公开(公告)号：US20250052565A1

公开(公告)日：2025-02-13

申请号：US18799507

申请日：2024-08-09

Applicant: ILLUMINA, INC.

Inventor： Shamsul Abedin ,  John Earney ,  Charles Hubert ,  Joseph Pinto ,  Arthur Pitera ,  Spencer Williams ,  Brandon Wenning ,  Clayton Braga

IPC: G01B11/27

Abstract: An example optical alignment target includes a translucent or transparent substrate having a bottom surface; an opaque material formed over the bottom surface in a pattern; an enclosed channel disposed below the bottom surface; and a fluid suspension contained in the enclosed channel. The pattern has an opaque portion of an opaque material and has a gap portion devoid of the opaque material. The fluid suspension includes a carrier liquid and a light emitting material suspended in the carrier liquid. The light emitting material is selected from the group consisting of quantum dots and cerium powder.