Corrosion Intercept Sample (with marking Type CI Bag, Thickness 2 mils, Color copper):

What are its applications? For which current bag does it compete against? For which product does it apply?

Corrosion Intercept (CI) was developed by Lucent Bell Labs for corrosion protection. The main application for CI is for the inside of the RIBS products and for the CI stretch film. Its only other use is when color is an issue – we sell over 1,000,000 guitar string bags per month made from CI – this was chosen because they liked the color. The only other reason to choose CI is that at 3 mils you can still have some contact clarity. Even at 2 mils (.002” thick) the Static Intercept (SI) is pretty opaque. The disadvantage of CI is that it has no real electrical properties. We do have a new product that we just developed that adds antistats to the CI resin to make an antistatic CI product. Also, the antistatic / anti-corrosion translucent bags may have some good markets going after pink poly products.

Thought that our bags contain both static and corrosion intercept into one bag because in this bag, I assume that it only contains corrosion intercept?

Corrosion Intercept provides only corrosion protection. The inside of the RIBS bags all contain the Corrosion Intercept (CI) resin because CI is cleaner than SI, also a little less expensive. Static Intercept starts with Corrosion Intercept then about 30% more copper is added. The added copper is in the form of copper oxide (brown), which shifts the color to brown and forms the copper oxide semiconductor that Static Intercept is. It is interesting to note that when CI is co-extruded with conductive carbon in the RIBS structure that the two materials electrically couple producing the same effect as the Static Intercept material.

MVTR RIBS (Silver Color):

What does MVTR mean?

MVTR stands for “Moisture Vapor Transmission Rate”. It is the rate at which moisture passes through a material. It is the main measurement for moisture barrier bags, so we thought that for our moisture barrier bag we would incorporate it into the product name.

For what electronics or semiconductor products do we target it? Is it meant to replace AMBB?

Anything that has contamination or moisture sensitivity is an ideal candidate for our bag. Here is where we need to discuss the current misconception in electronics packaging.

Only two electronic materials are really hydroscopic (water loving – absorb moisture); these are nylon and ceramic. Ceramic ships explode if they are allowed to pull up moisture and then are wave soldered. The moisture inside the chip cannot escape in time producing the chip to explode. Other than these two basic materials, the other things we use in electronics are not really absorbing moisture. However, there are lots of moisture barrier bags used by these people. People mistakenly think that moisture and contamination go hand in hand, but they do not. Companies use moisture barrier bags when they are actually concerned about corrosion and contamination or yield and solderability preservation. Intercept to the rescue. We can provide this protection without having to use desiccants in most cases and without having to vacuum pack. Some desiccant can be used to knock down the initial moisture trapped within the bag (Intercept will remove corrosive gases, atmospheric pollution, but will not remove moisture), however the key is to seal the bag securely or to roll down numerous times and tape close (with a clear case sealing tape – no tapes with paper backing or gummy or natural rubber adhesives – all contain high levels of sulfur). The Intercept option then can allow them the faster, easier standard heat sealing option (much cheaper sealing equipment versus vacuum sealed and much quicker). The Intercept products also provide:

• Extremely low ionic contamination – contamination kills electronics, so protect against it.
• Permanent ESD protection – humidity independent
• Low contamination – particles (things are getting smaller, why not get the added benefits of clean packaging – it will probably increase your yield)
• Solderability preservation – no corrosion, no oxide layers
• THE RIBS MVTR bag also provides the moisture barrier protection required for the most sensitive devices.
• Key targets: Wafer tubs / dip tubes / carrier reels / bare boards

Does it contain Static and Corrosion intercept into one?

Yes – it actually just has the Corrosion Intercept on the inner layer, co-extruded with conductive carbon. The conductive carbon provides enhanced shielding and also absorbs organic gases and contaminates (carbon-based gases that do not react with metals – these gases leave sticky surfaces behind. They are non-corrosive, but they do add contamination and can attract and hold dust on the surface of a product).

