PCBgogo

Electronic Project Engineer's Best Partner!
F****ing
How RoHS Regulated PCB Industry
1315 45 Jun 25.2021, 16:03:45

One of the universal issues that cause increasing concern is the environmental protection issues of electronic products. In the past few years, there has been a boom in digitization, global output of electrical and electronic equipment is exploding. Robots, drones, 3D printers, the Internet of Things (IoT), smart home assistants, and home medical equipment are all governed by RoHS, which are high relative to PCB producers and manufacturers.

   RoHS is an abbreviation for the Restriction of Hazardous Substances Directive, which is also an abbreviation for the Directive on the Restrictions on the Use of Certain Hazardous Substances in Electrical and Electronic Equipment. Since adopted in February 2003 by the European Union, RoHS has become a mainstream of environmentally friendly certification.

Since July 1, 2006, the RoHs standard has been formally implemented, many great PCB manufactures follow this standard. PCBgogo is one of them who actively respond to RoHS standard.

RoHS is largely used to define the material and process standards of electronic and electrical goods in order to make them more favorable to human health and the environment. This standard's objective is to remove lead, mercury, cadmium, hexavalent chromium, polybrominated diphenyl ethers, and polybrominated diphenyl ethers from electrical and electronic goods, with an emphasis on cadmium concentration of less than 0.01%.

 

Why is RoHS Compliance Important?

The prohibited materials are environmentally harmful, contaminate landfills, and endanger employees during production and recycling. 

 

How is Printed Circuit Board Testing for RoHS Compliance?

Portable RoHS analyzers, also known as X-ray fluorescence or XRF metal analyzers, are used to check for and confirm the presence of prohibited metals. New testing is necessary to detect the amounts of these chemicals, which are extracted with a solvent, with the introduction of RoHS 3 and the four additional phthalates.

The testing process for the PCB sample is shown in the following figure:

 

Which Companies are Affected by the RoHS Directive?

If any of the banned materials are used, any company that sells or distributes applicable EEE (Electrical and Electronic Equipment) products, sub-assemblies, components, or cables directly to EU nations, or sells to resellers, distributors, or integrators who then sell goods to EU countries, is affected. Since RoHS-like rules have extended to many other nations, this simply no longer applies to EU countries. 

RoHS also applies to the metal industry for any application of metal plating, anodizing, chromatin, or other finishes on EEE components, heatsinks, or connectors.

For global PCB manufacturers, RoHS certification becomes a green transportation card. As I know of Chinese PCB companies, PCBgogo is a prominent RoHS-compliant PCB & PCB assembly manufacturer. They contribute to the elimination of hazardous chemicals from electronic goods by offering RoHS-compliant PCB manufacturing and PCB assembly services.

 

How is RoHS Directive Regulated in PCB Industry?

Let me comprehensively explain how the next generation of PCB products can meet the increasingly stringent environmental protection requirements from the aspects of raw materials management and selection.

1. Eco-friendly Raw Material Selection and Management

Hg, Cadmium, sexivalent chromium are seldom be used in the PCB industry, or it can be said, except for the wet process in PCB fabrication will residue trace amounts, this kind of element will not be used deliberately by PCB manufacturers. As a result, when select raw material, manufacturers only need to consider the content of lead and halogen does not exceed the standard to meet the environmental protection requirements. Actually, In PCB fabrication, surface finishes are the process to make the PCB lead-free.

 

2. Choose Lead-free Soldering

Traditional PCB (and SMT production) also has a great number of Pb-Sn ally, such as HAL, solder paste, which contents a lot of lead genus heavy metal elements. Once the body's lead inhalation exceeds its saturated concentration, symptoms such as anemia, calcium deficiency, and decreased immunity will occur.

With the worry for environmental pollution and the bad effect on human health, manufacturers only allowed panels or printing inks that have micro-scale halogens. 

Image courtesy: pcbgogo.com

 

2.1 The Selection of Materials

PCB final products include the following three types of materials: substrate materials, surface finishes (metal) layers, and inks.

 

2.1.1 Features of Eco-friendly Substrate Materials

Regularly panels contents FR-4, CEM-3 have a large number of brominated epoxy resin, such as tetrabromobisphenol, polybrominated biphenyls, polybrominated diphenyl ether. When burning, this material will emit extremely toxic substances, like dioxins (TCDO), benzofuran, etc. Once inhaled by the human will not be able to discharge and it would be a great threat to human health. As a result, materials that are used in the PCB CCL (Copper Clad Laminate) industry must be replaced by halogen-free substrate ( Cl<0.09%, Br <0.09% ), which means replacing brominated epoxy resin with phosphorous (P) containing epoxy resin, replacing the traditional dicyandiamide curing agent with nitrogen (N) containing phenolic resin.

