Baskılı devre teknolojileri kullanılarak PSA test cihazı tasarımı

Printed circuit boards are such plates made of different insulating materials that they feature copper lines on the surface in order to integrate electronic circuit elements and contain holes coated inside with conductors between the surfaces. Those having only single surface can be produced unprofessionally using flat iron whereas those with multilayer require professional installations. Pcbs designed and manufactured employing the old technologies are so big and correspondingly enlarge physical dimensions of the devices designed.Multilayer printed circuit boards allow us to design cards in small dimensions. Placing electronic component both on upper and lower layers ensures flexibility in design. It is also possible to create capacitive effect inside the inner layers of high density cards. This offers an opportunity to reduce number of capacities occupying excessively more space in design. Transition holes coated inside with conductors must not develop a short-circuit with the copper lines of other layers. In order to prevent this, printed circuit board manufacturers developed such conceptions as blind and embedded holes. Blind hole is the one that starts from the uppermost or lowermost layers, advance several layers and end there. Embedded hole is a conducting hole that starts from one inner layer and extends to another, and can be interfered in no way. Embedded holes, as in the case of blind holes, also provide flexibility in design.Bisens device, is a medical device that can determine pathogenic microorganisms, identify toxin, and detect biosign of cancer. In this dissertation PSA test device's mainboard was redesigned by using new pcb technologies.Rigid, double sided pcb made of through holes has been designed previous version of the mainboard. Old technology employed in the production of printed circuit boards and choice of big components and footprints caused the printed circuit board to become excessively large, and in turn, device enclosure became bigger. As a result, a prototype product much bigger than it was thought it would be, was obtained. Aim was to reduce printed circuit board size, introducing improvements in the mainboard of the medical device mentioned in this thesis study. Multilayered blind holes have also been employed in this design for such purposes.