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laser processing

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
... implantation, and laser processing. The last section focuses on nonmetallic inorganic coatings including ceramic coating materials, conversion coatings, and anodized coatings. corrosion control protective coatings corrosion inhibitors organic coatings metallic coatings nonmetallic inorganic coatings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
...Abstract Abstract This chapter discusses the fusion welding processes, namely oxyfuel gas welding, oxyacetylene braze welding, stud welding (stud arc welding and capacitor discharge stud welding), high-frequency welding, electron beam welding, laser beam welding, hybrid laser arc welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350087
EISBN: 978-1-62708-315-7
... properties of the steel or cast iron component. In this section, surface hardening is limited to localized heat treating processes that produce a hard quenched surface without introducing additional alloying species. This approach consists of hardening the surface by flame, induction, laser-beam, or electron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110153
EISBN: 978-1-62708-247-1
... requirements. Thinning of the substrates can be accomplished by flat lapping, laser assisted chemical etch, plasma reactive ion etch, and CNC based milling and polishing. The article discusses the general characteristics, key principles, advantages, and disadvantages of these processes. It also contains case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900305
EISBN: 978-1-62708-358-4
...Abstract Abstract Surface modification technologies improve the performance of tool steels. This chapter discusses the processes involved in oxide coatings, nitriding, ion implantation, chemical and physical vapor deposition processing, salt bath coating, laser and electron beam surface...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
... limitless because of the ability to deposit almost any material by vapor deposition and the ultrahigh heating and cooling rates of thin surface layers heated by electron and laser beams. This chapter describes some of the newer processes used to apply thermochemical modifications, coatings, and high-energy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
...: Approximately 10 h for tungsten carbide; approximately 300 h for sapphire Slots or holes made are subject to taper, which increases as distance between nozzle and workpiece (nozzle tip distance, or NTD) increases. Source: Ref 17 Process summary chart for laser beam machining and electron beam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110379
EISBN: 978-1-62708-247-1
... detection system possible was developed. Optical beam induced current (OBIC) measurements can be taken. As the OBIC current raises the surface of silicon being etched is closer to the active transistors. When the OBIC current reaches a threshold value known for the specific device the laser process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780001
EISBN: 978-1-62708-268-6
...Abstract Abstract This chapter focuses on what can cause a system to fail and addresses the challenge in approaching a system failure. It then examines the steps involved in the four-step problem-solving process: defining the problem, identifying all potential failure causes and evaluating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440243
EISBN: 978-1-62708-262-4
... of Rockwell C hardness variation between these bands of different chemical composition after hardening. This problem is greatest when the bands are widest and the heat treatment times are very short, such as for the induction hardening or laser processes. A SUCCESSFUL HEAT TREATING OPERATION is determined...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110524
EISBN: 978-1-62708-247-1
... (that is, with less than 30mW of single-mode power), surface coatings may be used to prevent further oxidation. Lasers also sometimes eliminate metallization near the facet to reduce the surface current flow. For higher-power devices (with more than 100mW of single mode power), regrowth or special processing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110228
EISBN: 978-1-62708-247-1
... operation . IEEE Transactions on Circuits and Systems II: Analog and Digital signal processing , 45 ( 3 ), 415 - 417 . 10.1109/82.664253 [27] Mattey G. , & Ranganathan L. , ( 2017 ). Laser Silicon Interaction Study on Ring Oscillators to establish Temperature Voltage Dependency...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110144
EISBN: 978-1-62708-247-1
.... Potting epoxy protects the package and leadframe. Figure 2 Close up view of TSOP style package cavity down. Distance between the leads is 2.54mm. Potting epoxy protects the package and leadframe. Figure 3 Laser ablated BGA package with copper wires. The ablation process was run until...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110244
EISBN: 978-1-62708-247-1
... Commercial LVP Systems Optoelectronic Imaging and Probing Visible Laser Probing (VLP) - IR to Visible Common Observations Future Work Summary/Conclusion Electro-Optical Effects Free Carrier Effects Background Waveform Acquisition Process Oscilloscope vs. Digitizer Thermal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110001
EISBN: 978-1-62708-247-1
... nm laser intensity. One solution to circumvent is to use laser source with a high power, at least 1 watt (output from source). Test head cooling mechanism is another factor that can impact the quality of wafer-level FI analysis. Vibrations are induced as a result of the cooling process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
...; the subsequent slow increase is attributed to pore reduction. Fig. 22.31 Effect of sintering temperature on electrical conductivity of plasma-sprayed beryllium. Source: Dunmur 1979 The use of laser processing to consolidate porous, thermal-sprayed beryllium deposits is a feasible option...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110485
EISBN: 978-1-62708-247-1
... Figure 1 Typical SPM configuration showing the basic elements and reference axes. Figure 2 Scanning electron microscope (SEM) images of a typical single crystal silicon SPM probe. Figure 5 AFM configuration with a laser/photodetector detection system. (Image courtesy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110499
EISBN: 978-1-62708-247-1
... Figure 1 State Diagram of a DRAM device Figure 3 Timing diagram of the bitline voltage during an activation process. Figure 2 Schematic of a DRAM cell. Figure 4 Schematic of a sense amplifier circuit with a cell capacitor and transistor on the left. Figure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780183
EISBN: 978-1-62708-268-6
... or interim corrective actions to overcome design, process, and other failure causes. The chapter concludes by describing the process of corrective action implementation. corrective action failure analysis failure causes problem-solving process THE FOUR-STEP PROBLEM-SOLVING PROCESS ( Fig. 18.1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030089
EISBN: 978-1-62708-349-2
... the contrast of the microcracks. Epi-fluorescence, 390–440 nm excitation, 10× objective The use of laser dyes for enhancing microcracks is a simple process. It is usually best to vacuum dry the polished section between approximately 40 and 50 °C (105 and 120 °F) before applying a laser dye penetrant...