Moreover, Environmental protection panel must have strong heat resistance capability to withstand high temperature that occurs many times in lead-free SMT project that may cause discoloration, delamination, deformation, and bend to the panel.

 

2.1.2 Avoid Polluted Environment by Correct Choice of Solder F luxes

Currently, most environmentally friendly solder fluxes use HASL, which replaced Pb-Sn alloy. The coating of lead-free PCBs should have high moisture liquidity, less thermal stress, and will not be easy to oxidize in high temperature, with these performances, the SMT process can be more stable. What’s more, HASL soldering flux should be environmentally recyclable and have miscibility with SMT soldering flux.

 

2.1.3 Attention to Residual Inks Pollution

Residual Inks in the PCB process include: solder resist inks, text inks, plug hole inks. The composition of inks is similar to panels, mainly including resin, bromine flame retardant, and curing agent. The selection of ink compliance to environmentally friendly requirements based on high thermal resistance capability and will not delaminate, drop, or crack in PCB productions.

 

2.1.4 Lead-free Materials Management

The management of substrate materials is the key link in the production chain. Disasters happen when a lead-tin bar is mistakenly added into a pure tin bath. At the same time, manufacturers won’t ignore indirect materials like soldering flux residuals. They always take the following measures to avoid this situation:

(1) Making lead-free and halogen-free raw materials coding rules.

(2) Use colorful slogan: the outer and inner packages are printed with "green environmental protection" label approved by IQA.

(3) Separately storing environmentally friendly raw materials, and these materials must be operated by trained staff.

(4) Completing authentication of the green qualified supplier.

 

Image courtesy: pcbgogo.com

 

Conclusion

Details determine success or failure. The same as PCB manufacturer. Good PCB comes from an employee-concerned manufacturer. RoHS directive not only guarantees PCB quality but also protects workers’ health. As a customer, RoHS certification always is a necessary reference. Wish everyone can find your loving RoHS-compliant PCB manufacturers

  • Comments(45)
Upload a photo:You can only upload 1 files in total. Each file cannot exceed 2MB.Supports JPG, JPEG, GIF, PNG, BMP
Browse
Submit
header
R****ker

May 27.2024, 14:51:33

cool stuff you have got and you keep update all of us. [url=https://commentsgo.com/instagram-comments/]drip feed[/url]

Reply

Submit
header
R****ker

May 27.2024, 14:50:25

cool stuff you have got and you keep update all of us. [url=http://commentsgo.com/instagram-comments/]drip feed[/url]

Reply

Submit
header
**

May 21.2024, 19:15:38

The post is written in very a good manner and it contains many useful information for me. ?????

Reply

Submit
header
E****ess

May 20.2024, 12:46:29

Their management process is very strict, I feel satisfied with the quality. grade calculator

Reply

Submit
header
**

May 19.2024, 18:31:50

Dive into the enchanting world of Mahjong Ways, a PG Soft slot that blends the classic game of Mahjong with thrilling slot action. With its high win rate and unique mechanics, this slot offers endless excitement and big win potential. Spin the tiles and uncover the treasures of Mahjong Ways! https://topratedmma.com/

Reply

Submit
header
**

May 18.2024, 22:10:10

Ones new music is usually wonderful. You could have many incredibly proficient painters. When i hope people the most beneficial connected with achievements. Taysen Toto

Reply

Submit
header
**

May 16.2024, 20:48:01

Fox and Forage is an Oklahoma catering company that specializes in wedding catering, bartender rental, small party catering, corporate catering, holiday catering, and more. Our goal is to share the spotlight with you at your event and create a culinary spread that is designed to delight you and your guests with every bite. catering food

Reply

Submit
header
**

May 16.2024, 18:47:44

For those in need of strong pain relief, Zapain 30mg/500mg Tablets are ideal. Combining paracetamol and codeine, these tablets are effective for severe pain. Purchase online and enjoy fast, next-day tracked delivery for convenience. buy zapain online

Reply

Submit
header
**

May 14.2024, 19:44:24

I am happy to find this post very useful for me, as it contains lot of information. I always prefer to read the quality content and this thing I found in you post. Thanks for sharing. ?????

