Laser Direct Writing (LDW) are used in the manufacture of electronic circuits, pads, and paths sub millimeter scale. They can also be sensors systems. Ablative laser writing a thin functional layer material deposited on dielectric substrate is one LDW methods. Nowadays conductive layers composed from graphene paint or nanosilver paint, indium tin oxide (ITO), AgHT^TM containing carbon nanotubes. Creating conducting structures transparent (ITO, AgHT nanotubes layers) may have...

In the face of global challenges related to climate change and sustainable development, comparing attitudes infrastructure in field electromobility renewable energy sources different countries becomes crucial. The question differences similarities between Poland Germany these areas sheds light on unique opportunities that two present each other. aim study is understand dynamics, which can contribute shaping more effective policies strategies for green mobility. This was conducted through a...

Purpose Passive conducting elements are the important parts of textronic systems. This paper aims to study a possibility creating well-conducting and durable in textile materials by combining two technologies – physical vapour deposition (PVD) laser patterning. Design/methodology/approach Thin metallic layers on common fabrics do not provide satisfactory resistance bending stretching; therefore, selected composite have been proposed as substrate. The were produced stage process thin layer...

This paper describes a method of laser ablation for improving the hydrophobic properties vulcanized rubber. The treatment was tested on acrylonitrile rubber (NBR) and styrene butadiene (SBR) containing carbon nanotubes soot as fillers. surface layer vulcanizates modified using nanosecond-pulsed at 1060 nm wavelength. parameters process were congruent, so no chemical changes in polymeric material observed. Evaluation condition laser-textured samples performed Leica MZ6 stereoscopic...

The article presents selected laser technologies designed to increase the reliability of some electrical and electronic components. They include technology connecting, surface modification or precise shaping. technique welding as more reliable joining than traditional thermo-compression ultra-compression has been described. Our method thin wires in power semiconductor devices stranded introduced. paper also describes soldering, which causes creation thinner intermetallic phases owing a...

The main aim of this paper is to analyze the influence laser shaping photovoltaic cell based on its efficiency. authors described both process monocrystalline manufacturing, efficiency, and possibilities usage in architecture creating cells unconventional shapes by using technology. A method for cutting a fiber was presented as well parameters process. allows massively produced silicon according predetermined trajectory. Using proposed parameters, satisfactory edge quality, negligible impact...

In the paper results of micromachining 3D microstructures microsystems made from silicon and alumina ceramic using a single mode fiber laser (1064 nm) are presented. The quality obtained structures its smallest dimensions with acceptable maintained were examined. influence variable parameters processing changing mapping scale on geometrical features was identified.

The article presents significant results in research on creating superhydrophobic properties of materials which can be used as an interesting material for use self-cleaning polymer protective gloves and similar applications where the superhydrophobicity plays a role. In this work influence laser surface modification MVQ silicone rubber was investigated. conducted using nanosecond-pulsed at 1060 nm wavelength. After process ablation, condition examined SEM microscope infrared spectroscopy....

Set of different physical processes has crucial influence on the required precision in case shaping elements with dimensions less than tenths millimeter by means a laser beam, both terms 3D geometry and structure material micro-volume. Many issues field micrometer scale materials can be solved used practice modeling processes. This article presents some selected examples accomplished microtechnologies, using beam nanosecond pulses fiber laser, successfully supported computer modeling. Using...

For physical vapor deposition (PVD) technology, cleaning a substrate is one of the key preliminary processes before depositing metal layer. In this article, we present results research on modification textile composite using laser technology and its influence surface resistance silver structures intended for use in wearable electronics. As result modification, layers increased as compared with produced an unmodified substrate. An experimental planning technique was used to optimize process.

Abstract Mechanical durability is one of the main obstacles flexible organic electronic devices. In this work, fatigue behavior field‐effect transistors based on a diketopyrrolo‐pyrrole‐dithienylthieno[3,2‐b]thiophene polymer reported. An especially for that purpose designed bending setup allows to perform precise multiple deformation cycles transistor channel area while monitoring device behavior. The show high operational stability upon 100 at radius 500 µm. Bending smaller µm leaves...

In the paper authors describe research on thin-film surface heat sources created flexible textile substrate. The novelty of is included in using two technologies: physical vapour deposition and laser ablation. Two structures form meander clover were implemented Comsol Multihysics package to ablation optimization modeling structure heating. Experiments fully confirmed results modeling.

This article presents some results of laser processing materials, used for the construction microsystems and micro-sensors, e.g. Si, Al 2 O 3 zirconia ceramics. The necessity faithful reproducing geometry dimensions in micro-scale puts specific requirements machining process. Laser micro-technologies must be conducted under conditions which ensure perfect guidance a well-focused beam, scanning at suitable speed, pulse duration with proper repetition frequency. amount absorbed energy depends...

The analysis of thermal and electrical properties laser patterned ITO (Indium Tin Oxide) structures on polymer substrate have been presented in this paper. We used layers to produce the coupled microheater sensor, which are closed one microsystem. proposed structure heating system can be wide research area, especially biology medicine. heater sensor enable development an accurate systems with possibility temperature controlling.

This article presents an ablative method of cutting masks from ultra-thin metal foils using nanosecond laser pulses. As a source radiation, pulsed fiber with wavelength 1062 nm the duration pulses 15 to 220 nanoseconds (ns), was used in research. The were made stainless-steel foil thicknesses 30 µm, 35 and 120 µm. Channels different lengths 50 300 µm tested. possibilities limitations presented are described. optimization process parameters performed experiment planning techniques. A static,...

The aim of the study was to evaluate effects laser texturing coated textile materials on their cut resistance. investigated material an aramid knitted fabric with a polymer layer made acrylic-styrene dispersion functionalized particles silicon carbide (SiC). distribution SiC in coating microstructure assessed basis microscopic observations (scanning electron microscopy). textured, and then resistance assembly determined using rectangular blade. findings showed that improved tested materials,...

Applying of laser alloying for modification electrical resistivity metals with significant importance in and electronic engineering utilization this method producing passive elements electric circuit have been presented. The alloyed were obtained by means beams different wave length various mode working (cw or pulse), methods the supplying elements. It was possible to form layers forming types metallurgical systems: full (<b><i>Cu-Au</i></b>, <b><i>Cu-Ni</i></b>) partial solubility...

A novel method for the determination of average shear rate around a microparticle moving in fluid is presented. Although particle parameter paramount importance sedimentation studies, its time-consuming, thus model-based solutions are preferred. However, current literature models require still rigorous validation. The presented technique relies on optical tracking laser-tweezers trapped suspended liquid medium. obtained experimental results spherical particles 1 micron diameter show good...

The aim of this study was to investigate the usefulness laser welding technology for realization wire connections: semiconductor structure-outer leading in power devices. Laser can be alternative traditional ultrasonic method bonding, applied devices (for example IGBT transistors). bondings made by have adhesive nature and therefore are more susceptible damage than welded joints.A beam a wavelength 1.06 μm new leads joining. Nickel used as material an intermediate plate (Molybdenum) between...