Patents Assigned to PIMEMS, INC.
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Patent number: 12140385Abstract: The present application discloses two-phase cooling devices that may include at least three substrates, a metal with a wicking structure, an intermediate substrate, and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The titanium thermal ground plane may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages.Type: GrantFiled: October 28, 2022Date of Patent: November 12, 2024Assignee: PiMEMS, Inc.Inventor: Payam Bozorgi
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Patent number: 11859914Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor chamber for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The intermediate substrate may form narrow channels within the wicking structure, providing high capillary forces to support large pressure differences between the liquid and vapor phases, while minimizing viscous losses of the liquid flowing in the wicking structure.Type: GrantFiled: December 2, 2021Date of Patent: January 2, 2024Assignee: PIMEMS, INC.Inventor: Payam Bozorgi
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Publication number: 20230384045Abstract: The present application discloses two-phase cooling devices that may include at least three substrates, a metal with a wicking structure, an intermediate substrate, and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The titanium thermal ground plane may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages.Type: ApplicationFiled: October 28, 2022Publication date: November 30, 2023Applicant: PiMEMS, Inc.Inventor: Payam BOZORGI
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Patent number: 11512912Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The titanium thermal ground plane may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages.Type: GrantFiled: April 27, 2020Date of Patent: November 29, 2022Assignee: PiMEMS, Inc.Inventor: Payam Bozorgi
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Publication number: 20220099383Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor chamber for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The intermediate substrate may form narrow channels within the wicking structure, providing high capillary forces to support large pressure differences between the liquid and vapor phases, while minimizing viscous losses of the liquid flowing in the wicking structure.Type: ApplicationFiled: December 2, 2021Publication date: March 31, 2022Applicant: PiMEMS, Inc.Inventor: Payam Bozorgi
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Publication number: 20220059829Abstract: The present application discloses a microfabricated micron-scale battery having excellent performance attributes. The battery using a titanium anode which is etched to form a plurality of raised features on the titanium anode. The raised features are coated conformally with a highly conductive metal. A layer of titanium is then formed over the highly conductive metal. This titanium layer is then oxidized to provide further small scale roughness. The roughness increases the surface area which improves the uptake of lithium ions by the anode. The battery can be combined with a titanium thermal ground plane to further enhance performance by removing heat from the battery.Type: ApplicationFiled: December 17, 2019Publication date: February 24, 2022Applicant: PiMEMS, Inc.Inventors: Payam BOZORGI, Shannon Gott
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Patent number: 11215403Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The intermediate substrate may form narrow channels within the wicking structure, providing high capillary forces to support large pressure differences between the liquid and vapor phases, while minimizing viscous losses of the liquid flowing in the wicking structure.Type: GrantFiled: August 16, 2019Date of Patent: January 4, 2022Assignee: PiMEMS, Inc.Inventor: Payam Bozorgi
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Patent number: 10813251Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. The titanium thermal module may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages. The thermal module may also have a metal layer which may act as a shield for radiation or an antenna for radiation, or may add mechanical strength to the thermal module.Type: GrantFiled: January 18, 2020Date of Patent: October 20, 2020Assignee: PiMEMS, Inc.Inventor: Payam Bozorgi
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Publication number: 20200256628Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The titanium thermal ground plane may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages.Type: ApplicationFiled: April 27, 2020Publication date: August 13, 2020Applicant: PiMEMS, Inc.Inventor: Payam BOZORGI
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Patent number: 10670352Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The titanium thermal ground plane may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages.Type: GrantFiled: May 9, 2017Date of Patent: June 2, 2020Assignee: PiMEMS, Inc.Inventor: Payam Bozorgi
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Publication number: 20200154605Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. The titanium thermal module may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages. The thermal module may also have a metal layer which may act as a shield for radiation or an antenna for radiation, or may add mechanical strength to the thermal module.Type: ApplicationFiled: January 18, 2020Publication date: May 14, 2020Applicant: PiMEMS, Inc.Inventor: Payam BOZORGI
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Patent number: 10561041Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. The titanium thermal module may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages. The thermal module may also have a metal layer which may act as a shield for radiation or an antenna for radiation, or may add mechanical strength to the thermal module.Type: GrantFiled: September 20, 2018Date of Patent: February 11, 2020Assignee: PiMEMS, Inc.Inventor: Payam Bozorgi
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Publication number: 20200003500Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The intermediate substrate may form narrow channels within the wicking structure, providing high capillary forces to support large pressure differences between the liquid and vapor phases, while minimizing viscous losses of the liquid flowing in the wicking structure.Type: ApplicationFiled: August 16, 2019Publication date: January 2, 2020Applicant: PiMEMS, Inc.Inventor: Payam BOZORGI
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Patent number: 10458719Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The intermediate substrate may form narrow channels within the wicking structure, providing high capillary forces to support large pressure differences between the liquid and vapor phases, while minimizing viscous losses of the liquid flowing in the wicking structure.Type: GrantFiled: January 19, 2016Date of Patent: October 29, 2019Assignee: PiMEMS, Inc.Inventors: Payam Bozorgi, Carl Meinhart
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Publication number: 20190116691Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. The titanium thermal module may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages. The thermal module may also have a metal layer which may act as a shield for radiation or an antenna for radiation, or may add mechanical strength to the thermal module.Type: ApplicationFiled: September 20, 2018Publication date: April 18, 2019Applicant: PiMEMS, Inc.Inventor: Payam BOZORGI
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Publication number: 20180106553Abstract: The present application discloses a thermal ground plane that is charged by laser welding a cover on an aperture. Prior to sealing, the thermal ground plane is filled with a quantity of a working fluid, and the device is heated until the working fluid is boiling in the cavity. Accordingly, the cavity is filled with the working fluid and with a saturated vapor of the working fluid. When the saturated vapor has displaced other gases, the cavity is laser welded shut.Type: ApplicationFiled: October 10, 2017Publication date: April 19, 2018Applicant: PiMEMS, Inc.Inventors: Payam BOZORGI, Shannon C. Gott, Timothy Reed
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Publication number: 20180094871Abstract: A two-phase cooling device, including a predetermined amount of at least one working fluid, a cavity formed from at least one of a metal structure or a metal alloy structure, at least one opening formed in the structure, wherein said opening is configured as a port for partial filling of the cavity with the at least one working fluid, and at least one cover for said opening, wherein said cover is configured to be sealed to the opening, to prevent said working fluid from leaving the cavity, and to prevent contaminants and non-condensable gas from entering the cavity.Type: ApplicationFiled: September 16, 2017Publication date: April 5, 2018Applicants: PiMEMS, Inc., The Regents of the University of CaliforniaInventors: Payam Bozorgi, Carl D. Meinhart
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Publication number: 20170338167Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor cavity for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The titanium thermal ground plane may be adapted for use in a mobile device, such as a portable device or smartphone, where it may offer compelling performance advantages.Type: ApplicationFiled: May 9, 2017Publication date: November 23, 2017Applicant: PiMEMS, Inc.Inventor: Payam BOZORGI
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Publication number: 20160377353Abstract: A two-phase cooling device, including a predetermined amount of at least one working fluid, a cavity formed from at least one of a metal structure or a metal alloy structure, at least one opening formed in the structure, wherein said opening is configured as a port for partial filling of the cavity with the at least one working fluid, and at least one cover for said opening, wherein said cover is configured to be sealed to the opening, to prevent said working fluid from leaving the cavity, and to prevent contaminants and non-condensable gas from entering the cavity.Type: ApplicationFiled: June 24, 2015Publication date: December 29, 2016Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, PIMEMS, INC.Inventors: Payam Bozorgi, Carl D. Meinhart