The outer bag color is silver (aluminium property?) while the inner is copper to carbon black in color. Any specific feature for these colors?

  • Outer Layer – Metallized Polyester (a heavy layer of Aluminum on 92 gauge Polyester)
  • Inner Layers – Bonding layer to the polyester is a metallocene resin for increased bonding core of the PE laminate is conductive carbon (to absorb organics and to couple electrically with the CI layer) – it also enhances the shielding inner layer is Corrosion Intercept — reacts with and permanently neutralizes corrosive or reactive gases (atmospheric pollution). The CI layer also provides the permanent, humidity independent ESD Protection, non-charging, non-sloughing and non-contaminating surface. The CI resin is extremely clean – very low ionic contamination. The colors are really just the colors that they are – it is quite striking from a marketing viewpoint, but the colors are merely functional.

Ribs Media Bag (color black form the outside and copper black inside):

For which specific semicon/electronic product do we target it? Does it have anti static property and corrosion property rolled into one?

Yes – permanent ESD protection, humidity independent, clean level 100 or better on the inside (even straight off the production line without post cleaning or clean room packing), and full corrosion protection. The material is also the cleanest antistatic and the cleanest anti-corrosion material on the market, bar no product.

Can all the products be heat sealed?

Yes – all products can be heat sealed on std equipment.

Can the customer order the products with zip lock?

Yes – all bag products can be ziplock.

Can all of the products be re-used by the customer?

Yes – all products can be re-used.

Finally for the bags, do all of them provide Static and Corrosion protection at the same time?

With the exception of Corrosion Intercept, which only provides corrosion protection.

Or the customer need to inform us if they need both static and corrosion protection from our bags?

Most customers do not know that they need corrosion protection. Corrosion can show up as:

  • Solderability issues (cannot solder through corrosion or oxidation)
  • Lead free solder issues (if you are going lead free – the bare boards need to protected with Intercept, otherwise you will have yield issues due to corrosion and oxidation)
  • Contamination
  • Yield loss – corrosion weakens parts making them more susceptible to ESD damage. This has been proven in Bell Labs testing.
  • Latent defects are often the cause or direct result of corrosion. Lucent Bell Labs studied many failures in the field – found most “ESD” damage in the field to have corrosion at the defect site, indicating that corrosion helped cause the ESD failure, or that corrosion was the cause of the failure.
  • Discoloration

It is interesting to note that the average level of H2S in the US is about 8 ppb (parts per billion). In Shanghai, that jumps to 800 ppb. Inside facilities in Souzhou, that level jumps to 1.5 ppm (parts per million). Asia has much higher levels of corrosive gases – parts need to be protected from the very early stages. Corrosion cannot be undone except by cleaning, very strong fluxes (which clean the surface, preparing an oxide free surface to bond to). At 10 ppm, you reach the AQL for H2S. This high level of sulfur in the air is why more companies are experiencing yield and contamination issues with products coming from Asia.

Corrosion Intercept with Polyester:

Does this mean that both Static and Corrosion Intercept Technology can be formed into other customer requirements such as tote boxes and other plastic forms?

Yes, just let us know the application, and we can work with you. We also have coating that can be made in New Zealand that can be coated onto cardboard. We have already sold Siemens in Europe this concept. We are also working on impregnating polyurethane foam with this coating – makes a permanently antistatic foam with great anticorrosion properties.

There is a claim in one of the news bulletins of Intercept that I have read that this product can be reused. Is this claim confined only to one specific product or does it apply to all of the products with static and corrosion intercept?

Pertains to all products, though most people do not re-use moisture barrier bags. They are generally 1-trip products. However, with our new zipper closure RIBS MVTR and RIBS Shielding bags, companies can send their sensitive components and parts sealed above the zipper, the customer can cut open the bag above the zipper and be able to put unused components or parts back into the bag for continuation of the full protection. This will also allow for easy re-use of the products.

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