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extend to both outer surfaces of the finished multilayer board) are plated before the layers are laminated together. FR-4 epoxy glass is the most common insulating substrate. Flexible-Rigid printed circuits are boards that bring in a Services unique combination of superior technology a flexible printed circuit made of a thin polyamide of 0.1-0.3 mm

fixing the electronic components in designated locations Services on the outer layers by gluing. provides reliable electrical connections between the component terminals in a controlled manner according to a predetermined scheme. Printed circuits are widely used in many fields: Consumer goods Military Aerospace Industrial Medical Naval The unprecedented development

power return. For microwave printed circuits, transmission lines can be laid out in a planar form, such as stripline or microstrip, with dimensions carefully controlled to ensure consistent impedance. In RF and fast switching circuits, the inductance and capacitance of the printed circuit Services board conductors become