Robustness validation: Difference between revisions

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Robustness Validation to assess the reliability of electronic components by the specific requirements of the product are compared with the actual "real life values​​". With the introduction of this methodology, a specific list of requirements (usually based on the [[Original_Equipment_Manufacturer | OEM]]) is required. The requirements for the product can be distinguished. In the environmental requirements (mission profiles) and the functional requirements (use cases)
 
=== Mission Profiles ===
[[File: Potato_Diagram.jpg | miniature | robustness for robustness validation based on the comparison of the application requirements, specification and technological limits of the component <ref name="RVHB_SC" />]]
 
The mission profiles describes the loads and stresses acting on the product in actual use. These are, for example, changes in temperature, temperature profile, vibration and working of electrical and mechanical fields, or other environmental factors. It is important to specify the relevant stressors in their nature, intensity and duration of exposure, as well as the mix as closely as possible. With these details are given within specified accuracy projections regarding reliability of application and its components in field applications possible.
 
=== Use Cases ===
The use cases describe the nature and frequency of the operating conditions for which the product is designed. Please make sure that this addition to the normal operation of the possible cases of special operation and emergency operation. This meaning is not permissible, knowingly abuse.
 
=== Robustness margin ===
The lifetimes can be hedged by specific, tailored to the application and the failure mechanism, determined tests. An essential process are [[End of life test]]s From the distance of the requirements on the test results, the reliability and robustness of the device can be determined.
 
=== Product Development ==
[[File: RV_flow.jpg | thumb | upright | Robustness Validation schedule of product development to mass production name="RVHB_SC" <ref/>]]
Today's standard qualification procedures for electronic components, assemblies and components for the automotive industry based on the use of standardized tests at the end of the product development of parts and components. In contrast, Robustness Validation is a process that includes the entire product development process, as well as mass production. The qualification of the components based on the robustness analysis is thus implicitly. With the introduction of robustness validation priorities are defined in the development process again. The aim is to reduce the error's construction during the later phases of the project, which means ''front loading'' measures time in the product development process must be performed.
 
It is necessary, the requirements from the product to the next level of the value chain break down in order to meet specific statements about possible vulnerabilities. Back in the early phases of the project is the knowledge (eg, from knowledge bases [[Lessons Learned]]) resorted previous projects in order to avoid known vulnerabilities documented. Using the analysis of the changes of the new product and the use of different methods, such as [[REM]], [[DRBFM]]'' or'' design reviews, new potential vulnerabilities are identified in order to analyze potential risks arising early and unavoidable. Which are hereby established critical parameters are used for the analysis of the feasibility of the project and flow optionally with the change of the initially established with one product requirements.
Validation occurs in the proof of the functional feasibility and reliability while meeting the functional and the implementation of the specifications are checked.
 
== Other applications of robustness validation ==
In addition to the publication of the Handbook for Robustness Validation for semiconductor devices in 2007 was in [[ZVEI]] in the year 2008, an additional manual <ref> Handbook for Robustness Validation of Automotive Electric / Electronic Modules, ZVEI, 04/2008 published </ref> in which this procedure is described for the development and qualification of electronic control units in automobiles. There are other activities in the field of sensors and electronic systems in the vehicle.
 
== Weblinks ==