Showing papers on "Reliability (semiconductor) published in 1977"
TL;DR: An approach using digital techniques to control the speed of a chopper-fed D.C. motor using random logic circuits and an Intel 8080 microcomputer offers overall advantages in performance, price, flexibility, reliability and power requirements.
Abstract: An approach using digital techniques to control the speed of a chopper-fed D.C. motor is discussed. This digital system consisting of random logic circuits and an Intel 8080 microcomputer offers overall advantages in performance, price, flexibility, reliability and power requirements.
49 citations
Patent•
19 May 1977
TL;DR: In this article, the authors proposed a multilayer structure to reduce costs and increase reliability by composing all layers of the wiring with single-crystalline or poly-crystaline silicon and silicon oxide.
Abstract: PURPOSE:To achieve the decrease in costs and the increase in reliability by composing all layers includijng wiring with single-crystalline or polycrystalline silicon and silicon oxide thereby forming a multilayer structure.
27 citations
19 citations
1 Oct 1977
TL;DR: This report describes fluidic components and systems now in use or ready for use in many applications, and under development are rate sensing circuits for roll rate control of cannon-launched guided projectiles and missiles, and a fluidic capillary pyrometer for continuous temperature measurements in high-temperature process control.
14 citations
TL;DR: This article contains a description of the central control, input/output subsystem, processor-peripheral interface, master control console, and the interunit communication bus system.
Abstract: This article contains a description of the central control, input/output subsystem, processor-peripheral interface, master control console, and the interunit communication bus system. The units are discussed in a manner which highlights comparison of features with No. 1 ess and stresses those features which are most important in meeting the stringent reliability objectives.
13 citations
1 Apr 1977
TL;DR: The failure of semiconductor components is often accelerated by abnormal stresses, elevated temperature being the most successful although environmental humidity and excess current and voltage can be used selectively as discussed by the authors, and the acquired data must be appropriately processed, recognizing, for example, the effect of competing failure mechanisms.
Abstract: The failure of semiconductor components is often accelerable by abnormal stresses, elevated temperature being the most successful although environmental humidity and excess current and voltage can be used selectively. In order to be useful for reliability prediction and user protection, the acquired data must be appropriately processed, recognizing, for example, the effect of competing failure mechanisms.
13 citations
TL;DR: Radiative attachment coefficients for the process A + e → A - + h v were investigated in the temperature range 10-10 4 K using a number of experimental and theoretical sets of photodetachment cross sections as mentioned in this paper.
Abstract: Radiative attachment coefficients for the process A + e → A - + h v are investigated in the temperature range 10-10 4 K using a number of experimental and theoretical sets of photodetachment cross sections The behaviour of the rate coefficients obtained using different sets of data resembles with that of the previous investigations 4,7) A discussion for their reliability is also given
10 citations
Patent•
31 Mar 1977
TL;DR: In this paper, a brush holder and a voltage regulator holder are formed into an integral molding body, and productivity and reliability are enhanced by adding a voltage voltage regulator to the brush holder.
Abstract: PURPOSE:A brush holder and a voltage regulator holder are formed into an integral moulding body, and productivity and reliability are enhanced.
10 citations
Patent•
11 Mar 1977
TL;DR: In this article, a photoelectric revolution speed detector is used to generate signals shifted in phase by 180 degrees to obtain pulse signals, whereby reliability is improved and the forward and reverse revolutions of a rotating body is detected.
Abstract: PURPOSE:Arrangement is so made to cause a photoelectric revolution speed detector to electrically generate signals shifted in phase by 180 deg. to obtain pulse signals, whereby reliability is improved and the forward and reverse revolutions of a rotating body is detected.
9 citations
TL;DR: The level of reliability of fuel rods operating in commercial nuclear power plants has been less than desired for a number of reasons as mentioned in this paper, and several of these causes have been successfully minimized, but none of them have been solved yet.
Abstract: The level of reliability of fuel rods operating in commercial nuclear power plants has been less than desired for a number of reasons. Several of these causes have been successfully minimized, but ...
8 citations
Patent•
26 Mar 1977
TL;DR: In this article, a remote control apparatus for an engine having high reliability and cheap cost of production by adding an electric remote control device operable from a desired position to a mechanical remote control devices so that both systems are changable optionally.
Abstract: PURPOSE:To obtain a remote control apparatus for an engine having high reliability and cheap cost of production by adding an electric remote control device operable from a desired position to a mechanical remote control device so that both systems are changable optionally.
TL;DR: The topic of microprocessor reliability into proper perspective is put in proper perspective with a discussion of device-failure modes, test techniques, in-house tests and field experience.
