Azdasht, G.G.AzdashtLeutenbauer, R.R.LeutenbauerOppermann, H.H.Oppermann2022-03-082022-03-081999https://publica.fraunhofer.de/handle/publica/304211NOVELTY - The circuit board has at least one flexible section so bent that the cover and base plate are mutually opposite and contain between them a spacer. The circuit board forms an intermediate layer, and comprises several flexible sections so bent that the cover, base plate, and the intermediate layer(s) form a laminate. The spacer contains a first component between the cover and intermediate layer, and a second component between the intermediate layer and the base plate. USE - For ball grid array packages, surface mounted device components, etc. ADVANTAGE - Simple, low-cost contacting on top and bottom in standard raster.de608621patent1997-19744295