1-20 of 619 Search Results for

design defects

Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
... Abstract This chapter identifies the primary causes of service failures and discusses the types of defects from which they stem. It presents more than a dozen examples of failures attributed to such causes as design defects, material defects, and manufacturing or processing defects as well...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... defects, forming and welding defects, design defects, improper cleaning methods, and ineffective maintenance. It also includes case studies and illustrations. boiler tubes chemical cleaning design defects forming defects material defects quality control welding defects Failures Attributed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
... to various defects Material defects due to selection of wrong material Forming and welding defects Design defects Failures related to cleaning and maintenance Each one of these failure mechanisms is discussed in the following sections of this chapter along with relevant case studies...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270003
EISBN: 978-1-62708-301-0
... of one type or another introduced mostly inadvertently during the various stages of the manufacture of a component and its usage. These defects could get introduced during the design of a component, its manufacture, assembly, inspection, and maintenance. Manufacture of a component involves materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110262
EISBN: 978-1-62708-247-1
... of design-for-test (DFT) scan based designs, defects within scan chains have become increasingly common in ICs [3] . An established technique for isolating failures along ATPG scan chains is Laser Voltage Imaging (LVI), also known as Frequency Mapping, along with CADNav applications. The typical FA...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... fracture and explains how they reshaped design philosophies, procedures, and tools. It also discusses the influence of material and manufacturing defects, operating conditions, stress concentration and intensity, temperature and pressure, and cyclic loading, all of which play a role in the onset of fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110101
EISBN: 978-1-62708-247-1
... on the stuck-at fault model and could diagnose down to a logic net in the design. Although this approach is useful for localization, it has some limitations. Stuck-at patterns typically detect a vast variety of defect types, including bridges and opens, but this fault model is not always sufficient...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110634
EISBN: 978-1-62708-247-1
... and structural testing. They are described in more detail later in this chapter. Speed and Power Binning Tests In addition to determining if a chip has a defect or not, it is often required to determine the speed at which the device fully operates. For example, the same microprocessor design may operate...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780147
EISBN: 978-1-62708-268-6
... reach is that it missed something in its analysis or that the design is defective. This chapter focuses on the latter possibility by discussing the various factors that a failure analysis team should consider to identify the causes of defects in system design. These include requirements identification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110666
EISBN: 978-1-62708-247-1
... of adherence to specification immediately following manufacture (designated time-zero or T 0 ), where reliability is an equivalent measure at any time later in the product (or component) lifetime. One example of the relationship between these two relates to defects. Quality ( T 0 ) defects are those...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110506
EISBN: 978-1-62708-247-1
... features vs. integration issues for vendor tools. Failure Mode Classification Failure mode classification is best done from a design and layout point of view. Although it is desirable to have a perspective that is closer to the root cause defect, trying to incorporate defect nomenclature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110132
EISBN: 978-1-62708-247-1
... are designed for lower frequency applications compared to the TDR bandwidth. Thus much of the high-frequency signal may be filtered out after a certain distance, resulting in reduced actual resolution and sensitivity. Defect location measurement accuracy will be affected as well because signal travels through...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... Abstract This appendix provides detailed information on design deficiencies, material and manufacturing defects, and service-life anomalies. It covers ingot-related defects, forging and sheet forming imperfections, casting defects, heat treating defects, and weld discontinuities. It shows how...
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
... a large inventory of potentially defective components and plans to implement a design change as a future corrective action, it may make sense to screen the existing inventory on an interim basis until the design change is incorporated. However, interim corrective actions of this nature should only...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500211
EISBN: 978-1-62708-317-1
.... It explains how to determine strip width and bending sequences and identifies the cause of common roll-forming defects. It also discusses the selection of roll materials and explains how software helps simplify the design of roll forming lines. forming equipment roll forming IN ITS GENERAL FORM...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110025
EISBN: 978-1-62708-247-1
... assembly. This trend includes the integration of 3D device build ups, such as stacked-die devices and package-on-packages (PoP). The resulting design realizations are setting a new standard to quality and reliability and in consequence the related failure analysis. Physical root causes for defective...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110524
EISBN: 978-1-62708-247-1
... are either scribed and broken or diced with a wafer saw. Great care must be taken to not induce damage at the chip edge in many designs, since such damage can subsequently result in defects that will later grow to cause problems. A common chip size is 250 x 350 µm – visible by the unaided eye, but only...
Image
Published: 01 July 1997
Fig. 7 Radiograph showing positive image of macroscopically visible defects in the X-65 pipe steel of Fig. 6 . See Fig. 6 for designation of specific defects. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... automatic inspection stations (machine vision systems). Casting Defects Poor casting design can interfere with the ability of the foundry to use the best techniques to produce reliable castings. The designer also specifies the quality requirements that ensure that the cast component will perform...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2021
DOI: 10.31399/asm.tb.ciktmse.t56020013
EISBN: 978-1-62708-389-8
... Abstract This chapter provides readers with worked solutions to more than 25 problems related to compositional impurities and structural defects. The problems deal with important issues and challenges such as the design of low-density steels, the causes and effects of distortion in different...