نتایج جستجو برای: economic statistical design esd
تعداد نتایج: 1574126 فیلتر نتایج به سال:
In this paper we discuss our development of the Emotion Sampling Device (ESD). We introduce the major properties of the device and advocate the need for a tool that can be effectively incorporated into product development lifecycles to inform the usability evaluation process as well as other areas of product design. As well as providing an insight into the properties of the ESD and to what exte...
The Silicon Controlled Rectifier (‘SCR’) is widely used for ESD protection due to its superior performance and clamping capabilities. However, many believe that SCR based ESD protection is prone to latch-up, competitive triggering, long development cycles and slow trigger speed. This paper provides an overview of the problems and corresponding design solutions available.
New electrostatic discharge (ESD) clamp devices for using in power-rail ESD clamp circuits with the substratetriggered technique are proposed to improve ESD level in a limited silicon area. The parasitic n–p–n and p–n–p bipolar junction transistors (BJTs) in the CMOS devices are used to form the substrate-triggered devices for ESD protection. Four substrate-triggered devices are proposed and in...
Power SOI (Silicon-On-Insulator) devices have an inherent sandwich structure of MOS (MetalOxide-Semiconductor) gate which is very easy to suffer ESD (Electro-Static Discharge) overstress. To solve this reliability problem, studies on design and modification of a built-in self-anti-ESD diode for a preliminarily optimized high voltage SOI LIGBT (Lateral-Insulated-Gate-Bipolar-Transistor) were car...
هدف از این تحقیق ایجاد پوشش آمورف پایه آهن روی قطعات فولادی توسط فرآیند پوشش دهی الکترواسپارک است. در پروژه حاضر ابتدا دستگاه پوشش دهی الکترواسپارک (esd) ساخته شد و سپس از آن برای انجام آزمایشات پوشش دهی استفاده گردید. در فرآیند esd به سبب ایجاد اختلاف پتانسیل بین الکترود و زیرلایه و تماس لحظه ای، تخلیه الکتریکی به شکل جرقه ایجاد می شود و به دنبال آن فلز از الکترود به قطعه کار منتقل می شود. این...
In recent years, collaborative governance has been used as an innovative approach by government, NGOs, and business for consensus building in the process of policy making and service delivery (Ansell and Gash, 2008, Brown et al., 2006). However, little has been written on the psychological aspects of collaborative governance. What are the antecedents of collaborative decisions? To what extent a...
ESD protection in RF integrated circuits has several considerations: low parasitic capacitance, constant input capacitance, and insensitive to substrate coupling noise. In this paper, a new ESD protection design with polysilicon diodes for RF IC applications is proposed and characterized. The proposed polysilicon diode is constructed by polysilicon layer in a general CMOS process with a central...
Control charts are powerful tools to monitor quality characteristics of services or production processes. However, in some processes, the performance of process or product cannot be controlled by monitoring a characteristic; instead, they require to be controlled by a function that usually refers as a profile. This study suggests employing exponentially weighted moving average (EWMA) and range ...
Traditionally, the statistical quality control techniques utilize either an attributes or variables product quality measure. Recently, some methods such as three-level control chart have been developed for monitoring multi attribute processes. Control chart usually has three design parameters: the sample size (n), the sampling interval (h) and the control limit coefficient (k).The design parame...
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