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light emitting diodes

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110524
EISBN: 978-1-62708-247-1
... components can be readily classified as active light-emitting components (such as semiconductor lasers and light emitting diodes), electrically active but non-emitting components, and inactive components. This chapter focuses on the first category, and particularly on semiconductor lasers. The discussion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730037
EISBN: 978-1-62708-283-9
.... It discusses the significance of energy bands, intrinsic and extrinsic conduction, and the properties of compound semiconductors. It also covers semiconductor devices, including p-n junctions, light emitting diodes, transistors, and piezoelectric crystals. electrical behavior light emitting diodes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.9781627082839
EISBN: 978-1-62708-283-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110180
EISBN: 978-1-62708-247-1
... materials and observed electrically stimulated light emission. This phenomenon was mostly understood as recombination of electrons and holes, an interband and bipolar effect. In the world of optoelectronic devices, EL is the term dealing with fundamentals of LED’s (light emitting diode) with bipolar...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500301
EISBN: 978-1-62708-317-1
... a signal. Photoelectric sensors consist of four main components: light source, light detector, lenses, and output switching device. The light source or transmitter is a light-emitting diode (LED) that emits light when a current is applied. These LEDs are made to emit a specific wavelength or color of light...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110613
EISBN: 978-1-62708-247-1
... in the quiescent portion of the logic cycle are either in the nonsaturated-state or off-state so that no photons are emitted. However, bridge and open defects may hold one or more transistors in the saturated state where the presence of a light emitting transistor indicates proximity of a defect. The defect may...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110285
EISBN: 978-1-62708-247-1
... contact is also visible indicating leakage to the N-well. Figure 77 AFP topographical image (Left) and the corresponding AFP current contrast image (Right) for a failing 130nm SRAM bit cell (box). The light of the optical microscope induces a photo electric effect in the active silicon...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
... J.M. Jr. , 1982b . Chemical Vapor Deposition , Surface Cleaning, Finishing, and Coating , Vol 5 , Metals Handbook , 9th ed. , American Society for Metals , p 381 – 386 Bohdansky J. , and Roth J. , 1984 . Light Ion Sputtering of Low Z Materials in the Temperature Range 20...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... or along the housing bottom to neighboring pads ( fig. 11 ). Dendrite growth forms a low resistive path across LED; resulting in less current through LED and no or less emitted light. When discussing LEDs, it is important to distinguish between semiconductor-related and packaging related failures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110132
EISBN: 978-1-62708-247-1
... by photoconductive switch (PCS). Figure 2 illustrates the basic components involved in the EOTPR system [3] . It contains an ultrafast laser source, a transceiver module, a high-speed probe, a light detection and modulation module, and a readout and display instrument. The ultrafast laser source emits a high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110434
EISBN: 978-1-62708-247-1
... by another electron, known as an Auger electron, emitted from an outer shell. The Auger effect tends to dominate for low atomic number elements, and so relatively few x-rays are produced for light elements. The emitted x-rays and Auger electrons have energy that is characteristic of the electron transitions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050025
EISBN: 978-1-62708-311-9
...-dioxide field-effect transistors (MOS FETs), to produce dc pulses that are then made sinusoidal to form high-frequency ac. (Some current source power supplies do this in one step.) Solid-state diodes are used to convert the input ac to dc. Diodes permit the flow of current in only one direction...
Series: ASM Technical Books
Publisher: ASM International
Published: 23 January 2020
DOI: 10.31399/asm.tb.stemsem.9781627082921
EISBN: 978-1-62708-292-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480353
EISBN: 978-1-62708-318-8
... Association Fig. 15.30 Light utility vehicle evolution. Courtesy of the International Titanium Association Fig. 15.25 Titanium dental tools, surgical screws, and implants. Source: Ref 15.24 Fig. 15.31 Influence of automobile weight on fuel economy for a passenger vehicle...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110563
EISBN: 978-1-62708-247-1
.... Figure 20 a) Reflected light and b) LSIM image using a 5mW, 540nm laser. A bottom level comb finger from a stack of three shown shorting to the ground plane is identified. Figure 21 Bump structure in a MEMS microphone. Figure 22 a) Cross section of a CMUT; b) Magnification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110228
EISBN: 978-1-62708-247-1
... , Pey KL , Yang JKW , Kok WL , Koh LS , “ Implementing Time Resolved Laser Assisted Device Alteration using Pulse on demand nanosecond Laser Diode ” In Proceedings from the 42nd International Symposium for Testing and Failure Analysis . ASM International , 2016 [16...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440145
EISBN: 978-1-62708-352-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.9781627083485
EISBN: 978-1-62708-348-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440103
EISBN: 978-1-62708-352-2
... undesirable. The problem is no less acute in relation to optoelectronic and photonic modules. A typical example is a laser diode soldered to a heat sink (for example, a thermoelectric cooler) in order to stabilize the junction temperature. The joining operation must leave the adjacent light-emitting facet...