Patents by Inventor Jiachun Zhou
Jiachun Zhou 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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Publication number: 20240402217Abstract: A test socket for coupling an integrated circuit (IC) chip to a printed circuit board (PCB) is provided. The test socket includes a conductive body having a first surface configured to face the PCB and a second surface configured to face the IC chip. The conductive body defines a signal cavity and a ground cavity extending from the first surface to the second surface. The test socket further includes a signal probe disposed in the signal cavity. The signal probe is configured to electrically connect to a signal conductor of the PCB and to a signal pad of the IC chip. The test socket further includes a ground probe disposed in the ground cavity. The ground probe is configured to electrically connect to a ground conductor of the PCB and to a ground pad of the IC chip. The ground probe is further electrically connected to the conductive body.Type: ApplicationFiled: September 26, 2022Publication date: December 5, 2024Inventors: Khaled Elmadbouly, Rock Yan, Jiachun Zhou, Dexian Liu, Annie Mu
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Publication number: 20240393364Abstract: A test socket for a semiconductor integrated circuit (IC) is provided. The test socket includes a socket body configured to engage the semiconductor IC and a load board and an elastomer retainer including a top surface adjacent to the socket body and configured to face the semiconductor IC, and a bottom surface configured to face a load board. The elastomer retainer defines a slot extending from the top surface to the bottom surface. The test socket further includes a rotational contact positioned in the slot. The rotational contact is configured to move between a free state, a pre-load state, and a loaded state. The elastomer retainer is configured to compress under a pre-load force from the rotational contact when moving from the free state to the pre-load state, and compress under a loading force from the rotational contact when moving from the pre-load state to the loaded state.Type: ApplicationFiled: September 26, 2022Publication date: November 28, 2024Inventors: Jiachun Zhou, Justin Bahaj, Siang Soh, Xiaofei Ji
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Publication number: 20240377433Abstract: A contact probe includes a shell having a first end and an opposed second end. The shell defines an interior chamber therein and a longitudinal axis extending through the first end and the second end. The contact probe further includes a plunger partially received within the interior chamber and extending longitudinally outward of the first end. The plunger includes a tip for electrically connecting the contact probe to an external chip. The contact probe further includes a stepped collar coupled to the shell. The stepped collar includes a first step and a second step. The second step extends about the shell and the first step extends around the plunger longitudinally between the second step and the tip.Type: ApplicationFiled: September 26, 2022Publication date: November 14, 2024Inventors: Jiachun Zhou, Zhe Yang
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Publication number: 20240329080Abstract: A test socket is provided. The test socket includes a conductive body having a first surface configured to face a printed circuit board (PCB) and a second surface configured to face an integrated circuit (IC) chip. The conductive body defines a signal cavity and a ground cavity that extend from the first surface to the second surface. The test socket further includes a signal probe disposed in the signal cavity. The signal probe is configured to electrically connect to a signal conductor of the PCB and to a signal pad of the IC chip. The test socket further includes a ground probe disposed in the ground cavity. The ground probe is configured to electrically connect to a ground conductor of the PCB and to a ground pad of the IC chip. The conductive body is configured to be electrically connected to the ground conductor of the PCB.Type: ApplicationFiled: July 12, 2022Publication date: October 3, 2024Inventors: Khaled Elmadbouly, Jiachun Zhou
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Publication number: 20240142513Abstract: A test socket for an IC chip includes a retainer positioned adjacent a load board, the retainer defining a plurality of apertures corresponding to contact pads on the load board; a plurality of contacts disposed in the plurality of apertures, the plurality of contacts configured to electrically couple the IC chip to the contact pads; a housing defining a chamber in fluid communication with an inlet, a liquid outlet, and a vapor outlet. The housing includes a body structure defining a plurality of cavities corresponding to the plurality of apertures and configured to receive the plurality of contacts therein, and a guide structure configured to receive the IC chip and position the IC chip in the chamber when engaged with the plurality of contacts. The chamber receives a two phase fluid coolant via the inlet to at least partially submerges the plurality of contacts in the two phase fluid coolant.Type: ApplicationFiled: January 5, 2024Publication date: May 2, 2024Inventors: Jiachun Zhou, Dexian Liu, Quynh Ngoc Nguyen, Qihai Liang
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Publication number: 20230143660Abstract: A test socket for an IC includes a socket body, a rotational contact, and an elastomer retainer. The socket body includes a top surface that faces the IC, and a bottom surface that faces a load board. The socket body defines a slot extending from the top surface to an aperture in the bottom surface. The rotational contact is positioned in the slot. The elastomer retainer captures the rotational contact in the socket body and includes a round section about which the rotational contact rotates. The elastomer retainer compresses under translatory force from the rotational contact when translating from the free state to the pre-load state upon engagement with the load board, and compresses under rotational force from the rotational contact when rotating from the pre-load state to the loaded state upon engagement with the IC.Type: ApplicationFiled: April 6, 2021Publication date: May 11, 2023Inventors: Peter Ursu, Jiachun Zhou, Siang Soh, Justin Bahaj
