These don't go on a board but into a tricky mechanical concoction which is three-domensional.
Thanks. Eventually this will be automated but a pick and place machine can't do it. One reason being that the device into which it goes is several feet long and the available sideways clearance is going to be much less than 0.001" with the obstructions being taller than the parts. But the assembly will largely be done by someone else who is an expert in microscopically small designs.