Ultra Low Weight Spacer for PCB to PCB Interconnections

Nowadays, in many applications, limited space and weight budgets are two important variables that the designer should handle. Many fields such as aerospace or portable electronics require extremely small interconnection solutions, which go behind standard cables and connectors. To overcome this problem, we present the design, fabrication, and testing of an ultra-low-weight spacer for PCB to PCB interconnections. The novelty of this work is that this paper presents an easy and reliable solution capable of creating strong electrical and mechanical bonding at the same time. The extremely limited weight of the spacer (74 mg) and the relatively small dimension (5 mm × 5 mm) make this system a possible solution for applications requiring minimal space and weight.