460 likes | 594 Views
Best Practices for Collecting, Maintaining, and Analyzing Data for RoHS Compliant Electronic Components. Rich Turner Vice President, Enterprise Sales PartMiner Information Systems. Welcome to RoHS!!.
E N D
Best Practices for Collecting, Maintaining, and Analyzing Data for RoHS Compliant Electronic Components Rich Turner Vice President, Enterprise Sales PartMiner Information Systems
Welcome to RoHS!! • It’s taken nearly five years, three different committees and geographies, and more acronyms than the Federal Government, but the reduction of hazardous substances laws are well underway • In Europe we have RoHS and WEEE – focusing on 6 hazardous substances – scheduled for enforcement in July 06 • In China we have similar legislation regarding lead-free – with only toys and consumer electronics being exempted • In the US, we have both California and Massachusetts considering legislation virtually identical to RoHS • The standards for JIG-A (basically RoHS) are set to release shortly, with JIG-B and other standards due to follows
How does RoHS affect your operations? • While there are six currently “banned” substances, only lead is routinely found in electronics manufacturing • The issue goes far beyond “lead-free:” • Tin, the current lead replacement, requires different soldering processes • The peak reflow temperatures of systems handling tin soldering are higher than those required for lead • Materials like plastics – also very prevalent in electronics manufacturing – are highly susceptible at higher temperatures • And it won’t just stop with lead – the concentration of relatively rare elements in discarded electronics remains a large concern • And if you DO ship to Europe and AREN’T compliant, Sarbanes/Oxley may require management to disclose this as a risk to business!! s
So if it’s just Tin vs. Lead, isn’t that an easy substitution? • Answer, sadly, is no • Components providers (some saddled with large quantities of leaded parts) haven’t made the lead-to-tin transition particularly easy • RoHS Compliance is regulated – meaning the burden of proof is squarely on the manufacturer • If a BOM contains 100 parts (average BOMs range between 100 and 200 parts), that can be 100 different RoHS challenges • Up-front research and documentation will be key to sailing through this and future RoHS or materials considerations s
As a manufacturer, what do you need to know? • RoHS = Yes, lead-free = Yes – ultimately these don’t help you very much • Components providers have been tasked with providing full material content and by 7/06, roughly 70% of in-production parts will provide full disclosure • Other manufacturability criteria like peak reflow temperature and moisture levels are also critical • For any products that need to comply to RoHS, a “paper trail” is necessary – in particular, there is a specific Compliance document for each RoHS-compliant component s
Myth Europe will relax the 7/06 deadline I’m taking a RoHS-5 exemption – I’m OK I’m in Defense – we’re not affected I’ll just get an equivalency list from my suppliers Reality Don’t count on it – remember, part of this is trade-based Lead exemptions are time-limited – only buy you some breathing room If you can’t get leaded parts, you are affected Supplier responses to RoHS are all over the place – very few offer a direct one-to-one maps Debunking some common Myths…
OK – I’m convinced – now just what do I need to collect? Ideally, you need to collect 5 different things to make the transition to RoHS glitch-free: • Material content disclosures • Manufacturability information • Material Content Datasheets • RoHS Roadmap Documents • RoHS Compliance Certificates Remember, RoHS is component-specific – you need this information for each component in your assembly or BOM – or manufacturer in cases where a provider has made a global RoHS commitment s
That’s a lot of information – how do I find it? Component manufacturers – each is required to provide this information – however, up to 30% of current components may still be undergoing the certification process on 7/06 Component distributors – both Arrow and Avnet sell their own database solutions (the issue is they obviously focus on their own line cards so options will be limited) Database software providers – there are a number of competitors – the major players besides the distributors include: • PartMiner Information Systems • IHS Information Systems • Total Parts Plus • Silicon Experts • Q-Star s
Do I have to do this myself? A number of companies provide services that will analyze BOMs and even find RoHS-compliant parts for non-compliant systems The major providers of such services include: • PartMiner Information Systems • Total Parts Plus • Enventure Technologies The issue with this is that replacement options are not always one-to-one, so you must have component engineering involved in this process A number of contract manufacturers offer similar services for their customers – be cognizant that a failure to pass customs for RoHS compliance will be your problem, not theirs s
Taking a look at what to collect and where you may find it I’m going to show you the various content declarations, certifications, etc., that are provided for components I’ll use the PartMiner CAPS products to demonstrate this When selecting any such solution, you should ensure that: • Information collected is what the manufacturers provide (such as CAPS) • The solution is web-based since this information (right now at least) changes rapidly • The solution provides an easy way to identify compliant and non-compliant parts • The solution provides alternatives for non-compliant parts • The solution provides easy links to official documents (such as certification PDFs) s
Material Content Disclosures Basically, this is an element-by-element description of the product It should include: • Symbols for included substances • Total used weights for each substance • How the substances are used s
Anatomy of a PCB Key terms for RoHS compliance and manufacturability are Lead-Frame finishes and Peak Reflow Temperatures Unfortunately there are not standards for how these details are presented – each manufacturer has a slightly different “take” s
Material Content in PartMiner Every component in the CAPS database has links to material content: s
Material Content Details Below is an example of a Material Content page for a part in PartMiner’s CAPS database s
Material Details… Here’s one that is RoHS Compliant: Along with full Material Content Details… s
Note what’s not in this Certificate….. No Part Numbers!! s
