Invention Grant
- Patent Title: Optical bridging element for separately stacked electrical ICs
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Application No.: US18610502Application Date: 2024-03-20
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Publication No.: US12216318B2Publication Date: 2025-02-04
- Inventor: Philip Winterbottom , David Lazovsky , Ankur Aggarwal , Martinus Bos , Subal Sahni
- Applicant: Celestial AI Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Celestial AI Inc.
- Current Assignee: Celestial AI Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Stevens & Lee PC
- Agent John Maldjian, Esq.
- Main IPC: G02B6/42
- IPC: G02B6/42 ; G02B6/43 ; G02F1/015

Abstract:
A package includes a first die with a bridging element with a first interconnect region, a first photonic transceiver portion, a second interconnect region, a first photonic path to an optical interface (OI), and a second photonic path from the OI to the first photonic transceiver portion. The first interconnect region electrically couples the first photonic transceiver portion to a second photonic transceiver portion in an analog/mixed-signal die (AMS die), while the second interconnect region connects a third photonic transceiver portion in a general die to the second photonic transceiver portion using an electrical coupling embedded in the first die. The electrical interconnects in the first interconnect region are less than two millimeters in length.
Public/Granted literature
- US20240219664A1 OPTICAL BRIDGING ELEMENT FOR SEPARATELY STACKED ELECTRICAL ICS Public/Granted day:2024-07-04
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