Individualized FAC on bottom tab subassemblies to minimize adhesive gap between emitter and optics

Sauer, Sebastian; Müller, Tobias; Haag, Sebastian; Beleke, Andreas; Zontar, Daniel; Baum, Christoph; Brecher, Christian

doi:10.1117/12.2253592

Cited by 2 publications

(3 citation statements)

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“…This procedure is very important for precision optical devices, since some negative effects are not preventable (e.g. adhesive shrinking) [12,13]. Thus, a Digital Twin for precision optics assembly should aggregate the data from measurements on different steps of the production chain with the properties of the applied components such as laser, FAC lens and be available to provide the users relevant information to adapt their next production steps according to the actual status of the optics.…”

Section: Use-case Laser Diode Fast-axis Collimation Optic Assemblymentioning

confidence: 99%

Evaluation of Industry 4.0 Data formats for Digital Twin of Optical Components

Schmetz

Lee

Hoeren

et al. 2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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A wide range of software and hardware components are present in today's production systems and plants using a variety of interfaces and data formats for information exchange on different levels of the system. To increase the traceability, the lifecycle management and providing a single point of source of component-specific data, the Digital Twin technology is proposed, linking different data sets tailored to the requirements of different kind of users (e.g., machines, technicians, logistics, manufacturing execution systems). The data exchange between entities in the manufacturing network relies on machine-readable, flexible and self-describing data formats. When implementing or integrating different components into complex systems, the interoperability challenge is a major concern to address by the system designers and becomes a central task for the creation and integration of Digital Twin technology. In this paper, we evaluate different formats that are used in real environments and create a requirements framework for an ideal format for exchanging flexible and self-describing data in context of optical components manufacturing process and their special requirements.

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Section: Use-case Laser Diode Fast-axis Collimation Optic Assemblymentioning

confidence: 99%

Evaluation of Industry 4.0 Data formats for Digital Twin of Optical Components

Schmetz

Lee

Hoeren

et al. 2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

Self Cite

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“…These systems have many features of previously published systems [10]- [24]; however, these systems are more fully integrated into the overall smart-factory system. Automated micro-optic assembly systems have focused on two attachment technologies: epoxy [15]- [20] and solder [21]- [24]. The two systems [fast-axis collimation (FAC) and mirror stripe alignment] described below in detail are ultraviolet (UV) epoxybased systems.…”

Section: Introductionmentioning

confidence: 99%

“…The robot will actively align the optical element to a predefined calibrated target before it is cemented in place with a UV epoxy. As pointed out by others [15]- [20], epoxy selection is a key component to a successful process, and care must be given to select an epoxy that has minimal shrinkage and repeatable batch-to-batch viscosity. Typically, a glue gap of 50 ± 10 µm is targeted, which allows for tolerance compensation with a variable glue gap.…”

Section: Introductionmentioning

confidence: 99%

Automated UV-Epoxy-Based Micro-Optic Assembly for Kilowatt-Class Laser-Diode Arrays and Modules

Charache

Wang

Negoita

et al. 2019

IEEE Trans. Compon., Packag. Manufact. Technol.

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This paper outlines the numerous interdisciplinary activities required to implement two ultraviolet (UV) epoxy-based automated micro-optic assembly tools within a "smart factory" for high-power semiconductor laser manufacturing. After a brief overview of the motivation and approach, two examples of automated micro-optic assembly tools [e.g., fast-axis collimation (FAC) lens attach and mirror stripe alignment] for kilowattclass laser-diode arrays and modules are given that demonstrate the breadth of automation activities required within a modern factory. For each system, the complete assembly sequence is outlined, and the steps that presented fully automated challenges are highlighted. In contrast, to the previous published results that focused on the details of the automated micro-optic alignment, the largest challenges primarily involved automation and repeatability of the UV-epoxy dispense and attach processes for these high-power semiconductor devices. These were solved by precise and stable mechanical design, customized lighting, and machine vision solutions. Finally, the complete integration of the tools into a "smart-factory" system is outlined.

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Individualized FAC on bottom tab subassemblies to minimize adhesive gap between emitter and optics

Cited by 2 publications

References 0 publications

Evaluation of Industry 4.0 Data formats for Digital Twin of Optical Components

Evaluation of Industry 4.0 Data formats for Digital Twin of Optical Components

Automated UV-Epoxy-Based Micro-Optic Assembly for Kilowatt-Class Laser-Diode Arrays and Modules

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