Hot Bar Soldering of Flex to Hardboard vs. ACF

I am working on a new product that has a flex circuit attached to an 8 layer motherboard. There are 25+/- connections. I am investigating hot bar soldering vs ACF (conductive film) to make the attachment. I am looking for literature/papers/experiments/experience of others to speed up the investigation/learning experience. If you know of papers or have direct experience, please pass the information on to me.

reply »