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Circuit Design = Science + Art! Designers need a skilled "gut feeling" about circuits and related analytical techniques, plus creativity, to solve all problems and to adhere to the specifications, the written and the unwritten ones. You must anticipate a large number of influences, like temperature effects, supply voltages changes, offset voltages, layout parasitics, and numerous kinds of technology variations to end up with a circuit that works. This is challenging for analog, custom-digital, mixed-signal or RF circuits, and often researching new design methods in relevant journals, conference proceedings and design tools unfortunately gives the impression that just a "wild bunch" of "advanced techniques" exist. On the other hand, state-of-the-art tools nowadays indeed offer a good cockpit to steer the design flow, which include clever statistical methods and optimization techniques.Actually, this almost presents a second breakthrough, like the introduction of circuit simulators 40 years ago! Users can now conveniently analyse all the problems (discover, quantify, verify), and even exploit them, for example for optimization purposes. Most designers are caught up on everyday problems, so we fit that "wild bunch" into a systematic approach for variation-aware design, a designer's field guide and more. That is where this book can help! Circuit Design: Anticipate, Analyze, Exploit Variations starts with best-practise manual methods and links them tightly to up-to-date automation algorithms. We provide many tractable examples and explain key techniques you have to know. We then enable you to select and setup suitable methods for each design task - knowing their prerequisites, advantages and, as too often overlooked, their limitations as well. The good thing with computers is that you yourself can often verify amazing things with little effort, and you can use software not only to your direct advantage in solving a specific problem, but also for becoming a better skilled, more experienced engineer. Unfortunately, EDA design environments are not good at all to learn about advanced numerics. So with this book we also provide two apps for learning about statistic and optimization directly with circuit-related examples, and in real-time so without the long simulation times. This helps to develop a healthy statistical gut feeling for circuit design. The book is written for engineers, students in engineering and CAD / methodology experts. Readers should have some background in standard design techniques like entering a design in a schematic capture and simulating it, and also know about major technology aspects.

Friedrich Wilhelm Weber beschreibt in diesem Epos den Endkampf zwischen den christlichen Franken und heidnischen Sachsen zu Anfang des 9. Jahrhunderts. Er verknüpft geschickt historische Figuren in einer fiktiven Geschichte. Hauptfigur ist der Sachse Elmar der die fränkische Hildegunde liebt. Die Hauptbotschaft, die Weber mit seinem Epos vermitteln möchte, ist die der Überwindung von Zwietracht und Gewalt durch Toleranz und Nächtsenliebe. Eine Botschaft, die auch heute noch bedeutsam ist. Das Epos besteht aus 25 Gesängen. - Summary by lorda

Philosophy is the search for a comprehensive view of nature, an attempt at a universal explanation of things. It is both the summary of the sciences and their completion; both general science and a specialty distinguished from science proper; and, like its elder sisters, religion and poetry, forms a separate branch among the manifestations of the human mind. The different sciences have special groups of facts for their subject-matter, and seek to discover the causes of these phenomena, or to formulate the laws according to which they are produced. In philosophy, on the other hand, the human mind endeavors to rise beyond such groups and their particular laws, and to explain the wrorld as a whole, or the universal fact or phenomenon , by the cause of the causes, or the first cause. In other words, it attempts to answer the question, Why does this world exist, and how does it happen to be what it is? (Summary by Introduction)