Medic Archive

I currently have 2 droids with medical modules which I really like. However, I asked my local droid engineer if he could put a chem crafting module on it and he said he didn't see it in the tree! Now I looked myself and didn't see it either. I assume this is possible? Anyone happen to know where at in the tree it is? Or possibly the actual name of the module? I could really use one of these!

Thanks!