Important factors to consider when designing FPC for space applications

In satellite applications, flexible FPC has several advantages over rigid PCBS.  The characteristics of flexible FPC make FPC the best choice for space applications.  FPC for space applications operates under very harsh conditions.  It is important for designers to consider the following points before embarking on flexible FPC design for space applications.  

Working temperature  

Although the FPC is not directly exposed to spatial conditions, the DESIGN of the FPC should be suitable for the internal environment of spatial applications.  The choice of materials for this FPC becomes critical.  For space applications, materials with operating temperatures higher than 120°C should be selected.  

Limit is deflated  

The use of FPC in a high-pressure vacuum environment may release gases trapped in the FPC during manufacturing.  This gas leak can condense in other parts of the device.  During operation in a high-pressure vacuum, heat applied to the FPC forces the gas out of the FPC, which is called degassing.  Degassing can be minimized by selecting materials with good heat resistance for the FPC design.  

Sustained orbital collision  

The satellite moves around the earth in a circular orbit.  In orbit around the Earth, collisions between other celestial bodies are likely.  The FPC should be able to withstand these tiny collisions.  For this reason, flexible FPC should have a high bending capacity.  Flexibility/bendability is an important factor to consider when designing flexible FPC for space applications.