Reply

Submit
header
**

May 14.2024, 18:24:20

Unravel the mysteries of fortune at MysticFortunes Casino, a premier slot website from a trusted gaming giant. With its mystical games and frequent jackpot payouts, it's a mystical journey for players. ????????? ??????? ???? ????

Reply

Submit
header
**

May 12.2024, 19:13:00

I would like to say that this blog really convinced me to do it! Thanks, very good post. ??????

Reply

Submit
header
**

May 11.2024, 19:04:17

This is the wonderful content, Cheers pertaining to supplying us this info. Preserve putting up. Мото

Reply

Submit
header
**

May 09.2024, 19:22:42

You can be permitted to content artists, however it is not connections, in the event they are simply endorsed and additionally relating to question. mp juice

Reply

Submit
header
**

May 08.2024, 18:55:56

I actually pleasantly surprised together with the study you actually manufactured to make this special upload unbelievable. Excellent hobby! Firearm Angel

Reply

Submit
header
**

May 07.2024, 20:15:23

Wow, cool post. I'd like to write like this too - taking time and real hard work to make a great article... but I put things off too much and never seem to get started. Thanks though. grung dnd

Reply

Submit
header
**

May 06.2024, 20:32:24

Pretty good post. I just stumbled upon your blog and wanted to say that I have really enjoyed reading your blog posts. Any way I'll be subscribing to your feed and I hope you post again soon. Big thanks for the useful info. ???????

Reply

Submit
header
**

May 06.2024, 18:44:53

Join the open education movement with Thomas Adewumi University, Oko's OER website! Explore a vast collection of learning materials contributed by educators and experts from around the world. Whether you're interested in science, humanities, or technology, our platform offers comprehensive resources to support your intellectual curiosity and academic pursuits. TAU-OER

Reply

Submit
header
**

May 02.2024, 22:01:19

I just astounded aided by the test most people made to choose this specified share wonderful. Marvelous recreation! personal car leasing

Reply

Submit
header
**

Apr 30.2024, 21:31:37

Superior Place, My organization is a great believer during ad opinions regarding online websites that will let the webpage novelists recognize that theya€?ve put in an item worthwhile that will the online market place! walmart

Reply

Submit
header
**

Apr 29.2024, 19:27:29

Awesome posting, it has the such a interesting site there is listed here, keep up to date favorable deliver the results, might be backside. отидете на уебсайта

Reply

Submit
header
**

Apr 28.2024, 20:29:01

Awesome posting, it has the such a interesting site there is listed here, keep up to date favorable deliver the results, might be backside. ?????

Reply

Submit
header
**

Apr 27.2024, 18:36:04

Get in on the action with Mark TV's Toto site free money offers! From EPL and La Liga to Bundesliga and NBA, we've got all your favorite sports covered. Don't miss out on MLB, KBO, and UFC excitement, plus real-time updates and overseas coverage. Join us for the ultimate sports experience! ?????

Reply

Submit
header
**

Apr 25.2024, 19:57:17

Superior Place, My organization is a great believer during ad opinions regarding online websites that will let the webpage novelists recognize that theya€?ve put in an item worthwhile that will the online market place! indo3388

Reply

Submit
header
**

Apr 25.2024, 17:54:21

As i pleased considering the studies one which is designed to get this individual print remarkable. Splendid actions! ????

Reply

Submit
header
**

Apr 24.2024, 17:48:07

Journey to the Far East in "Dragon's Fortune" slot by PG Soft and unlock the secrets of the mythical creatures to uncover gacor wins. With its stunning visuals and immersive gameplay, this game offers an unforgettable gaming experience. https://pasangantennatvhd.com/

Reply

Submit
header
**

Apr 24.2024, 16:13:28

Fearful of Instagram outing you for taking a screenshot? Not happening! Instagram respects privacy and doesn't send notifications for screenshots. Keep capturing! screenshot on instagram

Reply

Submit
header
**

Apr 23.2024, 22:21:53

The item senses brilliant to learn to read like beneficial in addition to one of a kind articles or blog posts with your internet websites. ?? ???? ??

