US 12,442,997 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. 19/170,416.
Application 19/170,416 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.
Application 19/170,416 is a continuation of application No. 19/070,348, filed on Mar. 4, 2025.
Application 19/070,348 is a continuation of application No. 17/903,455, filed on Sep. 6, 2022, granted, now 12,271,595, issued on Apr. 8, 2025.
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 2025/0231430 A1, Jul. 17, 2025
Int. Cl. G01K 7/14 (2006.01); G01K 7/02 (2021.01); G02F 1/01 (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)] 20 Claims
OG exemplary drawing
 
1. A package, comprising:
a package substrate;
a bridging element disposed in the package substrate, the bridging element providing an optical bridge among a plurality of dies;
one or more analog/mixed signal (AMS) blocks coupled to the bridging element, the one or more AMS blocks configured for implementing data serialization and deserialization interfaces between the dies and the bridging element;
a photonic network, disposed in the bridging element, comprising a plurality of photonic paths;
a first photonic transceiver disposed in the bridging element, the first photonic transceiver optically coupled to the photonic network and electrically coupled, via a first set of one or more electrical interconnects, to the one or more AMS blocks;
a second photonic transceiver disposed in the bridging element, the second photonic transceiver optically coupled to the photonic network and electrically coupled, via a second set of one or more electrical interconnects, to the one or more AMS blocks;
an optical input disposed in the bridging element, the optical input providing an optical connection to light from an external device; and
a splitter disposed in the bridging element, the splitter coupled to the optical input via the photonic network and further coupled to the first and the second photonic transceivers via the photonic network, and wherein the splitter is configured for distributing the light over different photonic paths in the photonic network, wherein
the one or more AMS blocks are aligned with the bridging element such that each of the one or more electrical interconnects in the first and second sets of the electrical interconnects is less than 2 mm in length.