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Publication number: 20230099805Abstract: A test socket for an IC chip includes a retainer positioned adjacent a load board, the retainer defining a plurality of apertures corresponding to contact pads on the load board; a plurality of contacts disposed in the plurality of apertures, the plurality of contacts configured to electrically couple the IC chip to the contact pads; a housing defining a chamber in fluid communication with an inlet, a liquid outlet, and a vapor outlet. The housing includes a body structure defining a plurality of cavities corresponding to the plurality of apertures and configured to receive the plurality of contacts therein, and a guide structure configured to receive the IC chip and position the IC chip in the chamber when engaged with the plurality of contacts. The chamber receives a two phase fluid coolant via the inlet to at least partially submerges the plurality of contacts in the two phase fluid coolant.Type: ApplicationFiled: January 7, 2022Publication date: March 30, 2023Inventors: Jiachun Zhou, Dexian Liu, Quynh Ngoc Nguyen, Qihai Liang
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Patent number: 11283206Abstract: Methods, systems, and apparatus for an electrical connector assembly for connecting an integrated circuit chip to a printed circuit board. The electrical connector assembly includes a socket body that is made of an insulating material. The socket body has a top surface, a bottom surface, and a first plurality of cavities including a first cavity and a second cavity. The first cavity and the second cavity each have an inner surface plated with a conductive material to form a metal grounding shell. The electrical connector assembly includes multiple probes including a first probe and a second probe. The first probe is configured to be positioned within the first cavity and the second probe is configured to be positioned within the second cavity. The electrical connector assembly includes one or more signal traces that electrically connect the metal grounding shells of the first cavity and the second cavity.Type: GrantFiled: March 20, 2019Date of Patent: March 22, 2022Assignee: SMITHS INTERCONNECT AMERICAS, INC.Inventors: Jiachun Zhou, Khaled Elmadbouly, Dexian Liu, Noah Weichselbaum
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Patent number: 11221348Abstract: Methods, systems, and apparatus for electrical connector assemblies. The assemblies include a socket defining a signal cavity, the socket having a first socket opening and a second socket opening. The assemblies include a signal contact probe located within the signal cavity. The signal contact probe includes a first plunger received in the shell cavity and extending through a first shell opening and located in the first socket opening. The signal contact probe includes a second plunger received in the shell cavity and extending through a second shell opening and located in the second socket opening. The assemblies include an end insulation ring located in the second socket opening and around the second plunger, the end insulation ring configured to facilitate substantially constant impedance through the signal spring probe, and configured to restrict lateral movement of the second plunger within the second socket opening.Type: GrantFiled: May 29, 2018Date of Patent: January 11, 2022Assignee: SMITHS INTERCONNECT AMERICAS, INC.Inventors: Jiachun Zhou, Dexian Liu, Kevin Deford, Jim Spooner, Bo Shi
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Publication number: 20210005992Abstract: Methods, systems, and apparatus for an electrical connector assembly for connecting an integrated circuit chip to a printed circuit board. The electrical connector assembly includes a socket body that is made of an insulating material. The socket body has a top surface, a bottom surface, and a first plurality of cavities including a first cavity and a second cavity. The first cavity and the second cavity each have an inner surface plated with a conductive material to form a metal grounding shell. The electrical connector assembly includes multiple probes including a first probe and a second probe. The first probe is configured to be positioned within the first cavity and the second probe is configured to be positioned within the second cavity. The electrical connector assembly includes one or more signal traces that electrically connect the metal grounding shells of the first cavity and the second cavity.Type: ApplicationFiled: March 20, 2019Publication date: January 7, 2021Inventors: Jiachun Zhou, Khaled Elmadbouly, Dexian Liu, Noah Weichselbaum
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Publication number: 20200088763Abstract: Methods, systems, and apparatus for electrical connector assemblies. The assemblies include a socket defining a signal cavity, the socket having a first socket opening and a second socket opening. The assemblies include a signal contact probe located within the signal cavity. The signal contact probe includes a first plunger received in the shell cavity and extending through a first shell opening and located in the first socket opening. The signal contact probe includes a second plunger received in the shell cavity and extending through a second shell opening and located in the second socket opening. The assemblies include an end insulation ring located in the second socket opening and around the second plunger, the end insulation ring configured to facilitate substantially constant impedance through the signal spring probe, and configured to restrict lateral movement of the second plunger within the second socket opening.Type: ApplicationFiled: May 29, 2018Publication date: March 19, 2020Inventors: Jiachun Zhou, Dexian Liu, Kevin Deford, Jim Spooner, Bo Shi
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Patent number: 8808010Abstract: A socket for use in a test system is provided, where the test system is configured to align at least a portion of an electronic device with a plurality of aligned connectors. The socket can include a metal structure having a plurality of openings, the plurality of openings spaced to accommodate the plurality of aligned connectors. At least one opening in the plurality of openings can extend through a thickness of the metal structure and can have an annular inner surface. The annular inner surface can be proximal to at least a portion of a conductive outer surface of at least one aligned connector of the plurality of aligned connectors in the test system. The socket can further include an insulation layer provided on the annular inner surface.Type: GrantFiled: June 4, 2012Date of Patent: August 19, 2014Assignee: Interconnect Devices, Inc.Inventors: Jiachun Zhou, Dexian Liu, Siang Soh, Brian Hahn, Bizhao Li