1 Jan 1977
TL;DR: In this article, the authors evaluated the reliability and predictability of appraisal techniques as a means of estimating current value as compared with historical value and found that simple prediction models that used current values had more predictive ability than those which used book values.
Abstract: In recent years, accountants have "become increas ingly concerned with which controversial concept of asset valuation to adopt in preparing financial statements. Asset valuation concepts seem to he a fundamental issue in income determination. Of these concepts, current value has "been widely recommended as a means of improving financial information so as to make it more useful in making predictions and decisions. One major criticism of current value accounting is that it might he subjective and personal hias could he introduced. This is true especially when there are no well-defined market prices, as with industrial and commercial real estate. At present, conclusive empirical evidence relevant to this controversy seems not to exist. Therefore, the purpose of this study is to empirically test the reliability and predictability of appraisal techniques as a means of estimating current value as compared with historical value. In the study, current value accounting is evaluated on the grounds of not only its usefulness, hut also its predictability and objectivity. Perception of current value as an essential part of communication is also considered. A random sample of 250 large corporations in the U.S. was selected and top financial executives were asked to provide (l) their views on the reliability of appraisal values when used as an estimate of current value (Part I of the questionnaire), and (2) data regarding selling, independent appraisal, and book values (Part II). The usable response to Part I was 23 percent. Part II con tains information concerning 1̂ -2 commercial and industrial real estate properties. The results of the executives* perceptions revealed strong support of appraisal value as being a reliable estimate of current value. A study of the characteristics of the sample and a test of the hypotheses revealed that appraisal value is more reliable and objec tive than book value and that there is no difference between appraisal and selling values at the .05 level of significance. A similar finding supported no difference between book values and selling values, even though a level of significance was approached. Appraisers, further more, did not seem to be affected by regional differences or assessed factors affecting changes in economic con ditions . Regression models of appraisals were compared and evaluated with those of book values. As a result, simple prediction (regression) models that used current values had more predictive ability than those which used book values. Multiple regression (prediction) models which used both current and book values' were superior to simple prediction models. The use of appraisals as a method of estimating current value is an area which has been relatively forgotten by accountants. This study is an invitation and a challenge to accountants to conduct more research
Patent•
23 Jun 1977
TL;DR: In this article, a super-high density liquid contact connector capable of increasing the number and density of terminals, requiring only a small insertion and pull-out force, having a simplified construction, a high reliability in electric connection.
Abstract: PURPOSE:To obtain super-high density liquid contact connector capable of increasin increasing the number and density of terminals, requiring only a small insertion and pull-out force, having a simplified construction, a high reliability in electric connection.
Patent•
8 Feb 1977
TL;DR: In this article, the authors proposed a high reliability control of the tape tension by detecting the change of tape tension as electrical change through the magnetic-electric converter, which can be used to detect the magnetic changes through the converter.
Abstract: PURPOSE:High reliability control of the tape tension by detecting the change of tape tension as electrical change through the magnetic-electric converter.
Patent•
11 Jun 1977
TL;DR: In this article, a horse-shoes shape cooling fins which are piled doubly and parts with a plurality number of bolts are provided mutually in some distance, and fixing them on a generator.
Abstract: PURPOSE: To intend to improve the facility of assembly and the reliability, by assembing horse-shoes shape cooling fins which are piled doubly and parts with a plurality number of bolts that are provided mutually in some distance, and fixing them on a generator. COPYRIGHT: (C)1979,JPO&Japio
29 Apr 1977
TL;DR: In this article, the current capabilities of solid-state microwave power devices useful for CW power amplification in satellite communication systems are described Devices discussed in detail include IMPATT diodes, bipolar and field-effect transistors.
Abstract: : Current capabilities of solid-state microwave power devices useful for CW power amplification in satellite communication systems are described Devices discussed in detail include IMPATT diodes, bipolar and field-effect transistors Also discussed are transferred electron diodes and TRAPATT diodes Topics considered include physical device description, circuit design and performance, reliability, applications, and future trends
Patent•
2 Feb 1977
TL;DR: In order to improve the reliability and the yield of a semiconductor device through cutting the PN junction section of the semiconductor from the air, by means of coating the thermosetting or thermoplastic resin on a wafer, after the forming numerous pieces of semiconductors on the wafer surface section, thereby heating and hardening it.
Abstract: PURPOSE:In order to improve the reliability and the yield of a semiconductor device through cutting the PN junction section offf from the air, by means of coating the thermosetting or thermoplastic resin on a wafer, after the forming numerous pieces of semiconductors on the wafer surface section, thereby heating and hardening it
Patent•
7 Nov 1977
TL;DR: In this paper, the authors proposed a method to simplify the process and increase the reliability by avoiding the immersion of etching solution from pin hole thru the window opening without using the etching process.
