Results 261 to 270 of about 23,349 (314)
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1971
Printed wiring performs a specific function and can, therefore, contribute to the overall success or failure of apparatus in service as can any other component. Would-be users of this form of interconnection formerly had serious misgivings as to its reliability compared with traditional wiring practice which in general enjoyed a good reputation. As the
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Printed wiring performs a specific function and can, therefore, contribute to the overall success or failure of apparatus in service as can any other component. Would-be users of this form of interconnection formerly had serious misgivings as to its reliability compared with traditional wiring practice which in general enjoyed a good reputation. As the
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1994
1. One light-sensitive copper coated (on one side) printed circuit board about 3.5 inches long and 2.5 inches wide. 2. No. 2 photoflood lamp. 3. Chemicals: Trichloroethylene, ferric chloride, and acetone (most finger nail paint removers contain acetone). 4.
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1. One light-sensitive copper coated (on one side) printed circuit board about 3.5 inches long and 2.5 inches wide. 2. No. 2 photoflood lamp. 3. Chemicals: Trichloroethylene, ferric chloride, and acetone (most finger nail paint removers contain acetone). 4.
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Printed Circuit Board Layout [PDF]
, 2002 The initial layout of a printed circuit (PC) board is an important part of the overall EMC strategy. While for some aspects of the design there is very little that can be negotiated, it is worth the time and effort to consider what can be done.
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1992
Other than choosing component technologies and packages that offer lower radiation levels, the designer has very few EMI reduction options at the device level. In contrast, the PCB, as a building block, offers the first area in which a strong design action is possible.
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Other than choosing component technologies and packages that offer lower radiation levels, the designer has very few EMI reduction options at the device level. In contrast, the PCB, as a building block, offers the first area in which a strong design action is possible.
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Printed Circuit Board Basics [PDF]
, 2009 This chapter contains sections titled: Hidden RF Characteristic of Passive Components How and Why RF Energy Is Developed Within the PCB Magnetic Flux and Cancellation Requirements Routing Topology Configurations Layer Stackup Assignment Radial Migration Common-Mode and Differential-Mode Currents RF Current
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Shielded Tracks on a Printed Circuit Board
Journal of Electromagnetic Waves and Applications, 2005Fully shielded tracks can be embedded in multilayer printed circuit boards by a novel manufacturing technique. The paper presents a numerical analysis of the influence of dimension tolerances on the characteristic impedance. For partly shielded tracks the coupling between tracks and the environment is studied as well.
S. Kapora, A.P.J. van Deursen
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Authentication of Printed Circuit Boards
International Symposium for Testing and Failure Analysis, 2016Abstract Printed Circuit Boards (PCBs) are easy target for reverse engineering and counterfeiting attacks due to the distributed supply chain. The integrated circuits (ICs) authentication techniques such as Physically Unclonable Function (PUF) are not easily extendible to PCBs.
Nareen Vobilisetti +2 more
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Slow light on a printed circuit board
Optics Letters, 2011Slow-light effects induced by stimulated Raman scattering in polymer waveguides on a printed circuit board are shown to enable a widely tunable delay of broadband optical signals, suggesting an advantageous platform for optical information processing and ultrafast optical waveform transformation.
Aleksei M. Zheltikov +7 more
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Simulation of Printed Circuit-board Manufacturing
Journal of the Operational Research Society, 1989The paper describes a simulation model that was built to predict the production output of a printed circuit-board manufacturer. Such a prediction with traditional forecasting tools is difficult owing to varying lot sizes, designs, processing time, product mix, machining capacity and fluctuating work-force.
Karen M. Thinnes +1 more
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Printed circuit board assembly
1991The ability to assemble a printed circuit board to a consistently high quality is essential to the manufacture of electronic devices. Printed circuit board assembly covers a wide range of different processes which are dependent on the types of component to be assembled, the two major types of components being leaded components and surface mount ...
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