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Patent number: 8758066Abstract: A contact probe and method of forming the same are provided, where the contact probe can include a shell including a body having a shell cavity. The contact probe can also include at least one plunger slidably received in the shell cavity and extending through at least one opening in at least one end of the shell. The contact probe can further include a biasing device configured to exert a biasing force on the at least one plunger and at least one insulation member including an insulative material. The at least one insulation member can be disposed on at least a portion of an outer surface of at least one of: the shell and the at least one plunger.Type: GrantFiled: February 3, 2012Date of Patent: June 24, 2014Assignee: Interconnect Devices, Inc.Inventors: Jiachun Zhou, Caiyun Yang
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Patent number: 8506307Abstract: An electrical connector and method of forming the same are provided, where the method can include affixing at least one layer to a core such that the layer is isomorphic to at least a portion of on an external surface of the core, press fitting the core with the layer into a socket cavity in a socket body, and removing the core from the socket cavity while leaving at least a portion of the layer so that the layer forms a shell layer affixed to an internal surface of the socket cavity. The method can further include inserting at least one plunger and a biasing device into a shell cavity so that a tail of the plunger is slidably received in the shell cavity and the biasing device biases a tip of the plunger away from an internal surface of the shell cavity.Type: GrantFiled: December 2, 2010Date of Patent: August 13, 2013Assignee: Interconnect Devices, Inc.Inventors: David Henry, Jiachun Zhou, Kanapathipillai Prabakaran, Yingdong Ji
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Publication number: 20130203298Abstract: A contact probe and method of forming the same are provided, where the contact probe can include a shell including a body having a shell cavity. The contact probe can also include at least one plunger slidably received in the shell cavity and extending through at least one opening in at least one end of the shell. The contact probe can further include a biasing device configured to exert a biasing force on the at least one plunger and at least one insulation member including an insulative material. The at least one insulation member can be disposed on at least a portion of an outer surface of at least one of: the shell and the at least one plunger.Type: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Inventors: Jiachun Zhou, Caiyun Yang
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Publication number: 20120315775Abstract: A socket for use in a test system is provided, where the test system is configured to align at least a portion of an electronic device with a plurality of aligned connectors. The socket can include a metal structure having a plurality of openings, the plurality of openings spaced to accommodate the plurality of aligned connectors. At least one opening in the plurality of openings can extend through a thickness of the metal structure and can have an annular inner surface. The annular inner surface can be proximal to at least a portion of a conductive outer surface of at least one aligned connector of the plurality of aligned connectors in the test system. The socket can further include an insulation layer provided on the annular inner surface.Type: ApplicationFiled: June 4, 2012Publication date: December 13, 2012Inventors: Jiachun Zhou, Dexian Liu, Siang Soh, Brian Hahn, Bizhao Li
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Publication number: 20120142229Abstract: An electrical connector and method of forming the same are provided, where the method can include affixing at least one layer to a core such that the layer is isomorphic to at least a portion of on an external surface of the core, press fitting the core with the layer into a socket cavity in a socket body, and removing the core from the socket cavity while leaving at least a portion of the layer so that the layer forms a shell layer affixed to an internal surface of the socket cavity. The method can further include inserting at least one plunger and a biasing device into a shell cavity so that a tail of the plunger is slidably received in the shell cavity and the biasing device biases a tip of the plunger away from an internal surface of the shell cavity.Type: ApplicationFiled: December 2, 2010Publication date: June 7, 2012Inventors: David Henry, Jiachun Zhou, Kanapathipillai Prabakaran, Yingdong Ji
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Publication number: 20090261851Abstract: According to some example embodiments, an interconnect has a crown with contact tips, in which each of the contact tips is structured to physically contact a substantially spherical solder ball along a curved inner surface of the contact tip.Type: ApplicationFiled: April 18, 2008Publication date: October 22, 2009Applicant: ANTARES ADVANCED TEST TECHNOLOGIES, INC.Inventors: Jiachun Zhou, Praveen Matlapudi
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Publication number: 20050174136Abstract: A probe apparatus for preferably testing packaged circuit chips combines an ACE with plunger pins placed in between the ACE and the test contact. A plunger pin provides a contact end for contacting the test contacts and a back end configured for indenting the ACE. The contact end may be configured in conjunction with the test contacts particularities whereas the plunger pins' back ends have a curvature that corresponds to the ACE's deformation behavior in the impinging vicinity such wear relevant ACE deformations are kept to a minimum. The plunger pins are arrayed in a removable frame. For contacting ball grid arrays, the plunger pins feature on their front ends self centering interacting concentrically arrayed crown peaks.Type: ApplicationFiled: February 9, 2004Publication date: August 11, 2005Inventors: Jiachun Zhou, January Kister