3M tape with anisotropic z-axis electrical conductivity
A while back I invested in 3M because it's a company that makes so many amazing and industry leading products and I thought they'd do well.  A couple years later and the stock is just lagging.  I guess they're dragged down by their environmental lawsuits these days.<p>As a human, I'm appalled at their environmental track record but as an engineer, wow they really do so many things so well.