JEDEC Trays – “Can I get special colors?”
Is buying JEDEC trays like buying a Model T Ford – you can have any color you want as long as it’s black?
JEDEC Trays are molded from a variety of plastic materials, and we all know that plastics come in almost every color imaginable. Why is it that most JEDEC trays are black? The short answer is: CARBON.
JEDEC trays are used to transport, process, and store many types of components, many of which are sensitive to ESD, electrostatic discharge – getting zapped by static electricity. One of the best ways to make the trays ESD-safe is to mix some form of carbon with the plastic. Carbon is black and, when mixed with plastic, it makes the plastic black. So, the easiest way to make ESD-safe JEDEC trays results in black trays. Trying to change a black, carbon-loaded plastic into some other color requires adding pigment. The pigment has special properties to make it disperse well and those properties are not ideal for trays so you don't want to add too much.
But what if you really don’t want black trays? What if you want different colors for different uses? Maybe you want to use a bright colored tray for parts that failed a test or use different colors to indicate which processes have been completed. Do you have options?
The good news is that there are options. There are a few colors that can be produced in carbon-loaded, ESD-safe plastics. An example is NoStat® C60 whose standard color is blue. The colors available for carbon-loaded plastics are not vibrant, decorator colors but they are definitely not black. For low-temp, non-bakeable trays there are additional options that use alternatives to carbon-loading to get ESD protection. Without the carbon, bright, lush colors are possible. Currently these non-carbon, ESD-safe options are not available for high-temp, bakeable trays.
There are costs for custom colors that may seem high if tray quantities are going to be low. The startup cost to mix a special batch of material, test it, and set up to mold trays is about the same for 10 or 100 trays as it is for 100,000. Standard color trays are more likely to be in stock and cost less. For these reasons, standard colors are used for most low volume applications.
Copies and Counterfeits
R. H. Murphy Co. sells directly to all our customers. If you purchase directly from R. H. Murphy Co. you are assured of getting genuine products at the lowest prices. There are no “Authorized R. H. Murphy Co. Distributors”. Several of our customers resell R. H. Murphy Co. products along with additional products and services, thereby adding value to their product offerings. Customers pay extra, presumably getting additional benefits from the reseller. Please understand that R. H. Murphy Co. has no control over the product after it is shipped and the resellers assume the responsibility for product condition and performance. This is particularly important when the reseller is also a recycler.
Copies of R. H. Murphy Co. product do show up from time to time. These may use low cost materials with inferior mechanical, electrical, and thermal properties. It is unfortunate when companies put their valuable components at risk of damage when losses can quickly overwhelm any potential savings promised by cheap copies.
Counterfeit products are similar to copies except they are disguised as genuine R. H. Murphy Co. products. We have seen poor quality counterfeits with duplicated markings. But the results have been catastrophic for customers who used what they thought were R. H. Murphy Co. high-temperature JEDEC Matrix Trays purchased at a “better” price.
Here is an example of a tray sent to us by a company asking why their “R. H. Murphy Co.” tray melted. They had purchased components that were shipped to them in trays that looked like the real thing, except they were underweight and the material was too shiny. Upon examination, the trays were marked just like R. H. Murphy Co. trays but with some misspelled engraving. When baked, the trays melted, damaging the expensive components. That’s not a great way to save!
How can you avoid these problems? Don’t settle for copies. If you are purchasing directly from R. H. Murphy Co. there are no worries. If you are getting trays or carriers from a reseller or component supplier, you can ask for confirmation. Work with companies you trust and don’t get mislead by false claims of savings. R. H. Murphy Co. has succeeded for more than 30 years by protecting the value your product. If you can get by with a low cost option, we will work with you to find the best option. But remember the wisdom of the ages, if it seems too good to be true, it probably is!
R.H. MURPHY UTILIZES NOSTAT® COMPOSITE POLYMERS TO PROTECT SENSITIVE ELECTRONIC ICs AND COMPONENTS
R.H. Murphy Company, a recognized innovator in the field of IC and electronic component handling and protection, uses NOSTAT® Composite Polymers to manufacture JEDEC matrix trays, carriers, handling and packaging products with superior ESD and mechanical protection. Formulated with electrically conductive additives, the family of NOSTAT® Composite Polymers safely shield sensitive devices from electro-static discharge and tribogeneration. Reinforcing elements in NOSTAT®Composite Polymers maintain flatness and dimensional accuracy while increasing strength and toughness, giving R.H. Murphy Company products outstanding precision and performance in automated and manual processes, shipping, and long term storage.
NOSTAT® Composite Polymers range from low-temperature formulations for use in applications up to 60°C to bakeable formulations rated to 180°C. Unlike the short-term ratings applied to some discount products, these temperature ratings are real-world values and R.H. Murphy products will not warp or distort at rated temperatures. NOSTAT® Composite Polymers are non-sloughing and do not contain carbon powder (a common compromise in low-cost trays) so they do not shed conductive particles that can harm electronics and contaminate solder joints.
R.H. Murphy Company offers a wide range of standard and custom products manufactured of NOSTAT® Composite Polymers. Included are the many open-tooled trays and carriers for PGA, BGA, TO and many other surface mount and through hole devices. Notable are the many custom trays manufactured through the RAPIDTRAY® Program, offering low- and moderate-volume custom JEDEC matrix trays with short lead times, low minimum quantities, and no tooling charges.
About R.H. Murphy Company
Founded in 1982, R.H. Murphy Company has been an industry leader, inventing and supplying much needed products to support manufacturing, testing, and shipment of semiconductor devices, integrated circuits, sensors, and a growing range of electronic components. R.H. Murphy Company combines exceptional creativity with knowledge and expertise in ESD management, industry standards, and automation technology which have been applied to the design and manufacture of polymer products generating numerous U.S. and international patents. For more information contact R.H Murphy Company, Inc., 3 Howe Dr., Amherst, NH 03031; Call 603-889-2255; Fax 603-889-3129; email [email protected]; or visit www.rhmurphy.com.