US 12,242,119 B2
Apparatus and method for maintaining optical ferrule alignment during thermal expansion or contraction
Michael A. Haase, St. Paul, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on Apr. 26, 2024, as Appl. No. 18/647,067.
Application 18/647,067 is a division of application No. 18/073,869, filed on Dec. 2, 2022, granted, now 12,001,066.
Application 18/073,869 is a division of application No. 17/250,172, granted, now 11,543,603, issued on Jan. 3, 2023, previously published as PCT/IB2019/055443, filed on Jun. 27, 2019.
Claims priority of provisional application 62/691,980, filed on Jun. 29, 2018.
Prior Publication US 2024/0272381 A1, Aug. 15, 2024
Int. Cl. G02B 6/42 (2006.01); G02B 6/38 (2006.01)
CPC G02B 6/4226 (2013.01) [G02B 6/3826 (2013.01); G02B 6/4214 (2013.01); G02B 6/424 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method, comprising:
bonding two or more bonding pads of a cradle to a substrate at a bonding temperature, the cradle comprising two or more mounting members that mechanically couple the respective two or more bonding pads to the cradle;
causing the cradle and substrate to reach an assembly temperature, the difference between the bonding temperature and the assembly temperature causing a deformation of the mounting members due to a difference in thermal expansion coefficients between the cradle and the substrate; and
inserting an optical ferrule into the cradle such that the cradle secures the optical ferrule relative to an optical device mounted on the substrate.