Patents by Inventor Mahbub Rashed
Mahbub Rashed 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).
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Patent number: 8904324Abstract: A parameterized cell for planar and finFET designs is provided. A parameterized cell (Pcell) describing a planar design is integrated with fin-based design criteria, including fin pitch. For material regions in a planar design that have a corresponding region in a fin design, a quantized value based on the fin pitch is computed. The material can include regions such as active area silicon, contact regions, and local interconnect regions.Type: GrantFiled: March 15, 2013Date of Patent: December 2, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Navneet Jain, Paul D. Mesa, Qinglei Wang, Qi Xiang, Mahbub Rashed
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Publication number: 20140346662Abstract: Methods for accommodating a non-integer multiple of the M2 pitch for the cell height of a semiconductor cell and the resulting devices are disclosed. Embodiments may include forming a cell within an integrated circuit (IC) with a height of a first integer and a remainder times a track pitch of a metal track layer, and forming power rails within the metal track layer at boundaries of the cell accommodating for the remainder.Type: ApplicationFiled: May 24, 2013Publication date: November 27, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Mahbub RASHED, Lei YUAN
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Publication number: 20140339647Abstract: One method disclosed herein includes forming first and second transistor devices in and above adjacent active regions that are separated by an isolation region, wherein the transistors comprise a source/drain region and a shared gate structure, forming a continuous conductive line that spans across the isolation region and contacts the source/drain regions of the transistors and etching the continuous conductive line to form separated first and second unitary conductive source/drain contact structures that contact the source/drain regions of the first and second transistors, respectively.Type: ApplicationFiled: May 14, 2013Publication date: November 20, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Mahbub Rashed, Juhan Kim, Yunfei Deng, Suresh Venkatesan
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Publication number: 20140339610Abstract: Embodiments of the present invention provide a novel method and structure for forming finFET structures that comprise standard cells. An H-shaped cut mask is used to reduce the number of fins that need to be removed, hence increasing the fin efficiency.Type: ApplicationFiled: May 14, 2013Publication date: November 20, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Mahbub Rashed, Juhan Kim, Yunfei Deng, Jongwook Kye, Suresh Venkatesan
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Publication number: 20140332967Abstract: An approach for providing SRAM bit cells with double patterned metal layer structures is disclosed. Embodiments include: providing, via a first patterning process, a word line structure, a ground line structure, a power line structure, or a combination thereof; and providing, via a second patterning process, a bit line structure proximate the word line structure, the ground line structure, the power line structure, or a combination thereof Embodiments include: providing a first landing pad as the word line structure, and a second landing pad as the ground line structure; and providing the first landing pad to have a first tip edge and a first side edge, and the second landing pad to have a second tip edge and a second side edge, wherein the first side edge faces the second side edge.Type: ApplicationFiled: July 22, 2014Publication date: November 13, 2014Inventors: Juhan KIM, Mahbub RASHED
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Patent number: 8881083Abstract: A design methodology for routing for an integrated circuit is disclosed. The method includes placement of cells having double diffusion breaks, which create an extended intercell region. Metal layer prohibit zones are defined to prohibit any M1 structures in the prohibit zones. Metal layer allow zones are placed adjacent to outer metal lines, and jogs are formed in the metal layer allow zones. Vias and viabars may then be applied on the jogs.Type: GrantFiled: May 1, 2013Date of Patent: November 4, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Yunfei Deng, Lei Yuan, Hidekazu Yoshida, Juhan Kim, Mahbub Rashed, Jongwook Kye
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Patent number: 8859416Abstract: A computer-readable software product is provided for executing a method of determining the location of a plurality of power rail vias in a semiconductor device. The semiconductor device includes an active region and a power rail. Locations of a first via and a second via are assigned along the power rail. The spacing between the location of the first via and the location of the second via is a minimum spacing allowable. The spacing between the location of the second via and the locations of structures in the active region which may electrically interfere with the second via is determined. The location of the second via is changed in response to the spacing between the location of the second via and the location of one of the structures in the active region being less than a predetermined distance.Type: GrantFiled: April 24, 2012Date of Patent: October 14, 2014Assignee: GLOBALFOUNDRIES, Inc.Inventors: David S. Doman, Mahbub Rashed, Marc Tarrabia
