What's Z-axis on this tape? is it thickness?
Yes, the z axis is the thickness direction.
3M tape with anisotropic z-axis electrical conductivity
21–30 of 146 posts
Re: 3M tape with anisotropic z-axis electrical conductivity
#22A 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. As a human, I'm appalled at their environmental track record but as an engineer, wow they really do so many things so well.
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Re: 3M tape with anisotropic z-axis electrical conductivity
#23A 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. As a human, I'm appalled at their environmental track record but as an engineer, wow they really do so many things so well.
3M is an awesome company. I've worked with them to produce custom adhesives for us ($MM orders). Their products have exceptional quality, reliability and performance. What you see in a datasheet is what you're going to get (or better).
3M's consumer products (Scotch, etc.) are also excellent. Anytime you use 3M products, you don't need to worry. I like that consistency and it brings peace to the mind. I'll pay more for it.
Japanese equivalent is Nitto: https://www.nitto.com/us/en/products/
Re: 3M tape with anisotropic z-axis electrical conductivity
#24What's Z-axis on this tape? is it thickness?
It's conductive only in the z-axis. So you can, for example, tape components to your circuitboard instead of having to solder tiny pieces.
I think they were asking… what is the z-axis? What’s the canonical co—ordinate system for tape? You just repeated that it’s conductive in the z-axis.
Re: 3M tape with anisotropic z-axis electrical conductivity
#25What does that mean?
You could (in theory) put the tape over a circuit board and place components on tape and the circuit would function. It would not short circuit because it only conducts on the z-axis (up and down) not between things on the surface.
I take it the tape would go in the middle between the circuit board and components?
Re: 3M tape with anisotropic z-axis electrical conductivity
#26What does that mean?
You could (in theory) put the tape over a circuit board and place components on tape and the circuit would function. It would not short circuit because it only conducts on the z-axis (up and down) not between things on the surface.
Perfect for easily removable/replaceable surface mount components (as long as there is no G/shock requirement), but even that could be mitigated with a pressure plate over the components.
Re: 3M tape with anisotropic z-axis electrical conductivity
#27The prowess of materials science in companies like 3M and Dupont never ceases to amaze me. Just when I think I've seen it all with fiberglass tape and kapton tape...
Their "prowess" saw DuPont give cigarettes laced with new toxic chemicals they made to their employees to test the chemicals effects.
Every human on earth has Dupont chemicals in their blood that will never go away, but accumulate over the course of our lives. These are "forever chemicals" that never break down. When you die you pass them on. They are in the animals you eat, in the beverages and water you drink, they are in the vegetables you eat. Your descendants a millennium from now will be eating them still, plus all the new ones produced between now and then.
This is the result of American capitalism and the worlds most corrupt banana republic legislature where bribery is so bad they made it legal.
Those absolutely evil bottom dwellers at Dupont you admire so much produce hundreds of toxic chemicals, and your bribed government allows them to produce and market these chemicals and spread them around the world without consequence.
Fuck Dupont and Fuck 3M. They are poisoning the planet.
Re: 3M tape with anisotropic z-axis electrical conductivity
#28[deleted]
Re: 3M tape with anisotropic z-axis electrical conductivity
#29What does that mean?
You could (in theory) put the tape over a circuit board and place components on tape and the circuit would function. It would not short circuit because it only conducts on the z-axis (up and down) not between things on the surface.
I don’t quite get how that’s useful.
Re: 3M tape with anisotropic z-axis electrical conductivity
#30A 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. As a human, I'm appalled at their environmental track record but as an engineer, wow they really do so many things so well.
3M is an awesome company. I've worked with them to produce custom adhesives for us ($MM orders). Their products have exceptional quality, reliability and performance. What you see in a datasheet is what you're going to get (or better). 3M's consumer products (Scotch, etc.) are also excellent. Anytime you use 3M products, you don't need to worry. I like that consistency and it brings peace to the mind. I'll pay more f…
Not just that, but (at least when last I needed this specific service) they had a great phone support system where you could call up and say "I need an adhesive to connect $A to $B and have these curing properties and this strength" and someone would go through their database and make a list for you.
Most companies with such a huge array of subtly different products are nowhere near so clear.