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advanced board level failure analysis

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Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006827
EISBN: 978-1-62708-329-4
... at the assembly level. This article covers the properties of solder alloys and the corresponding intermetallic compounds. It includes the dominant failure modes introduced during the solder joint manufacturing process and in field-use applications. The corresponding failure mechanism and root-cause analysis...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006821
EISBN: 978-1-62708-329-4
... components failure analysis AVIATION INVESTIGATIONS are complex and require multidisciplinary teams. This is due, in part, to advancements in engineering design and materials used in modern aircraft, as well as the complex loading conditions and stresses aircraft endure in-service. Although specific...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006400
EISBN: 978-1-62708-192-4
... and isolate different fault types (e.g., failure mode, effects, and criticality analysis). In the next layer, the degradation level is identified to provide an input to the prognostics block and to predict the remaining useful life of the asset. The top two layers are responsible for the intelligent decisions...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003513
EISBN: 978-1-62708-180-1
... concept were discussed in a seminar held by the Institution of Mechanical Engineers ( Ref 10 ). Origin and Description of the Failure Assessment Diagram The United Kingdom Central Electricity Generating Board (CEGB) first proposed a failure assessment diagram ( Fig. 1 ) based on the two-criteria...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002369
EISBN: 978-1-62708-193-1
... stress level fatigue fatigue analysis probability of failure uncertainty STATISTICAL METHODS and probability are useful tools when uncertainty influences important outcomes, which is why many fundamental mathematical aspects of statistical theory began with the casinos of Europe (e.g., Monte...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002440
EISBN: 978-1-62708-194-8
... capability at least equal to that of the actual design team. Vendor participation is highly desirable, especially in conceptual and final design reviews. Design review checklists should be prepared well in advance of actual board meetings. These checklists should cover all aspects of the design...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003458
EISBN: 978-1-62708-195-5
... composite patch repair designing for repairability mechanically fastened joint structural damage Repair of advanced composite structures is a relatively new area of engineering design and analysis. Repair engineering requires a thorough understanding of composite structural mechanics and structural...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... in failure analysis than the more exact instrumentation employed in SEMs, the technology is advancing and is worthy of note due to its capability for nondestructive analysis and application in the field. This article begins with information on the basis of the x-ray signal. This is followed by information...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003445
EISBN: 978-1-62708-195-5
... composite structures that are sensitive to out-of-plane or through-thickness loads been correctly or adequately covered by analysis or lower-level testing? Are there any deflections that significantly alter the load path and increase the stress-strain level of a structural element...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004175
EISBN: 978-1-62708-184-9
... (0.4 to 0.8 mils) lines and spaces, and structures involving several layers of stacked vias. Consequently, hitherto unknown failure mechanisms are likely to be encountered. As the feature sizes diminish, the distinction between first- and second-level packaging becomes less clear. Failure analysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... preventable risk. The real question is whether the risk outweighs the benefits. A risk-benefit analysis should include at least five factors: Gravity of the danger posed by the design (i.e., severity of the consequences in the event of injury or failure) Probability (including frequency and exposure...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001265
EISBN: 978-1-62708-170-2
... ). Tensile Strength and Ductility Advances in electroless copper formulations, particularly for full-build applications in printed wiring board applications, have centered on achieving deposit mechanical properties, specifically tensile strength and ductility, that ensure the needed film reliability...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006438
EISBN: 978-1-62708-190-0
..., and/or displacement sensors measure local displacements. Analysis includes amplitude, frequency, and differential measurements Changes may indicate weakening or failed structural components, alignment issues, bearing wear, shaft crack, imbalance. Indirect indication of degradation or failure May provide advance...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... of detecting surface discontinuities by magnetic-particle inspection, liquid penetrant inspection, and eddy-current testing. The major NDE methods for internal (volumetric) inspection in failure analysis also are described. eddy-current testing liquid penetrant inspection magnetic-particle inspection...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002458
EISBN: 978-1-62708-194-8
... Abstract This article describes the relationship between failure analysis and materials selection and a basic procedure for performing a failure analysis. It discusses the methods for analyzing failures to improve materials selection and presents examples that illustrate the use of failure...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006819
EISBN: 978-1-62708-329-4
.... (The fatigue assessment methods in API 579 are discussed in more detail later in this article.) Despite all of the advances in fatigue analysis methods and design and postconstruction code rules, fatigue failures still happen today (2020) in pressure vessels and piping as well as many other types of fixed...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006462
EISBN: 978-1-62708-190-0
... for an automated eddy current inspection of titanium bolt holes. Two confidence level POD curves are shown, 50% and 95%. Berens and Hovey produced an early study that compared POD analysis techniques to determine the optimal calculation method ( Ref 8 ). Fig. 2 Schematic of probability of detection (POD...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003367
EISBN: 978-1-62708-195-5
...–160 to 180 °C (–250 to 350 °F), allowing improved signal and focal accuracy. Radomes Advancements in radar systems, microwave communications, and targeting and tracking electronics using higher frequencies and energy levels has contributed to more-demanding conditions for electromagnetic...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... levels, followed by a discussion on the role of failure analysis and the appreciation of quality assurance and user expectations. Systematic analysis of equipment failures reveals physical root causes that fall into one of four fundamental categories: design, manufacturing/installation, service...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006800
EISBN: 978-1-62708-329-4
... a hole—and then rejoin. The weld lines tend to be weaker and more subject to fatigue failures. Source: Ref 4 Risk and Hazard Analysis One tool used in the evaluation of risk is the process of risk and hazard analysis, which helps to identify the level of risk and to pinpoint the parts...