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Publication number: 20140258960Abstract: An approach and apparatus are provided for optimizing and combining different semiconductor technologies into a single graphic data system. Embodiments include generating a planar semiconductor layout design, generating a three-dimensional (e.g., FinFET) semiconductor layout design, and combining the planar design and the FinFET design in a common graphic data system.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Navneet Jain, Yunfei Deng, Mahbub Rashed, David Doman, Qi Xiang, Jongwook Kye
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Patent number: 8823178Abstract: An approach for providing SRAM bit cells with double patterned metal layer structures is disclosed. Embodiments include: providing, via a first patterning process, a word line structure, a ground line structure, a power line structure, or a combination thereof; and providing, via a second patterning process, a bit line structure proximate the word line structure, the ground line structure, the power line structure, or a combination thereof. Embodiments include: providing a first landing pad as the word line structure, and a second landing pad as the ground line structure; and providing the first landing pad to have a first tip edge and a first side edge, and the second landing pad to have a second tip edge and a second side edge, wherein the first side edge faces the second side edge.Type: GrantFiled: September 14, 2012Date of Patent: September 2, 2014Assignee: GlobalFoundries Inc.Inventors: Juhan Kim, Mahbub Rashed
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Patent number: 8789000Abstract: A system and design methodology for performing routing in an integrated circuit design is disclosed. An integrated circuit design is first created using standard cells having metal level 2 (M2) power rails. Routing is performed and power rail current density for the integrated circuit is computed. Standard cells that have power rail current density below a predetermined threshold are replaced with a functionally equivalent standard cell that does not have M2 power rails, and the routing operation is performed again, until the design converges.Type: GrantFiled: April 16, 2013Date of Patent: July 22, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Mahbub Rashed, Lei Yuan, Jongwook Kye, Suresh Venkatesan
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Publication number: 20140183638Abstract: Methodology enabling selectively connecting fin structures using a segmented trench salicide layer, and the resulting device are disclosed. Embodiments include: providing on a substrate at least one gate structure; providing first and second fin structures in a vertical direction intersecting with the at least one gate structure; and providing a first segment of a salicide layer, the first segment being formed along a horizontal direction and being connected with the second fin structure and separated from the first fin structure.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Mahbub RASHED, Srikanth Samavedam, David Doman, Navneet Jain, Subramani Kengeri, Suresh Venkatesan
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Patent number: 8741763Abstract: An approach for providing layout designs with via routing structures is disclosed. Embodiments include: providing a gate structure and a diffusion contact on a substrate; providing a gate contact on the gate structure; providing a metal routing structure that does not overlie a portion of the gate contact, the diffusion contact, or a combination thereof; and providing a via routing structure over the portion and under a part of the metal routing structure to couple the gate contact, the diffusion contact, or a combination thereof to the metal routing structure.Type: GrantFiled: May 7, 2012Date of Patent: June 3, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Yuansheng Ma, Jongwook Kye, Harry Levinson, Hidekazu Yoshida, Mahbub Rashed
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Patent number: 8735050Abstract: Integrated circuits and methods for fabricating integrated circuits are provided. One method includes creating a master pattern layout including first and second adjacent cells. The first adjacent cell has a first border pin with a first routing line. The second adjacent cell has a second border pin with a second routing line. The first and second routing lines overlap to define an edge-edge stitch to couple the first and second border pins. The master pattern layout is decomposed into sub-patterns.Type: GrantFiled: August 6, 2012Date of Patent: May 27, 2014Assignee: GLOBALFOUNDRIES, Inc.Inventors: Lei Yuan, Hidekazu Yoshida, Jongwook Kye, Qi Xiang, Mahbub Rashed
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Publication number: 20140131816Abstract: An approach for providing cross-coupling-based designs using diffusion contact structures is disclosed. Embodiments include providing first and second gate structures over a substrate; providing a gate cut region across the first gate structure, the second gate structure, or a combination thereof; providing a first gate contact over the first gate structure; providing a second gate contact over the second gate structure; and providing a diffusion contact structure coupling the first gate contact to the second gate contact, the diffusion contact structure having vertices within the gate cut region.Type: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: GLOBALFOUNDERS Inc.Inventors: Yan WANG, Yuansheng MA, Jongwook KYE, Mahbub RASHED
