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公开(公告)号:US20230154816A1
公开(公告)日:2023-05-18
申请号:US18055798
申请日:2022-11-15
Inventor: Belgacem Haba , Christopher Aubuchon
CPC classification number: H01L23/36 , H01L24/32 , H01L24/08 , H01L2224/32221 , H01L2224/08145
Abstract: The disclosed technology relates to microelectronic devices that can dissipate heat efficiently. In some aspects, such a microelectronic device includes a first semiconductor element and at least one second semiconductor element disposed on the first semiconductor element. Such a microelectronic device may further include a thermal block disposed on the first semiconductor element and adjacent to the at least one second semiconductor element. The thermal block may include a conductive thermal pathway to transfer heat from the first semiconductor element to a heat sink disposed on the thermal block. In some embodiments, a coefficient of thermal expansion (CTE) of the thermal block is less than 10 μm/m° C. In some embodiments, a thermal conductivity of the thermal block is higher than 150 Wm-1K-1. at room temperature.
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公开(公告)号:US20230132632A1
公开(公告)日:2023-05-04
申请号:US18050307
申请日:2022-10-27
Inventor: Rajesh Katkar , Cyprian Emeka Uzoh
IPC: H01L23/00
Abstract: An element that is configured to bond to another element to define a bonded structure is disclosed. The element can include a dielectric bonding layer having a cavity that extends at least partially through a thickness of the dielectric bonding layer from a surface of the dielectric bonding layer. The element can also include a conductive feature that is at least partially disposed in the cavity. The conductive feature has a contact surface. The element can include a diffusion barrier layer between the conductive feature and a portion of the dielectric bonding layer. The barrier layer includes a barrier metal. The barrier metal of the diffusion barrier layer has an oxidation propensity that is greater than an oxidation propensity of the conductive feature.
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公开(公告)号:US11631586B2
公开(公告)日:2023-04-18
申请号:US16914169
申请日:2020-06-26
Inventor: Paul M. Enquist , Gaius Gillman Fountain
IPC: H01L21/20 , H01L23/498 , H01L21/768 , H01L25/00 , H01L49/02 , H01L27/06 , H01L21/683 , H01L23/00 , H01L25/065
Abstract: A method of integrating a first substrate having a first surface with a first insulating material and a first contact structure with a second substrate having a second surface with a second insulating material and a second contact structure. The first insulating material is directly bonded to the second insulating material. A portion of the first substrate is removed to leave a remaining portion. A third substrate having a coefficient of thermal expansion (CTE) substantially the same as a CTE of the first substrate is bonded to the remaining portion. The bonded substrates are heated to facilitate electrical contact between the first and second contact structures. The third substrate is removed after heating to provided a bonded structure with reliable electrical contacts.
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公开(公告)号:US20230100032A1
公开(公告)日:2023-03-30
申请号:US17934514
申请日:2022-09-22
Inventor: Belgacem Haba , Laura Wills Mirkarimi
IPC: H01L23/538 , H01L23/48 , H01L23/00 , H01L25/065
Abstract: A bonded structure is disclosed. The bonded structure can comprise a first semiconductor element having a first contact pad. An interposer can include a second contact pad on a first side of the interposer and a third contact pad and a fourth contact pad on a second side of the interposer opposite the first side, the second contact pad bonded to the first contact pad; a second semiconductor element having a fifth contact pad bonded to the third contact pad and a sixth contact pad bonded to the fourth contact pad. A switching circuitry can be configured to switch between a first electrical connection between the second and third contact pads and a second electrical connection between the second and fourth contact pads.
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公开(公告)号:US11610846B2
公开(公告)日:2023-03-21
申请号:US16844932
申请日:2020-04-09
Inventor: Belgacem Haba , Javier A. DeLaCruz , Rajesh Katkar , Arkalgud Sitaram
IPC: H01L23/552 , H01L23/00
Abstract: A bonded structure is disclosed. The bonded structure can include a semiconductor element comprising active circuitry and a first bonding layer. The bonded structure can include a protective element directly bonded to the semiconductor element without an adhesive along a bonding interface. The protective element can include an obstructive material disposed over the active circuitry and a second bonding layer on the obstructive material. The second bonding layer can be directly bonded to the first bonding layer without an adhesive. The obstructive material can be configured to obstruct external access to the active circuitry.
