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Quality Analyze of Mobil Units
Sokol, Jaroslav ; Bžoněk, Tomáš (referee) ; Szendiuch, Ivan (advisor)
The management of quality more often penetrate into the sector of trade and becomes the important part of it. In the first part of my work I introduce the service department of Motorola Company . Also there are the most widely used statistic implements of the management of quality, which can be used for the improvement of the processes in the company. The base of the work is the analysis of brakedowns and their causes accured on reading units, repaired in the company. The result of the work is the corrective solution, which caused the rise of internal quality of the product, which was selected as the most problematic product on the basis of statistic control. The proposing solutions should rise internal quality by falling PPM under 20000. The most of proposing solutions were successfully implemented into the use.
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Modern methods for Chip Attach
Nešpor, Dušan ; Novotný, Marek (referee) ; Szendiuch, Ivan (advisor)
The work deals with packaging and die attach issues. The general aim of this investigation is thermomechanical stress between package and substrate depending on different thermal and mechanical properties of used materials. Work contains modeling with program ANSYS and practical tests with testing packages. Determining a place in the solder with the maximal and the minimal stress values and determining of the stress distribution for all materials are the results of this research.
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