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Theme of the month - VIAS
In August Circuit-Expert Blog will focus on a specific element of printed circuits: vias. We will summarize characteristics of buried, blind and plugged vias, we will describe vias types according to IPC norm and conditions that need to be met already at circuit design stage to be able to produce it with blind vias. We will also describe further devices in machinery park and write about some industry news like Internet of Things, topic that still not losing its popularity. Read on to find out more & like as on FACEBOOK ! ...
Parameters of printed circuits _ ELECTRICAL
Apart from the basic and temperature parameters listed above, laminates may also be described with electrical parameters (apart from CTI mentioned above), water absorption resistance and CAF. Electrical characteristics: From the electrical point of view laminates are mostly described in terms of signal losses. They become very significant when used in high-frequency circuits. The first of them is the dielectric constant (Dk), i.e. relative permittivity of the material with respect to permittivity of void. In typical laminates used for production of electrical circuits (e.g. FR4) it is relatively high (above 4) and l...
Parameters of printed circuits _ TEMPERATURE
For protection against the adverse influence of elevated temperatures laminates with appropriate temperature properties should be used for producing printed boards as they adapt both to the assembly process and to the conditions in which a ready-made device operates. Definitions of the most important of them have been presented below. They should be taken into account at the stage of device design. Parameter Tg Parameter Tg determines the limit temperature of the laminate passing from a hard condition into a soft condition (vitrification temperature), which results in the deterioration of mechanic properties. The laminate become...
Electric cars on Polish roads, a tale of the modern automotive industry
To the question that until recently kept appearing regularly in specialized press i.e.: Does electrification in European automotive industry accelerate? there only remains one correct answer: undoubtedly yes. On the one hand information on increasing number of cars with electric drive in specific European countries keeps flowing, on the other hand new initiatives preparing us for common use of these cars on European roads keep emerging. The majority of data concerns our neighbours. At the end of 2016 electric cars were the most popular in: Norway – 124.7 thousand, the Netherlands – 113.6 thousand, France – 110 thousand, UK – 89.1 thousand and...