Scan system

June 10, 2009
LIMO's g2T scan system combines two optical concepts in one

LIMO's (Dortmund, Germany) innovative g2T scan system combines two different optical concepts for the first time--the transformation of Gaussian beams into homogeneous top hat profiles with a scan-method involving galvo mirrors and a specially designed f-theta objective lens.

This system is constructed for laser direct materials structuring with conventional single-mode lasers specifically at 532 nm, in particular for solar cell manufacturing.

Standard spot sizes of 50 x 50 µm2 are able to structure high-precision grooves with smooth edges in contrast to the typical sawtooth-patterns caused by Gaussian beams. Moreover, the process window is enhanced and thermal damages are reduced by the homogeneous profile.

A precise ablation of thin films is possible without damaging layers below. In comparison to Gaussian beams, the throughput can also be increased by utilization with g2T profiles due to smaller pulse-to-pulse spatial overlaps.

The scan field size amounts to 155 x 155 mm2 so that standard solar cells can be structured cost effectively in one production run with high throughput.

Sponsored Recommendations

Request a quote: Micro 3D Printed Part or microArch micro-precision 3D printers

April 11, 2024
See the results for yourself! We'll print a benchmark part so that you can assess our quality. Just send us your file and we'll get to work.

Request a free Micro 3D Printed sample part

April 11, 2024
The best way to understand the part quality we can achieve is by seeing it first-hand. Request a free 3D printed high-precision sample part.

How to Tune Servo Systems: The Basics

April 10, 2024
Learn how to tune a servo system using frequency-based tools to meet system specifications by watching our webinar!

Precision Motion Control for Sample Manipulation in Ultra-High Resolution Tomography

April 10, 2024
Learn the critical items that designers and engineers must consider when attempting to achieve reliable ultra-high resolution tomography results here!

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!