Need Help finding Conductive Adhesive Film

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In summary, the speaker has been repairing devices with ripped off pad connections and is looking for a way to repair them using a conductive liquid or film epoxy. They have found a procedure using copper foil, Kapton tape, and either a conductive liquid or film epoxy, but are having trouble finding a liquid with a long working time or a film that is affordable. They ask the other person if they know of any conductive films that could help. The other person suggests 3M's electrically conductive tapes and films or using copper tape, which the speaker explains they have tried but it moves when heated. They consider soldering the copper tape to the board or using an electrically conductive epoxy, but are unsure if it
  • #1
Devyn@2nd
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I have been repairing some devices but some of them have the pad connection ripped off so I can not repair the USB tips. I have found out how to repair the ripped connection which is the following procedure; Either a conductive liquid or film epoxy is put on the ripped connection area, then the copper foil or ripped off connection is placed on top, and lastly a piece of Kapton tape goes on top of that so it can cure or the film epoxy can be heated up correctly.

Now with this procedure I have a lot of devices so I have to find a liquid epoxy that has a long working time or the film and just cut out the pieces. My problem is I can not find a liquid that will last longer than a couple of minutes. I have been looking for a film that would work but it is either way too expensive or untraceable to find out how much it is to buy it.

Do you know of any conductive films that would be able to help me?
 
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  • #2
I'm not sure exactly what you're looking for but 3M makes a handful of electrically conductive tapes and films.

http://www.tapecase.com/c.318.2.1/3m-electronic-products.aspx

Otherwise, there is always copper tape
http://www.tapecase.com/p.1201.351/3m-1126-3m-copper-foil-with-conductive-acrylic-adhesive.aspx
 
  • #3
An experienced engineer I worked with was surprised that the adhesive on copper tape was conductive. He had been folding it under to ensure contact.
 
  • #4
otto9K9otto said:
An experienced engineer I worked with was surprised that the adhesive on copper tape was conductive. He had been folding it under to ensure contact.

Yes but would it be able to hold on to the circuit board? I tried using copper with kapton and it worked. BUT every time I heated it up the connection moved. I was wondering even if I had epoxy, would it work or just heat the glue up?
 
  • #5
Just a thought, but you could always solder the copper tape to the board if the adhesive won't hold under your temperature...
 
  • #6
mdjensen22 said:
Just a thought, but you could always solder the copper tape to the board if the adhesive won't hold under your temperature...

Well I was asking about the epoxy/film because that would be the only way to get something to stick to the board with conductivity. If there was a connection I could solder the copper to to then I wouldn't be having this problem most likely. Even if I could do the soldering with copper, wouldn't it still move after being heated up. I can't seem to figure out a way for the pad to not move regardless because of the heat that will be on it.

If there is epoxy/ film it could melt and solder does the same.
 
  • #7
What kind of temperatures are you looking at in your application?
All electrically conductive epoxies that I'm finding are rated for 150C (over 300 degrees F)
 
  • #8
mdjensen22 said:
What kind of temperatures are you looking at in your application?
All electrically conductive epoxies that I'm finding are rated for 150C (over 300 degrees F)

Tip temperature is adjustable in the range of 350°F to 850°F (177°C to 454°C) for my soldering iron
 

Related to Need Help finding Conductive Adhesive Film

1. What is a conductive adhesive film?

A conductive adhesive film is a type of adhesive material that contains conductive particles, such as silver or copper, to allow for the flow of electricity. It is commonly used in electronic devices and circuitry to create connections between components.

2. Where can I find conductive adhesive film?

Conductive adhesive film can be found at electronics supply stores, online retailers, or through manufacturers. It is important to ensure that the film is compatible with your specific application and meets any necessary specifications.

3. How do I choose the right conductive adhesive film for my project?

Choosing the right conductive adhesive film depends on your specific project and application. Factors to consider include the type of surface the film will be applied to, the required conductivity level, and any environmental factors that may affect the film's performance. It is best to consult with a specialist or conduct thorough research before making a decision.

4. Can conductive adhesive film be used for non-electronic applications?

Yes, conductive adhesive film can also be used for non-electronic applications, such as in the automotive industry, medical devices, or aerospace technology. It can be used for bonding and grounding, as well as providing thermal or electromagnetic shielding.

5. How do I apply conductive adhesive film?

The application process for conductive adhesive film may vary depending on the type and brand of film. However, in general, it involves cleaning and preparing the surfaces to be bonded, cutting the film to the desired size and shape, and applying pressure to ensure proper adhesion. It is important to follow the manufacturer's instructions and use proper safety precautions during the application process.

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