Recommendations This is likely to be as confusing to a Customs inspector as it is to you For each assembly or BOM, prevention is the key: • Pull a copy of each material content page • Pull a copy of each roadmap • Pull a copy of each certificate • PDFs are fine also, but take copies of them • Put this material in a folder carrying the model of the BOM or assembly to which they relate Why? If you’re audited, this just turned a week-long research project into a 10-minute ones
Another Pitfall – Corporate Parts (AVL) It is typical for medium to large manufacturers to establish an AVL where they have several equivalent parts for a given component This was fine pre-7/06 – but now equivalent is no longer equal First, ensure that each MPN in a corporate AVL scheme is RoHS compliant Second, perform the same research you did for the individual parts for each “equivalent” MPN Third, keep that information along with the rest of your RoHS data for that BOM or assembly s
One CPN = Multiple MPNs In addition to the Material Content screens I showed you from PartMiner’s CAPS Expert research tool, we also provide a broader-scale BOM and database management tool that is designed to fit-in to existing ERP and PLM solutions I am going to show you an example from this tool regarding CPNs In the example that follows, we have “bounced” the equivalent parts being shown for this company’s particular CPN against our database to provide specific details about each “equivalent” part Many of these AVL and CPN schemes were developed long before WEEE and RoHS became a reality Therefore, it is critical to ensure that the compliance regulations are met by every substitutable MPN in your CPN database – otherwise, you may be building a non-ROHS assembly! s
Now to the bigger question – if my components aren’t RoHS compliant, then what?.... • Simply, you will need to find a suitable alternative • There are a number of ways to do this: • Contact the manufacturer – note that this is time-consuming and in many cases, there is not a one-for-one replacement • Utilize a BOM-scrubbing service – this will cost you $7-10 per replacement part (there is usually a minimum charge also) • Utilize a component database package to identify alternatives s
Single-Pass Solutions Example would be PartMiner’s CAPS Expert Allows extensive research on a part-by-part basis Permits users to model a given part based on parametrics – i.e., list desired features and return results Costs less than a list-based solution – good for ad-hoc replacements List-based Solutions Example would be PartMiner’s CAPS Connect Allows users to load a list or BOM and find all replacements in a single “swipe” Many of these products can integrate to databases besides their own component data Generally a 50% premium over a single-pass research product – justifiable for handling larger numbers of products and BOMss Software solutions offer several paths to find replacements For software/database products, you generally have a choice between single-pass and list-based solutions
For either type of solution, you’ll rarely find one-for-one alternatives • Manufacturers have chosen a bewildering number of ways to provide RoHS-compliant products: • Some have simply chose to “mark” lead-free or RoHS on an existing part • Some have released new parts to provide RoHS compliance • Some have discontinued parts and introduced new ones that are RoHS-compliant • Others are pointing their customers toward new parts that are functionally equivalent but not direct replacements • Therefore, a good tool may return many options s
This is an example of CAPS Expert’s Part Replacement data • I’ll search for an EPROM – currently, I’m using a Microchip Technology part that is not RoHS • I simply query the database for alternatives to their part (in this case, MPN 93C46B) • CAPS Expert shows both the original part and the replacement – you’ll also see that the parameters are not exactly identical… s
If I scroll down, here are the differences between the two parts: s
Using a different part, here is an example of numerous results…. s
I would like to show you how you can deal with a list or BOM… • In this case, we’ll show you what a list-based tool can do - I’ll be using PartMiner’s CAPS Connect • I will run an entire BOM through this tool, using a “one-click” RoHS Compliance tool: • The system will compare the existing parts against the database and identify any non-compliant parts • The system will provide a list of alternative components that are RoHS compliant • The system will generate a report for me listing the non-compliant parts along with their substitutes • The benefit for tools like this, obviously, is the combination of speed and consolidated results s
These are the results returned from a “one-click” RoHS Query s
By expanding the lower window, I can see the full RoHS report s
By expanding the lower window, I can see the full RoHS report s
Tools such as CAPS Connect also provide a “window” to see details s
And by expanding the lower window, I can see further details s
So let’s review the “Best Practices” for RoHS Data First of all, be careful of assumptions: • One-to-one replacements aren’t the rule of thumb • You will need to put Component Engineering intelligence into whatever replacement strategy you choose • It will be your responsibility to ensure compliance – not any of the downstream providers Second, be consistent in whatever strategy you pursue • If you’re going to contact manufacturers, start early – it’s a time-consuming process • If you’re going to use an outsource service, try all of them to find out which works best within your existing practices • If you’re going to choose a software solution, install it now and get everyone trained on it s
If there only one recommendation, what might that be? Document your results • You’ve already seen that the available and necessary information is not all that straightforward • It’s one thing to find RoHS compliance information when designing or “scrubbing” a BOM – quite another when it’s holding up shipment • Anticipate the obvious by keeping a file or a folder with all the relevant documentation for an entire BOM or assembly in a single place s
And a final thought Stay abreast of these regulations • RoHS and WEEE are only European-directed • China’s mandate is primarily focused on lead • US-directed regulations haven’t even come out yet • Only by collecting full material content can you be prepared for future regulations Compliance – and understanding how compliance is changing – needs to become a part of your daily working practices s