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IEEE Transactions on Parts, Hybrids, and Packaging

Issue 2 • Date June 1976

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Displaying Results 1 - 17 of 17
  • Who's Who in G-PHP

    Publication Year: 1976, Page(s): 81
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    Freely Available from IEEE
  • Foreword

    Publication Year: 1976, Page(s): 82
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    Freely Available from IEEE
  • The Tapped Analog Delay

    Publication Year: 1976, Page(s):118 - 125
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1032 KB)

    The tapped analog delay (TAD) unit is a newly developed MOS integrated circuit designed specifically for the realization of nonrecursive filters. Such a device greatly simplifies the design of low-frequency filters. One such device has twelve delay taps, each tap separated from its neighbor by two sample periods. The analog input signal is sampled and each sample sequentially stored on one of a gr... View full abstract»

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  • A Compact and Lightweight Quick-Starting Fluorescent Lamp Ballast

    Publication Year: 1976, Page(s):94 - 97
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    A compact and lightweight quick-starting ballast for a 20-W 24-in fluorescent lamp has been developed. Adding capacitance across an ignition coil reduced the starting period to 53 percent of the original value. This new ballast produced better power factors. No noise was produced by this new ballast. View full abstract»

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  • The Lubrication of Sliding Base Metal Contacts

    Publication Year: 1976, Page(s):147 - 153
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1040 KB)

    The behavior of the contacts of the Panel Bank Switch, in which a phosphor-bronze brush slides into position over brass terminals, is studied in a simple laboratory apparatus in which the mechanical operation of the switch is simulated. Contact resistance between brush and terminal is measured as a function of the number of brush-terminal encounters. Terminal wear and static friction are measured ... View full abstract»

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  • The Lightning Arrestor Connector

    Publication Year: 1976, Page(s):89 - 94
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    A multipin connector has been modified to include lightning arresting features. A dielectric stimulated arc is used for rapid electrical, breakdown in the connector prior to any damage to downstream components. This report reviews the connector design basis and concept, and summarizes the electrical test results obtained during development and production. Electrical testing included insulation res... View full abstract»

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  • The Heat Sink Effect of Printed Conductors

    Publication Year: 1976, Page(s):110 - 115
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    The conductors on a printed wiring board can play a significant role in removing heat from electrical components. This paper describes a method of estimating the impact such conductors have on component temperatures. It provides a series of equations and charts for estimating the thermal resistance from one end of a conductor, through the major heat paths to the ambient. The analysis accounts for ... View full abstract»

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  • Heating in Polyethylene Terephthalate Film AC Capacitors

    Publication Year: 1976, Page(s):100 - 105
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    The dissipation factor of polyethylene terephthalate film increases exponentially between ~70 and ~105°C, then decreases to about 160°C, then increases monotonically with temperature. It is shown that this peculiar dissipation factor behavior of PETP with temperature can lead to thermal runaway of alternating current capacitors if they are too large or the applied voltage is too high. Nu... View full abstract»

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  • Observations of Extreme Cases of Contact Activation

    Publication Year: 1976, Page(s):154 - 156
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    The process of contact activation or arc duration enhancement has been observed between various precious and nonprecious metals in highly activated (2 X 10-3- 100 torr) organic vapor-air mixtures. The results suggest that the enhanced arc durations observed under field, and some laboratory conditions, may only be an early stage of contact activation. A condition of extreme activation oc... View full abstract»

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  • Surface Arcover in DC Capacitors

    Publication Year: 1976, Page(s):97 - 99
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    Data useful in the design of dc capacitors have been taken on the voltage for arcover VAacross a distance d on the surface of an insulating polymer film. It is found that VA (kV) = 3d (mm)0.55for arcover in air at p = 83 kPa, T = 20°C and 30 percent RH. The equation applies to buried foil capacitors and to an electrode configuration that simulates a single turn of an ext... View full abstract»

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  • Capacitors for Microwave Applications

    Publication Year: 1976, Page(s):83 - 89
    Cited by:  Papers (2)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    The properties and design of a metal-oxide-metal (MOM) capacitor are reviewed and its performance is compared with that of conventional MOS and metalized ceramic capacitors. The MOM structure is fabricated by growing a high-performance dielectric such as SiO2or Si3N4on silicon and metalizing the dielectric with several mils of copper, after which the silicon "handl... View full abstract»

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  • Thermal Radiation from Finned Heat Sinks

    Publication Year: 1976, Page(s):115 - 117
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    An accurate straightforward technique is presented to compute thermal radiation from finned heat sinks. A set of graphs is included to aid in the computational procedure. The analytical approach presented compares favorably with experimental data. View full abstract»

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  • A Method of Grading Mica for use in High-Reliability Capacitors

    Publication Year: 1976, Page(s):105 - 110
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    The presence of iron or other impurities in mica is known to degrade the quality of mica capacitors. Insulation resistance, capacitance, and loss factor stability are frequently used as a measure of product quality. Mica, as a raw material, may be graded in quality by prescribing limits on structure defects and staining or color. These tests are slow, costly, and subjective in nature. Where high r... View full abstract»

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  • Wipe-Reverse Wipe Design and the Evaluation of Brass/Copper-Beryllium for Electrical Contacts Under Highly Contaminating Conditions

    Publication Year: 1976, Page(s):157 - 159
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    A wipe-reverse wipe technique, which may be incorporated in the design of electrical contact closure mechanisms, was found to markedly decrease the contact resistance of electrical switches even when very heavily contaminated with surfaces oxides, sulfides, or chlorides. The use of this technique reduces the sensitivity of electrical contact operation to environmental contaminants, allows a reduct... View full abstract»

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  • Statistical Interpretation of Meniscograph Solderability Tests

    Publication Year: 1976, Page(s):126 - 133
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1040 KB)

    As part of a thick-film characterization study, a solderability test-program was initiated utilizing the meniscograph. The meniscograph test measures the changes in wetting force as a function of time, and thus affords a description of the kinematics of the wetting phenomenon. Difficulty was encountered in the derivation of unique parameters which provide consistent statistical comparisons. As an ... View full abstract»

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  • Fluid Abrasive Trimming of Thin-Film Resistors

    Publication Year: 1976, Page(s):133 - 138
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    Thin-film nickel-chromium resistors have been trimmed using the fluid jet from an air brush. Micrometersized distilled water droplets impinge on the resistor surface at high velocity, eroding away resistor material, thereby increasing resistance. The need for top hats is eliminated. Substrate damage and the hot spots which result from trim-line cuts are avoided. Trimming up to 230 percent has been... View full abstract»

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  • Determination of Temperature of Integrated-Circuit Chips in Hybrid Packaging

    Publication Year: 1976, Page(s):139 - 146
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1968 KB)

    This paper describes an infrared technique and an analogical method to determine the maximum temperature of a beam-leaded integrated-circuit chip, mounted on a ceramic carrier. The infrared technique employs a color thermogram camera to map the stepwise temperature distribution of a heated surface. From the color-digitized thermograms the chip temperature rise over the ambient air can be computed ... View full abstract»

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Aims & Scope

This Transaction ceased production in 1977. The current publication is titled IEEE Transactions on Components, Packaging, and Manufacturing Technology.

Full Aims & Scope