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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110042
EISBN: 978-1-62708-247-1
... are used to correct all aberrations. Figure 18 Specially designed fluid immersion lenses improve resolution by up to 40% over air immersed lens. The index of the immersion medium must match that of the 1 st lens. Figure 19 Solid Immersion Lens (SIL) in optical contact with the wafer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110132
EISBN: 978-1-62708-247-1
... and telecommunication industry. This article provides a brief review of conventional TDR and its application limitations to advanced packages in semiconductor industry. The article introduces electro optical terahertz pulse reflectometry (EOTPR) and discusses how its improvements of using high frequency impulse signal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030001
EISBN: 978-1-62708-349-2
... methods, and dispersed-phase toughening. In addition, the chapter provides information on interlayer-toughened composites and honeycomb or foam structure composite materials. It also discusses the processes in optical microscopy of composite materials. dispersed-phase toughening honeycomb structure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.9781627083492
EISBN: 978-1-62708-349-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780177
EISBN: 978-1-62708-281-5
...Abstract Abstract This article is a brief account of various factors pertinent to the characterization of materials and analysis of optical components, namely transmission, haze, yellowness, refractive index, surface irregularity, birefringence, internal contamination, surface gloss, and color...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110153
EISBN: 978-1-62708-247-1
... RST. Figure 21 The geometry of the objective lens, and the small working distance necessitate custom configured sockets, clamps and board for tester stimulus [22] . Figure 22 SIL in contact with backside thinned silicon [23] . Figure 23 SIL in optical contact...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110196
EISBN: 978-1-62708-247-1
... reviews the basic physics behind active photon injection for local photocurrent generation in silicon and thermal laser stimulation along with standard scanning optical microscopy failure analysis tools. The discussion includes several models for understanding the local thermal effects on metallic lines...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110010
EISBN: 978-1-62708-247-1
.... Figure 9 Optical image showing broken trace in package substrate Abstract Abstract As semiconductor feature sizes have shrunk, the technology needed to encapsulate modern integrated circuits has expanded. Due to the various industry changes, package failure analyses are becoming much more...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110244
EISBN: 978-1-62708-247-1
... at 12.5MHz with an optical power of 2mW from the drain of a two-transistor inverter using (A) 1320nm, (B) 1154nm, (C) 1064nm, and (D) 785nm laser interrogation. [45] Figure 14 Laser power study between 1064nm (left) and 785nm (right) systems. From top to bottom, the power was increased: 1.5mW...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030089
EISBN: 978-1-62708-349-2
...Abstract Abstract The analysis of composite materials using optical microscopy is a process that can be made easy and efficient with only a few contrast methods and preparation techniques. This chapter is intended to provide information that will help an investigator select the appropriate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030023
EISBN: 978-1-62708-349-2
...Abstract Abstract Specimen preparation is the first step that determines the quality of the microstructural information that can be obtained using optical microscopy. This chapter describes the sample preparation methods that are applicable to most types of composite materials containing short...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030043
EISBN: 978-1-62708-349-2
...Abstract Abstract Rough grinding and polishing of mounted specimens are required to prepare the composite sample for optical analysis. This chapter describes these techniques for preparing composite materials. First, it provides information on grinding and polishing equipment and describes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030067
EISBN: 978-1-62708-349-2
... composite material that also commonly requires optical analysis. This material is thermosetting-resin-based prepregs, which are the precursors to many high-performance composite parts. These types of prepregs are made by preimpregnating continuous fibers or fabric with a controlled volume of uncured...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030115
EISBN: 978-1-62708-349-2
... microscopy contrast methods are shown throughout. fiber-reinforced polymeric composites grinding mounting polishing thin-section preparation transmitted-light microscopy The technique that is used to prepare fiber-reinforced composite specimens for optical analysis dictates the information...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030137
EISBN: 978-1-62708-349-2
... performance. This chapter describes the optical microscopy and bright-field illumination techniques involved in analyzing ply terminations, prepreg plies, splices, and fiber orientation to provide the insight necessary for optimizing composite structure and performance. composites fiber orientation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030147
EISBN: 978-1-62708-349-2
... of these materials. With this technique, the morphology of the voids is also unknown. As a complementary technique, optical microscopy can be used to determine the morphology of the voids, which is, in many cases, as important as knowing the void volume. This is critical to understanding the relation of the voids...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030159
EISBN: 978-1-62708-349-2
... and reflected-light optical microscopy techniques ( Chapter 5, “Viewing the Specimen Using Reflected-Light Microscopy” ). Figure 9.1 ( a and b ) shows areas of a composite material where microcracks formed after thermal cycling. In Fig. 9.1(a) , microcracks are found in the resin-rich areas between the tows...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030177
EISBN: 978-1-62708-349-2
..., ultrathin sections were developed from the composite materials to use transmitted-light optical microscopy contrast techniques to determine the phases. Figure 10.1 shows a cross section of a carbon-fiber-reinforced composite that has a very small dispersed-rubber phase in the matrix. The phase size...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030193
EISBN: 978-1-62708-349-2
... interlayer. While these techniques are very useful for understanding the extent of damage in a composite, the details of the damage and the mechanism cannot be determined. As a complementary technique to the aforementioned analytical methods, optical microscopy is an invaluable tool. Additional information...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030211
EISBN: 978-1-62708-349-2
... composites for optical microscopic analysis requires the creation of ultrathin sections so that transmitted polarized light can be used. Throughout the literature, this has often been performed using a microtome or similar instrument. However, this method often leads to destruction of the morphology...