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Diodes

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001494
EISBN: 978-1-62708-235-8
... Abstract Diode leads that were to be made from OFHC copper were instead made from copper with high oxygen content. The leads had a nickel underplating, a gold final plating, and were brazed to the diode package in a hydrogen atmosphere. After brazing, the leads became embrittled. SEM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001492
EISBN: 978-1-62708-235-8
... diode package was oxygen-free high-conductivity (OFHC) copper and the leads had 50 µin thick electroless nickel underplating and 150 µin thick gold plating. Parallel cracks, perpendicular to the lead length, were observed with corrosion products/oxides in the crack. Some areas with flaked plating were...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006763
EISBN: 978-1-62708-295-2
...-balanced floodlights, especially light-emitting diode (LED) lights, can be beneficial for laboratory photographic documentation. Reflected light off white cards can produce diffused lighting useful for photographic documentation of highly reflective surfaces. Light tents can also be used with highly...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003527
EISBN: 978-1-62708-180-1
... quality. Digital cameras have features ideal for failure analysis work. Those include a liquid crystal diode display screen for display of the image recorded, removable storage media, zoom lenses, and macro-focus capability. Such a camera offers all of the standard features found on a professional...
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