US 12,442,998 B2
Optically bridged multicomponent package with extended temperature range
Philip Winterbottom, San Jose, CA (US); David Lazovsky, Los Gatos, CA (US); Ankur Aggarwal, Pleasanton, CA (US); Martinus Bos, San Jose, CA (US); and Subal Sahni, La Jolla, CA (US)
Assigned to Celestial AI, Inc., Santa Clara, CA (US)
Filed by Celestial AI Inc., Santa Clara, CA (US)
Filed on Apr. 4, 2025, as Appl. No. 19/170,429.
Application 19/170,429 is a division of application No. 18/742,028, filed on Jun. 13, 2024, granted, now 12,298,608.
Application 18/742,028 is a division of application No. 18/243,474, filed on Sep. 7, 2023, granted, now 12,124,095, issued on Oct. 22, 2024.
Application 18/243,474 is a continuation of application No. 18/123,083, filed on Mar. 17, 2023, granted, now 11,835,777, issued on Dec. 5, 2023.
Claims priority of provisional application 63/448,585, filed on Feb. 27, 2023.
Claims priority of provisional application 63/420,330, filed on Oct. 28, 2022.
Claims priority of provisional application 63/321,453, filed on Mar. 18, 2022.
Prior Publication US 2025/0231431 A1, Jul. 17, 2025
Int. Cl. G02F 1/01 (2006.01); G01K 7/02 (2021.01); G01K 7/14 (2006.01)
CPC G02F 1/0123 (2013.01) [G01K 7/023 (2013.01); G01K 7/028 (2013.01); G01K 7/14 (2013.01); G02F 1/0113 (2021.01)] 22 Claims
OG exemplary drawing
 
1. A bridging apparatus for optically joining a first die and a second die, comprising:
a bridge; and
one or more analog/mixed signal (AMS) blocks disposed on the bridge, the one or more AMS blocks each including a respective serializer and deserializer for implementing data serialization and deserialization interfaces between the bridge and the first and second dies to be joined by the bridge, wherein corresponding AMS blocks are respectively connectable to each of the first and second dies to be joined by the bridge using electrical interfaces supporting a communication protocol;
the bridge comprising:
a photonic network comprising a photonic path;
a waveguide, the waveguide being part of the photonic path in the photonic network;
a modulator, the modulator being optically coupled to the photonic path and electrically coupled to a corresponding AMS block;
a photodetector, the photodetector being optically coupled to the photonic path and electrically coupled to a corresponding AMS block;
wherein the bridging apparatus provides a photonic channel for connecting the first and second dies to be joined by the bridge, the photonic channel comprising a serializer, the modulator, the photonic path, the photodetector, and a deserializer, wherein the photonic channel is part of a data communication path provided for the first and second dies.