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公开(公告)号:US12300661B2
公开(公告)日:2025-05-13
申请号:US18353019
申请日:2023-07-14
Inventor: Cyprian Emeka Uzoh , Pawel Mrozek
Abstract: Reliable hybrid bonded apparatuses are provided. An example process cleans nanoparticles from at least the smooth oxide top layer of a surface to be hybrid bonded after the surface has already been activated for the hybrid bonding. Conventionally, such an operation is discouraged. However, the example cleaning processes described herein increase the electrical reliability of microelectronic devices. Extraneous metal nanoparticles can enable undesirable current and signal leakage from finely spaced traces, especially at higher voltages with ultra-fine trace pitches. In the example process, the extraneous nanoparticles may be both physically removed and/or dissolved without detriment to the activated bonding surface.
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公开(公告)号:US20250151502A1
公开(公告)日:2025-05-08
申请号:US18939229
申请日:2024-11-06
Inventor: Belgacem Haba , Rajesh Katkar
IPC: H10H29/855 , H10H29/01
Abstract: A display comprises a plurality of LEDs on a substrate. Each pixel of the display comprises one or more LEDs of the plurality of LEDs and a transparent region of the display. The transparent region transmits light external to the display through the display.
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公开(公告)号:US20250125248A1
公开(公告)日:2025-04-17
申请号:US18782477
申请日:2024-07-24
Inventor: Belgacem Haba , Ilyas Mohammed , Rajesh Katkar , Gabriel Z. Guevara , Javier A. DeLaCruz , Shaowu Huang , Laura Wills Mirkarimi
IPC: H01L23/498 , H01G2/02 , H01G4/12 , H01G4/228 , H01G4/30 , H01G4/38 , H01G4/40 , H01L23/00 , H01L23/48 , H01L23/522 , H01L23/66 , H05K1/02 , H05K1/18
Abstract: In various embodiments, a bonded structure is disclosed. The bonded structure can include an element and a passive electronic component having a first surface bonded to the element and a second surface opposite the first surface. The passive electronic component can comprise a first anode terminal bonded to a corresponding second anode terminal of the element and a first cathode terminal bonded to a corresponding second cathode terminal of the element. The first anode terminal and the first cathode terminal can be disposed on the first surface of the passive electronic component.
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99.
公开(公告)号:US12271032B2
公开(公告)日:2025-04-08
申请号:US18508556
申请日:2023-11-14
Inventor: Shaowu Huang , Javier A. Delacruz , Liang Wang , Guilian Gao
Abstract: Integrated optical waveguides, direct-bonded waveguide interface joints, optical routing and interconnects are provided. An example optical interconnect joins first and second optical conduits. A first direct oxide bond at room temperature joins outer claddings of the two optical conduits and a second direct bond joins the inner light-transmitting cores of the two conduits at an annealing temperature. The two low-temperature bonds allow photonics to coexist in an integrated circuit or microelectronics package without conventional high-temperatures detrimental to microelectronics. Direct-bonded square, rectangular, polygonal, and noncircular optical interfaces provide better matching with rectangular waveguides and better performance. Direct oxide-bonding processes can be applied to create running waveguides, photonic wires, and optical routing in an integrated circuit package or in chip-to-chip optical communications without need for conventional optical couplers. An example wafer-level process fabricates running waveguides, optical routing, and direct-bonded optical interconnects for silicon photonics and optoelectronics packages when two wafers are joined.
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公开(公告)号:US20250113646A1
公开(公告)日:2025-04-03
申请号:US18532318
申请日:2023-12-07
Inventor: Rajesh Katkar , Belgacem Haba , Cyprian Emeka Uzoh
IPC: H01L31/0352 , H01L27/146 , H01L31/0224
Abstract: Conductive features of a device including quantum dots of a first substrate are bonded to conductive features of a second substrate. A quantum dot layer is formed on the first substrate having conductive features in a dielectric layer. Hybrid bonding of the first substrate to the second substrate is performed without use of an intervening adhesive to connect the first conductive features and the second conductive features.
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