US 11,698,495 B2
Method for manufacturing fan-in fan-out device and fan-in fan-out device
Ayumi Inoue, Osaka (JP)
Assigned to SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Filed by SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Filed on May 17, 2021, as Appl. No. 17/321,844.
Claims priority of application No. 2020-086783 (JP), filed on May 18, 2020.
Prior Publication US 2021/0356675 A1, Nov. 18, 2021
Int. Cl. G02B 6/36 (2006.01); C03B 37/028 (2006.01)
CPC G02B 6/368 (2013.01) [C03B 37/028 (2013.01); G02B 6/3636 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for manufacturing a fan-in fan-out device comprising:
a first step of arranging a first holding member in a hole of a second holding member, the hole being larger than an outer diameter of the first holding member, and holding a plurality of optical fibers between the first holding member and the second holding member respectively along a plurality of grooves formed on an outer periphery of the first holding member or an inner periphery of the hole of the second holding member, the first holding member and the second holding member being of quartz glass;
a second step of heating and integrally melting the arranged first holding member, the plurality of held optical fibers, and the second holding member in a portion including an axial end portion of the second holding member; and
a third step of drawing the melted portion.