Results 131 to 140 of about 3,577 (181)
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Laser micromachining of goldblack coatings
Applied Optics, 2006Goldblack deposits have been used as high-absorption coatings for thermal infrared detectors for a number of years, principally on large single, or few pixel detectors. We present a new technique that allows the benefits of goldblack to be applied to the current generation of small pixel silicon micromachined thermal infrared detectors.
N, Nelms, J, Dowson, N, Rizvi, T, Rohr
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Medical device technology, 2003
Laser micromachining can be the key to further miniaturisation of devices. This article describes the different techniques for precision removal of material.
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Laser micromachining can be the key to further miniaturisation of devices. This article describes the different techniques for precision removal of material.
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Advanced Materials for Optics and Electronics, 1993
AbstractThe machining of several materials such as polymers, metals and ceramics using excimer lasers (193, 248 and 308 nm) was investigated. By photoablation, micrometer resolution can be achieved for polymers if the wavelength and fluence are chosen properly. High‐definition processing of metals is complicated by the occurrence of surface melting. An
J. Ihlemann +2 more
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AbstractThe machining of several materials such as polymers, metals and ceramics using excimer lasers (193, 248 and 308 nm) was investigated. By photoablation, micrometer resolution can be achieved for polymers if the wavelength and fluence are chosen properly. High‐definition processing of metals is complicated by the occurrence of surface melting. An
J. Ihlemann +2 more
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Trends in laser micromachining
SPIE Proceedings, 2016Laser Micromachining is well established in industry. Depending on the application lasers with pulse length from μseconds to femtoseconds and wavelengths from 1064nm and its harmonics up to 5μm or 10.6μm are used. Ultrafast laser machining using pulses with pico or femtosecond duration pulses is gaining traction, as it offers very precise processing of
Frank Gaebler +2 more
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Micromachining with femtosecond lasers
Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178), 1998Summary form only given. Two industrial applications of ultrashort-pulse machining process will be presented in this contribution. For the automotive industry, the production of high-aspect-ratio high-quality microholes for injection nozzles is required.
S. Nolte +6 more
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Micromachining with Excimer Laser
CIRP Annals, 1998Abstract This paper deals with micromachining of different materials using a 100 W excimer laser at RTM laboratories. The first part of the works reports the results of optical simulations carried out on several layouts calculated using a sequential ray tracer in order to evaluate the aberrations and improve the performance of the optics and masks ...
G. Ricciardi +4 more
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Design and control of laser micromachining workstation [PDF]
2012 12th IEEE International Workshop on Advanced Motion Control (AMC), 2012 The production process of miniature devices and microsystems requires the utilization of non-conventional micromachining techniques. In the past few decades laser micromachining has became micro-manufacturing technique of choice for many industrial and research applications.
Edin Golubovic +4 more
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Picosecond lasers in micromachining
ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication, 2003Recent improvements to mode-locked lasers with picosecond pulse duration have fueled an increased interest for industrial applications, especially micromachining. Short pulses offer advantages for ablation of various materials. Reduced thermal load, low ablation threshold and other advantages of shorter pulses need to be tested for real application.
Gediminas Račiukaitis +3 more
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Micromachining with copper lasers
SPIE Proceedings, 1997In recent years the copper laser has undergone extensive development and has emerged as a leading and unique laser for micromachining. The copper laser is a high average power (10 - 250 W), high pulse repetition rate (2 - 32 kHz), visible laser (511 nm and 578 nm) that produces high peak power (typically 200 kW), short pulses (30 ns) and very good beam
Martyn R. H. Knowles +5 more
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Laser applications for micromachining
AIP Conference Proceedings, 1996Laser assisted silicon etching was developed for packaged microsensors. Laser assisted Cr CVD was applied for selective metallization on nonplaner surfaces. High rate laser CVD using low temperature condensation method was developed for micro assembly and projection patterning.
Masayoshi Esashi, Kazuyuki Minami
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