Reply

Submit
header
**

Apr 23.2024, 21:01:58

Stay updated on all things crypto with CRYPTO30X! Our comprehensive news and analysis delve into Bitcoin, Ethereum, and more. Explore the metaverse and understand digital tokens with our simplified content. Crypto30x Dogecoin

Reply

Submit
header
**

Apr 23.2024, 19:47:32

Get ahead on YouTube with our 4000 watch hours package! Meet monetization requirements swiftly and efficiently. Increase your channel's visibility, attract new subscribers, and boost ad revenue. Invest in your success and concentrate on delivering exceptional content to your viewers! buy youtube watch time cheap

Reply

Submit
header
**

Apr 22.2024, 18:55:50

As the New, My organization is in the long term searching on line meant for article content which really can be for assist with my family. Thank you so much. Kfz Gutachter Dormagen

Reply

Submit
header
**

Apr 21.2024, 18:57:39

This is certainly hence attractive plus artistic. I like a colorations plus whichever company may get them while in the mailbox might be smiling. ?????

Reply

Submit
header
**

Apr 20.2024, 21:50:19

Recently, I have commenced a blog the info you give on this site has encouraged and benefited me hugely. Thanks for all of your time & work. アリエクスプレスクーポン

Reply

Submit
header
**

Apr 20.2024, 19:10:59

Stay ahead of the game with MTDEFENCE's expert Toto insights. Our platform offers valuable tips and strategies to help you maximize your winnings while minimizing your risks. ?????

Reply

Submit
header
**

Apr 20.2024, 19:09:41

Stay ahead of the game with MTDEFENCE's expert Toto insights. Our platform offers valuable tips and strategies to help you maximize your winnings while minimizing your risks. ?????

Reply

Submit
header
s****sss

Apr 17.2024, 19:12:58

Step into the world of sports betting with confidence, courtesy of SBOBET – the trusted name in online betting excellence. With SBOBET88, you'll enjoy a seamless betting experience across a wide range of sports, all backed by official licensing and a reputation for integrity. Join the winning team today – register with SBOBET and start winning big. sbobet88

Reply

Submit
header
**

Apr 14.2024, 21:16:56

At Bakar77, we believe that every player deserves to be treated like a VIP. That's why we offer a range of exciting bonuses and promotions designed to reward our loyal customers. From welcome bonuses to free spins, there's always something special waiting for you at Bakar77. Join us today and start reaping the rewards of being a valued member of our community! https://www.pesandisini.info/

Reply

Submit
header
**

Apr 14.2024, 19:13:18

Exciting news! Participate in our airdrop event by following, liking, and retweeting to receive 9 billion free coins! But hurry – limited to the first 500 BNB addresses! Comment your BNB address below to enter and potentially win. Don't miss out on this opportunity! Bullish presale

Reply

Submit
header
**

Apr 07.2024, 03:43:07

Great Publish, I'm a large believer within publishing remarks upon websites in order to allow weblog authors realize that theya€?ve additional some thing beneficial in order to the internet! CNPR Training Program

Reply

Submit
header
**

Apr 06.2024, 21:26:47

Fabulous article. That blog post impinges on a whole lot of immediate need conflicts of the contemporary culture. You cannot be uninvolved to help you a lot of these conflicts. It blog post grants ideas and even creative concepts. Highly insightful and even helpful. Commercial Iron Railings Toronto

Reply

Submit
header
**

Apr 02.2024, 20:55:36

Sustain the nice do the job, When i understand several threads within this web page in addition to I'm sure that a world-wide-web blog site is usually authentic useful possesses bought communities connected with excellent facts. swimming pool cover

Reply

Submit
header
**

Apr 01.2024, 16:02:27

RoHS aims to reduce the environmental impact of electrical and electronic equipment by restricting the use of hazardous substances. Prohibited materials such as lead, mercury, cadmium, and certain brominated flame Drift Hunters retardants can contaminate soil and waterways when improperly disposed of, leading to environmental degradation.

Reply

Submit
header
**

Mar 12.2024, 19:49:38

I simply reckoned it is an outline to share in case other companies was first experiencing difficulty looking for still Now i'm a small amount of doubting generally if i here's permitted to use artists and additionally explains relating to right. ??????

Reply

Submit
header
m****lam

Mar 11.2024, 20:03:57

Truly strong, amazing, fact-filled info right here. Your own articles Never dissatisfy, which definitely is true right here too. A person usually alllow for a fascinating study. Are you able to inform I am amazed?: )#) Continue the great content articles.????

Reply

Submit
header
P****yly

Jan 30.2024, 17:30:46

I appreciate that  getting over it provides insights into how the PCB industry regulates RoHS compliance. It highlights the eco-friendly raw material selection and management, the importance of choosing lead-free soldering, and the selection of materials for PCB production.

Reply

Submit
header
**

Dec 21.2023, 06:37:18

Your blog is a fountain of knowledge. Thanks for sharing! Gender reveal ideas

Reply

Submit
Share the Project