Results 171 to 180 of about 1,156,431 (219)
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Laser soldering using lead free solder
PICALO 2004: 1st Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication, 2004In recent years the drive to adopt environmentally friendly solders and fluxes has been at the forefront of the electronics industry concerns. In parallel, the demands on soldering technology have increased rapidly, with footprint sizes reducing and boards becoming more heavily populated, in the drive towards miniaturisation. With these changes some of
Simon Doe, Alan Mundy
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Photothermal effects of laser tissue soldering
Physics in Medicine and Biology, 1999Low-strength anastomoses and thermal damage of tissue are major concerns in laser tissue welding techniques where laser energy is used to induce thermal changes in the molecular structure of the tissues being joined, hence allowing them to bond together.
K M, McNally +4 more
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A New Dispensing Solder Paste for Laser Soldering Technology
Soldering and Reliability Conferences, 2016ABSTRACT Laser soldering method becomes attractive in the packaging and assembly of surface-mounted devices and microelectronics. The method transfers laser energy for reflow process with a non-contact procedure and determines the soldering location precisely.
Hsiang-Chuan Chen +4 more
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Terahertz three-dimensional monitoring of nanoparticle-assisted laser tissue soldering
Biomedical Optics Express, 2020 In view of minimally-invasive clinical interventions, laser tissue soldering assisted by plasmonic nanoparticles is emerging as an appealing concept in surgical medicine, holding the promise of surgeries without sutures.
Lucas V. Besteiro +2 more
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Optimal solder and power density for diode laser tissue soldering (LTS)
Lasers in Surgery and Medicine, 2001AbstractBackground and ObjectiveLaser tissue soldering (LTS) using albumin and indocyanine green dye (ICG) is an effective technique utilized in various reconstructive surgical procedures. The purpose of this study was to describe in vivo and in vitro temperature profiles of an albumin‐based solder while varying ICG concentration and laser power ...
C S, Cooper +3 more
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Absorption Behaviour of Solder Pastes in Laser Soldering
1994The aim of these investigations is to examine various solder pastes for their absorption behaviour with respect to laser beam of wavelength of 1.06 μm. It is intended to varify the importance of absorption of flux over metallic composition and reactivity of flux.
Christoph Hamann +3 more
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2014 International Conference on Electronics Packaging (ICEP), 2014
Recently, a high accuracy soldering method is required. Then, laser soldering has attracted attention. In laser soldering, it is difficult to detect an optimal laser condition depending on production conditions, because the amount of heat transfer from solder through copper wiring is different in circuit boards and soldering positions.
Dai Imai +4 more
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Recently, a high accuracy soldering method is required. Then, laser soldering has attracted attention. In laser soldering, it is difficult to detect an optimal laser condition depending on production conditions, because the amount of heat transfer from solder through copper wiring is different in circuit boards and soldering positions.
Dai Imai +4 more
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Development of high speed laser soldering process for lead-free solder with diode-laser
SPIE Proceedings, 2003The compactness of electronic equipments is leading the narrow pitch assembly of components on board or film by soldering. Diode-laser soldering system had already been realized as a high-density assembly process; however, the soldering quality became unstable when the system targeted to achieve short time, such as sub second, soldering, i.e.
Jing-bo Wang +7 more
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1993
Abstract Laser soldering uses a well-focused, highly controlled beam to deliver energy to a desired location for a precisely measured length of time. This article focuses on two types of laser soldering operations, namely, blind laser soldering and intelligent laser soldering.
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Abstract Laser soldering uses a well-focused, highly controlled beam to deliver energy to a desired location for a precisely measured length of time. This article focuses on two types of laser soldering operations, namely, blind laser soldering and intelligent laser soldering.
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Laser soldering of articular cartilage
SPIE Proceedings, 2001The surgical treatment of full thickness cartilage defects in the knee joint remains a therapeutic challenge. Recently, new techniques for articular cartilage transplantation, such as mosaicplasty, have become available for cartilage repair. The long-term success of these techniques, however, depends not only on the chondrocyte viability, but also on a
Benno J. Zueger +6 more
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