In the recent history of fuel cell design, particularly in PEM fuel cells we are observing a tentative of size, weight and complexity reduction to improve the possibility of integration in the transportable devices.The traditional concept of fuel cell stacks fabrication is an obstacle in the scaling of this system. The package scaling role is the most important in the tentative of dimension and weight reduction. Ours contribution, coming from the achieved experience of prototyping and fabricating of a traditional PEM fuel cell using a microfluidic system and porous electrode fabricated on polyamide substrate, consist in the creating a breakthrough in the traditional fuel cell stack (that use the glowing the two stack by using the proton exchange membrane) fabrication, projecting a new Single Bipolar Multi-function Plate in which are created the delivery system for gases (hydrogen and oxygen) or for liquid (Methanol), the two porous …