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Publication number: 20140097892Abstract: A method for enabling functionality in circuit designs utilizing colorless DPT M1 route placement that maintains high routing efficiency and guarantees M1 decomposability of a target pattern and the resulting circuit are disclosed. Embodiments include: determining a boundary abutting first and second cells in an IC; determining a side of a first edge pin in the first cell facing a side of a second edge pin in the second cell; determining a first vertical segment of at least a portion of the side of the first edge pin and a second vertical segment of at least a portion of the side of the second edge pin; designating an area between the first vertical segment and the boundary as a first portion of a routing zone; and designating an area between the second vertical segment and the boundary as a second portion of the routing zone.Type: ApplicationFiled: October 8, 2012Publication date: April 10, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Lei Yuan, Jongwook Kye, Mahbub Rashed, Qinglei Wang
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Patent number: 8689154Abstract: An approach for providing timing-closed FinFET designs from planar designs is disclosed. Embodiments include: receiving one or more planar cells associated with a planar design; generating an initial FinFET design corresponding to the planar design based on the planar cells and a FinFET model; and processing the initial FinFET design to provide a timing-closed FinFET design. Other embodiments include: determining a race condition associated with a path of the initial FinFET design based on a timing analysis of the initial FinFET design; and increasing delay associated with the path to resolve hold violations associated with the race condition, wherein the processing of the initial FinFET design is based on the delay increase.Type: GrantFiled: April 13, 2012Date of Patent: April 1, 2014Assignee: GlobalFoundries Inc.Inventors: Mahbub Rashed, David Doman, Dinesh Somasekhar, Yan Wang, Yunfei Deng, Navneet Jain, Jongwook Kye, Ali Keshavarzi, Subramani Kengeri, Suresh Venkatesan
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Patent number: 8679911Abstract: An approach for providing cross-coupling-based designs using diffusion contact structures is disclosed. Embodiments include providing first and second gate structures over a substrate; providing a gate cut region across the first gate structure, the second gate structure, or a combination thereof; providing a first gate contact over the first gate structure; providing a second gate contact over the second gate structure; and providing a diffusion contact structure coupling the first gate contact to the second gate contact, the diffusion contact structure having vertices within the gate cut region.Type: GrantFiled: May 7, 2012Date of Patent: March 25, 2014Assignee: GlobalFoundries Inc.Inventors: Yan Wang, Yuansheng Ma, Jongwook Kye, Mahbub Rashed
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Publication number: 20140077380Abstract: An approach for providing SRAM bit cells with double patterned metal layer structures is disclosed. Embodiments include: providing, via a first patterning process, a word line structure, a ground line structure, a power line structure, or a combination thereof; and providing, via a second patterning process, a bit line structure proximate the word line structure, the ground line structure, the power line structure, or a combination thereof. Embodiments include: providing a first landing pad as the word line structure, and a second landing pad as the ground line structure; and providing the first landing pad to have a first tip edge and a first side edge, and the second landing pad to have a second tip edge and a second side edge, wherein the first side edge faces the second side edge.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Juhan Kim, Mahbub Rashed
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Patent number: 8677291Abstract: A method for enabling functionality in circuit designs utilizing colorless DPT M1 route placement that maintains high routing efficiency and guarantees M1 decomposability of a target pattern and the resulting circuit are disclosed. Embodiments include: determining a boundary abutting first and second cells in an IC; determining a side of a first edge pin in the first cell facing a side of a second edge pin in the second cell; determining a first vertical segment of at least a portion of the side of the first edge pin and a second vertical segment of at least a portion of the side of the second edge pin; designating an area between the first vertical segment and the boundary as a first portion of a routing zone; and designating an area between the second vertical segment and the boundary as a second portion of the routing zone.Type: GrantFiled: October 8, 2012Date of Patent: March 18, 2014Assignee: GlobalFoundries Inc.Inventors: Lei Yuan, Jongwook Kye, Mahbub Rashed, Qinglei Wang
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Publication number: 20140042641Abstract: An approach for providing MOL constructs using diffusion contact structures is disclosed. Embodiments include: providing a first diffusion region in a substrate; providing, via a first lithography process, a first diffusion contact structure; providing, via a second lithography process, a second diffusion contact structure; and coupling the first diffusion contact structure to the first diffusion region and the second diffusion contact structure. Embodiments include: providing a second diffusion region in the substrate; providing a diffusion gap region between the first and second diffusion regions; providing the diffusion contact structure over the diffusion gap region; and coupling, via the diffusion contact structure, the first and second diffusion regions.Type: ApplicationFiled: August 7, 2012Publication date: February 13, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Mahbub Rashed, Yuansheng Ma, Irene Lin, Jason Stephens, Yunfei Deng, Yuan Lei, Jongwook Kye, Rod Augur, Shibly Ahmed, Subramani Kengeri, Suresh Venkatesan