商品簡介
Due to their flexible and efficient capabilities, lasers are often used over more traditional machining technologies, such as mechanical drilling and chemical etching, in manufacturing a wide variety of products, from medical implants, gyroscopes, and drug delivery catheters to aircraft engines, printed circuit boards, and fuel cells. Fundamentals of Laser Micromachining explains how laser technology is applied to precision micromachining. The book combines background on physics, lasers, optics, and hardware with analysis of markets, materials, and applications. It gives sufficient theoretical background for readers to understand basic concepts while including a further reading appendix for those interested in more detailed theoretical discussions.
After reviewing laser history and technology, the author compares available laser sources, including CO2, excimer, Nd:YAG, fiber, and short pulse. He also addresses topics crucial to obtaining good processing results, such as IR and UV material–photon interaction, basic optical components, and system integration. The text goes on to cover real-world applications in the medical, microelectronics, aerospace, and other fields. It concludes with details on processing many common materials, such as metals, silicon, ceramics, and glasses.
For engineers and project managers, this book provides the foundation to achieve cost-effectiveness, the best edge quality, and the highest resolution in small-scale industrial laser machining. It will help you select the correct kind of laser for your application and identify real opportunities for growth in the marketplace.
作者簡介
Ronald Schaeffer is the chief executive officer of PhotoMachining, Inc. He earned a PhD in physical chemistry from Lehigh University and has been involved in laser manufacture and materials processing for more than 25 years. He currently writes a column for MICROmanufacturing and is on the editorial advisory board of Industrial Laser Solutions.
目次
Introduction
Laser Theory and OperationBrief Review of Laser PhysicsCO2 LasersSolid-State Nd3+ LasersExcimer LasersFiber LasersDisk LasersUltrashort Pulse (USP) LasersComparisons of Laser Sources
Optics OpticsBeam Delivery Systems—Imaging and FocusingSteps to an Effective Optical Setup
Light–Material InteractionPhotoablation and Material Interaction with UV LightThermal EffectsTaperFluence
System IntegrationProcessing System ConsiderationsGeneral RequirementsPart Viewing SystemsMotion ControlPart HandlingLaser Support Systems SoftwareSafety
Discussion of Some Processing TechniquesAligning to FiducialsLaser Drilling Large Numbers of Really Small, High-Aspect Ratio HolesGas AssistMicromarkingPatterning Thin FilmsMultiple Hole Drilling Using GalvosIn-Volume Selective Laser Etching (ISLE)
ApplicationsMicroelectronics and Semiconductors Medical DevicesDefense/AerospaceRenewable EnergyOther
MaterialsMetalsCeramicsGlassesSilicon and Gallium ArsenidePolymersDiamond
Metrology and CleaningMetrology Postlaser Cleaning
Conclusion
Appendix: Additional Reading
Index