Abstract: PURPOSE:To simplify the process and to increase the reliability, by avoiding the immersion of etching solution from pin hole thru the window opening without using the etching process
Patent•
25 Mar 1977
TL;DR: In this article, the authors propose to make the reliability of data higher by providing the means requesting reexecution to prevent misoperation and making simpler the control of data processing unit, when fault conditions are occurred in data or control means, in the data transfer between operational control unit and peripheral I/O.
Abstract: PURPOSE:To make the reliability of data higher by providing the means requesting reexecution to prevent misoperation and making simpler the control of data processing unit, when fault conditions are occurred in data or control means, in the data transfer between operational control unit and peripheral I/O.
Patent•
20 Oct 1977
TL;DR: In this paper, a plurality of patterns for photo-etching in one photomask is provided to perform precisely the alignment of the patterns, whereby the manufacturing yield and reliability of a semiconductor device of minute dimensions are improved.
Abstract: PURPOSE:To provide a plurality of patterns for photo-etching in one photomask to perform precisely the alignment of the patterns, whereby the manufacturing yield and reliability of a semiconductor device of minute dimensions are improved.
Patent•
6 Jul 1977
TL;DR: In this article, the reliability of a resin-sealed semiconductor device with a sealed resin prevented from breaking away is improved by providing an appropriate number of through-holes, which are also proper in size, at the sealing part of a carrier tape and by linking sealing resins arranged on both the side of the tape at both the top and reverse surfaces.
Abstract: PURPOSE: To improve the reliability of a resin-sealed semiconductor device with a sealed resin prevented from breaking away, by providing an appropriate number of through-holes, which are also proper in size, at the sealing part of a carrier tape and by linking sealing resins arranged on both the side of the tape at both the top and reverse surfaces. COPYRIGHT: (C)1979,JPO&Japio
Patent•
11 Jan 1977
TL;DR: An electrical connector capable of completing the connection between a multi-conductor flat cable and a connector in one touch operation without applying soldering or the like and with a high reliability is presented in this article.
Abstract: PURPOSE:An electrical connector capable of completing the connection between a multi-conductor flat cable and a connector in one touch operation without applying soldering or the like and with a high reliability
Patent•
7 Jan 1977
TL;DR: In this article, the A.C. input voltage making circuit of a power supply device capable of raising, reliability by a simplified circuit without dropping a sustaining voltage of a relay when the input voltage is applied.
Abstract: PURPOSE:A A.C. input voltage making circuit of power supply device capable of raising, reliability by a simplified circuit without dropping a sustaining voltage of a relay when the A.C. input voltage is applied.
Patent•
30 Jun 1977TL;DR: In this article, a moving coil type linear motor was used to move an oscillating mirror smoothly at the rotating angle and rotating angular velocity corresponding to target functions, improving the rare of utilization of motor, simplify the device and improve its reliability.
Abstract: PURPOSE: To move an oscillating mirror smoothly at the rotating angle and rotating angular velocity corresponding to target functions, improve the rare of utilization of motor, simplify the device and improve its reliability by using a moving coil type linear motor. COPYRIGHT: (C)1979,JPO&Japio
Patent•
19 Jan 1977
TL;DR: In this paper, a measurement system with a high reliability and a long service life, with the power source not required at the high voltage side and the light emitting element used, was presented.
Abstract: PURPOSE:A measurement system, with a high reliability and a long service life, with the power source not required at the high voltage side and the light emitting element used of a long service life.
1 Jan 1977
TL;DR: In this article, the technique of reaching low temperatures by diluting 3He in 4He has been improved with regard to cooling power, temperature range,3,4 and reliability.
Abstract: Since the experiments of Das et al. 1 , the technique of reaching low temperatures by diluting 3He in 4He has been improved with regard to cooling power, temperature range,3,4 and reliability. Machines have been developed circulating 3He, 4He5 or both.6
Patent•
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22 Nov 1977
TL;DR: In this article, the authors make the pump to elevate the operation properties and reliability by specifying angle among restarting button and pressure pipe connecting part, inthe pressure switch of automatic well pump which has restarting and pipe connecting parts that induce minos pressure to the device for sensing hot water.
Abstract: PURPOSE:To make the pump to elevate the operation properties and reliability, by specifying angle among restarting button and pressure pipe connecting part, inthe pressure switch of automatic well pump which has restarting button and pressure pipe connecting part that induce minos pressure to the device for sensing hot water.
Patent•
23 Mar 1977
TL;DR: In this article, the reliability of die bonding and wire bonding in a plastic-sealed semiconductor device is improved by improving the die-connectivity of the wire-connections.
Abstract: PURPOSE:Reliability of die bonding and wire bonding in a plastic-sealed semiconductor device is improved.