integrated circuits and methods of producing such integrated circuits are provided. In an exemplary embodiment, a method of producing an integrated circuit includes forming an upper interlayer dielectric overlying an optical modulator and a photodetector, where the photodetector has a shoulder and a plug. An etch stop is formed overlying the upper interlayer dielectric. The etch stop is a first, second, and third distance from an uppermost surface of the optical modulator, the shoulder, and the plug, respectively, where the first, second, and third distances are all different from each other. A first, second, and third contact are formed through the upper interlayer dielectric, where the first, second and third contacts are in electrical communication with the optical modulator, the shoulder, and the plug, respectively.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: July 18, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Shunqiang Gong, Benfu Lin, Juan Boon Tan, Ramakanth Alapati
  • Publication number: 20170194229
    Abstract: A method for fabricating an integrated circuit includes forming a first opening in an upper dielectric layer, the first opening having a first width, forming a second opening in a lower dielectric layer, the lower dielectric layer being below the upper dielectric layer, the second opening having a second width that is narrower than the first width, the second opening being substantially centered underneath the first opening so as to form a stepped via structure, conformally depositing an aluminum material layer in the stepped via structure and over the upper dielectric layer, and forming a passivation layer over the aluminum material layer.
    Type: Application
    Filed: December 30, 2015
    Publication date: July 6, 2017
    Inventors: Wanbing Yi, Mahesh Bhatkar, Chin Chuan Neo, Juan Boon Tan
  • Patent number: 9679905
    Abstract: Integrated circuits and methods of producing the same are provide. In an exemplary embodiment, a method includes determining a memory area of the integrated circuit, and forming a select layer overlying the substrate. A portion of the select layer is selectively etched to form a select gate within the memory area. A concentration of an indicator is measured in an etch off-gas during the selective etching of the select layer, and the selective etching of the select layer is terminated when the concentration of the indicator crosses an end point determination concentration.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 13, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Laiqiang Luo, Yew Tuck Clament Chow, Fan Zhang, Huajun Liu, Dong Wang, Danny Pak-Chum Shum, Juan Boon Tan
  • Publication number: 20170162501
    Abstract: Devices and methods for forming a device are presented. The method includes providing a substrate prepared with interlevel dielectric (ILD) layers having interconnect levels. Each of the ILD layers has a metal level dielectric which includes one or more metal lines and a via level dielectric which includes one or more via contacts. A crack stop layer is formed within one of the via level dielectric of one of the ILD layers. The crack stop layer prevents crack formation in the ILD layer or crack propagation to underlying ILD layer.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 8, 2017
    Inventors: Wanbing YI, Cuiling ZHOU, Juan Boon TAN
  • Publication number: 20170125396
    Abstract: A stitched device is disclosed. The stitched device includes first and second base devices having first and second stitched interconnects electrically coupled in a stitching level. This enables a single substrate of the stitched device to have electrically coupled first and second base devices.
    Type: Application
    Filed: January 9, 2017
    Publication date: May 4, 2017
    Inventors: Wei SHAO, Juan Boon TAN, Wei LIU, Wanbing YI
  • Patent number: 9613897
    Abstract: Magnetic core inductors implemented on integrated circuits and methods for fabricating such magnetic core inductors are disclosed. An exemplary magnetic core inductor includes a bottom magnetic plate that includes a center portion and first, second, third, and fourth extension portions extending from the center portion. The exemplary magnetic core inductor includes an interlayer dielectric layer disposed over the bottom magnetic plate, and within the interlayer dielectric layer, first, second, third, and fourth via trenches extending above a respective one of the first, second, third, and fourth extension portions, and a fifth via trench extending above the center portion. The magnetic core inductor further includes a stacked-ring inductor coil including a plurality of inductor rings surrounding the fifth via trench and a top magnetic plate including a center portion and first, second, third, and fourth extension portions extending from the center portion.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: April 4, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Mahesh Bhatkar, Lulu Peng, Wanbing Yi, Juan Boon Tan, Luke England
  • Publication number: 20170092693
    Abstract: Devices and methods of forming a device are disclosed. The method includes providing a substrate defined with at least first and second regions and providing a plurality of interlevel dielectric (ILD) levels having tight pitch over the first and second regions of the substrate. An ILD level of which a two-terminal element disposed thereon corresponds to a first ILD level and its metal level corresponds to Mx, an immediate ILD level overlying the metal level Mx corresponds to a second ILD level includes via level Vx and metal level Mx+1 and the next overlying ILD level corresponds to a third ILD level includes via level Vx+1 and metal level Mx+2. The method includes forming a two-terminal device element is formed in between metal level Mx and via level Vx+1 in the first region.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 30, 2017
    Inventors: Juan Boon TAN, Wanbing YI, Yi JIANG, Curtis Chun-I HSIEH, Danny Pak-Chum SHUM
  • Publication number: 20170092584
    Abstract: A semiconductor device with a temporary discharge path. During back-end-of-line (BEOL), the temporary discharge path discharges a plasma charge collected in a device well, such as a floating p-type well. After processing, the temporary discharge path is rendered non-function, enabling the device to function properly.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 30, 2017
    Inventors: Haifeng SHENG, Juan Boon TAN, Wanbing YI, Daxiang WANG, Soh Yun SIAH
  • Publication number: 20170084820
    Abstract: Integrating magnetic random access memory with logic is disclosed. The magnetic tunnel junction stack of a magnetic memory cell is disposed within a dielectric layer which serves as a via level of an interlevel dielectric layer with a metal level above the via level. An integration scheme for forming dual damascene structures for interconnects can be formed to logic and memory cells easily.
    Type: Application
    Filed: September 23, 2015
    Publication date: March 23, 2017
    Inventors: Juan Boon TAN, Yi JIANG, Daxiang WANG, Fan ZHANG, Francis POH, Danny Pak-Chum SHUM
  • Publication number: 20170054039
    Abstract: Device and a method of forming a device are disclosed. The method includes providing a substrate. The substrate includes a buried oxide (BOX) layer having an initial thickness TB1 sandwiched in between a top surface layer and a base substrate. The top surface layer is processed to form one or more photonic devices and first and second isolation regions. An interlevel dielectric (ILD) layer is formed on the substrate. Through dielectric via (TDV) contacts extending from a top surface of the dielectric ILD layer to within the BOX layer of the substrate are formed. Lower and upper interconnect levels are formed on the ILD layer. A carrier substrate is provided over a top surface of the upper interconnect levels. The base substrate and a portion of the BOX layer are removed to expose a bottom surface of the TDV contacts.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 23, 2017
    Inventors: Shunqiang GONG, Juan Boon TAN, Ramakanth ALAPATI
  • Patent number: 9564575
    Abstract: Integrated circuits with magnetic random access memory (MRAM) and dual encapsulation for double magnesium oxide tunnel barrier structures and methods for fabricating the same are disclosed herein. As an illustration, an integrated circuit includes a magnetic random access memory structure that includes a bottom electrode that has a bottom electrode width and has bottom electrode sidewalls and a fixed layer overlying the bottom electrode that has a fixed layer width that is substantially equal to the bottom electrode width and has fixed layer sidewalls. The MRAM structure of the integrated circuit further includes a free layer overlying a central area of the fixed layer. Still further, the MRAM structure of the integrated circuit includes a first encapsulation layer disposed along the free layer sidewalls and a second encapsulation layer disposed along the bottom electrode sidewalls and the fixed layer sidewalls.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: February 7, 2017
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Danny Pak-Chum Shum, Hai Cong, Yi Jiang, Juan Boon Tan