Laser-assisted deposition for electronic packaging applications

Bauer, Anton J.; Ganz, Joachim; Hesse, K.-F.; Köhler, Karen

doi:10.1016/0169-4332(90)90129-n

Cited by 31 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fundamental of selective laser sintering has been studied by Goode. 102 105 and Micheli and Boyd 106 respectively. Griffith et al 107 described the use of contact and imaging techniques to monitor the thermal signature during laser engineered net shaping.…”

Section: Laser Rapid Prototypingmentioning

confidence: 99%

Laser material processing

Majumdar

Manna

2011

International Materials Reviews

255

View full text Add to dashboard Cite

Light amplification by stimulated emission of radiation (laser) is a coherent and monochromatic source of electromagnetic radiation that can propagate in a straight line with negligible divergence. As a result, laser finds diverse applications ranging from mere mundane to most sophisticated uses either for totally commercial or purely scientific purposes, and from life saving to life threatening causes. High power lasers can produce intense heating and perform various manufacturing operations or material processing. The present contribution provides an overview of the application of high power laser only for material processing in engineering applications, and intentionally excludes the scope of application of laser in metrology, biomedical technology, spectroscopy, etc. The manufacturing processes covered have been broadly divided into four major categories, namely, laser assisted forming, joining, machining and surface engineering. Besides discussing the scope and principle of these processes, each section enumerates a detailed update of literature, scientific issues and technological innovations. At the beginning, a brief introduction to different types of lasers and their general applications, fundamentals of lasermatter interaction and classification of laser material processing has been provided. The entire discussion primarily focuses on correlating the properties with processing parameters and microstructure and composition of the material.

show abstract

Section: Laser Rapid Prototypingmentioning

confidence: 99%

Laser material processing

Majumdar

Manna

2011

International Materials Reviews

255

View full text Add to dashboard Cite

show abstract

“…Polymer metallization 280 is employed in microelectronics packaging and MCM technology, as well as in the production of decorative overlayers, diffusion barriers, and electromagnetic shielding. State-of-the-art, two-step, wet chemical metallization involves pretreatment (cleaning, activation, and prenucleation) followed by metal deposition (laser-assisted deposition, liquid-phase deposition, or vacuum deposition 281 ) . Plasma discharge and ion etching 283 and photochemical surface modification 284 (both dry processes) work well as pretreatment steps, where photochemical modification may be performed with UV lasers.…”

Section: 2 Chemical Surface Modificationmentioning

confidence: 99%

Chemical and Spectroscopic Aspects of Polymer Ablation: Special Features and Novel Directions

2003

View full text Add to dashboard Cite

“…Polymer metallization140 is one important technical process which is employed in microelectronics packaging and MCM (Multi Chip Module) technology, as well as in the production of decorative overlayers, diffusion barriers, and electromagnetic shielding. The state‐of‐the‐art wet chemical metallization of polymers involves a pretreatment, i.e., cleaning, activation, and prenucleation, followed by metal deposition by laser‐assisted processes, liquid phase deposition, or vacuum deposition 141,142. Alternative pretreatment processes are plasma discharge and ion etching143 and photochemical surface modification144 which are typically dry processes that work well as pretreatment steps.…”

Section: Discussionmentioning

confidence: 99%

Interaction of Photons with Polymers: From Surface Modification to Ablation

Lippert

2005

Plasma Processes & Polymers

138

View full text Add to dashboard Cite

Summary: This work reviews the interaction of photons with polymers with an emphasis on UV laser ablation and surface modification using VUV lamps. Laser ablation of polymers is an established process in industrial applications, but the mechanisms of ablation are still controversial. Different polymers, such as poly(methyl methacrylate), polyimides and specially designed polymers are used as examples to show that the mechanism is a mixture of photochemical and photothermal features which are closely related to the polymer structure and properties. Different approaches to probe the ablation mechanisms and to improve ablation are discussed. Photoactive groups have been introduced into the polymer structure to improve the quality of ablation and to elucidate the ablation mechanisms. The experimental techniques to probe the ablation mechanism range from time‐resolved measurements, such as shadowgraphy, ToF‐MS, and ns‐surface interferometry to variations of the irradiation wavelengths and pulse lengths. The necessity for a critical evaluation of the experimental procedures and analysis is discussed exemplary for polyimides. The data for different types of polyimides are mixed up and some experimental procedures are possibly causing problems for the data evaluation. Various recent trends for laser ablation, such as ultrafast ablation or VUV ablation are also discussed. Surface modifications of polymers using VUV photons from lamps are discussed for oxidation and nitriding of poly dimethylsiloxane (PDMS) and polyolefines. The mechanism of the PDMS surface oxidation is presented in detail.

show abstract

Laser-assisted deposition for electronic packaging applications

Cited by 31 publications

References 6 publications

Laser material processing

Laser material processing

Chemical and Spectroscopic Aspects of Polymer Ablation: Special Features and Novel Directions

Interaction of Photons with Polymers: From Surface Modification to Ablation

Contact Info

Product

Resources

About