CML provides clean solutions for your PCBs

CML provides clean solutions for your PCBs

What does technical cleanliness mean?

Technical cleanliness is focused on particle contamination and it should not be compared with ionic contamination.

Particle contamination usually occurs during manufacturing processes, but it could also be resulting from inappropriate packaging, cleaning or handling methods.

When components must be free of such contamination to ensure high quality and reliability of finished products, then it is not sufficient to specify that the components “must be clean”.

In these cases, specification limits must be defined, and the contamination level must be measured and controlled.


Pic 1_non-metallic sample.jpg

Pic 01: example of a non-metallic particle with a size of 318x127µm

Pic 2_metallic sample.jpg

Pic 02: example of a metallic particle with a size of 105x54µm


With the rising complexity of products there is also a growth in customers’ expectations towards each single component (e.g. PCB) which impact the manufacturers’ production equipment and processes.

How could this impact your products?

The durability and lifespan of your finished product is affected among others by the technical cleanliness.  Particle contamination can interfere the function on PCBs and this could lead to a breakdown of the electronical device.

Are there general official requirements for PCBs available?

There are no official international rules available especially for PCBs. The norms VDA19.1+2 and ISO 16232 contain rules for measuring methods and analysis as well as specification limits, but they are related to mechanical parts.

A guideline from ZVEI contains experience values for the electronic industry related to electronical components and PCBs but it has not yet been converted into an official norm.

How can CML support on this topic?

At the beginning of last year, a special task force was established at CML, starting with an external training to build up the knowledge for the technical cleanliness. We analyzed the current situation with our suppliers and started to handle the first projects with this new requirement. After implementing a special separate process for several production, cleaning, handling and packaging steps, we could achieve a great reduction of particle contamination on our PCBs. This has been confirmed by measurements conducted before and after the improvements by an accredited third-party laboratory.

Our knowledge is for your benefit. With our PCB experts and cooperation with our production partners, CML delivers clean PCBs to you.


Stay cool with CML PCBs

Stay cool with CML PCBs

Electronics are designed and built to be sustainable, but where there is light there must be shadow and this shadow is called "heat" in electronics.

So how can we reduce the thermal stress on components to secure the safety and reliability of electronics?

In order to prevent the components from overheating, it is necessary to get rid of unwanted heat and cool them down. Thermal management is key for high powered components which generate a lot of heat such as: LED applications, voltage regulators or electronic motor controls.

One option of thermal management is to assemble a heat sink directly on components to absorb excessive heat. Overall, this procedure would mean additional effort during assembly.

Alternatively the PCB itself can be a cooling solution, for example by using laminates with high thermal conductivity (1-5 W/mK compared to 0,3 W/mK on standard FR4).

Therefore CML offers various solutions for your specific requirements:

thermal management 320x350.jpg
  • Aluminum substrate
  • Copper substrate
  • Flex on Aluminium or Copper
  • Post bonded heatsinks
  • Copper inlay (Inlay-/Coin-Technology)
  • Aluminium nitride inlay
  • Thermal vias / microvias (drilled / lasered)
  • “Heavy” copper

To find out which solution is the most suitable for your project, get in touch with us today,

CML at electronica 2018

CML at electronica 2018

Once again, CML will be participating in electronica this year. With 2,913 exhibitors from 50 countries from 2016, not only has electronica proven to be the most important trade fair for the electronics industry but it is also CML's biggest show to date. 

This year we will be exhibiting with a bigger booth and like always, it is an exciting opportunity for CML to showcase the technology, products and solutions to the global market. 

At electronica, you will be able to see how our PCB solutions and expertise - power some of the world's leading brands from the automotive, to industrial, to data and telecommunications industries.

Please feel free to drop by our booth: Hall A1, Booth 244

  • Venue: Messe München 
  • Dates: 13th- 16th November 2018
  • Opening Hours: 9.00- 18.00 (13th - 15th November) , 9.00 - 17.00 (16th November)


Or if you would like more information, you can contact us via

Getting Flexible with Bendable PCBs

Getting Flexible with Bendable PCBs

 Figure 1

Figure 1

CML provides PCB solutions with reliable connections to some of the biggest global brands in different industries. They trust our expertise and automotive know-how, you can too…

During the development stage of a new product or even during the optimization of an existing system, the engineers often have one question on their mind. How to connect the PCBs without using connectors and cables? From the cost optimization perspective, most designers would prefer not to go for a flex or even rigid-flex solution.

So what is the alternative option? A cost competitive solution with an even more reliable connection can be applied by using bendable also known as semi-flex or flex for install PCBs.

Bendable PCBs are versatile and suitable for a wide range of applications across different industries. They are used where less than five static bending cycles are required, e.g. when onetime bending is required such as installing the PCB in or on a plastic casing or housing.

In the PCB area(s) defined for bending, the material is reduced by depth routing to a remaining thickness of minimum 0.20mm to a maximum of 0.40mm. But one thing should be mentioned during the design: the layer structure of the base material should be selected in a way so that during the depth-routing at least one glass layer is not routed. Otherwise the glass fibres are unprotected and during bending it is possible that the glass layer will crack.

CML provide a wide range of bendable PCB projects to the market, especially for automotive applications including the bendable PCBs used inside the door handle (Figure 1) and LED lighting of cars (Figure 2 & 3). As you can see from the image below, the door handle is curved and have angles so it would be difficult to install a rigid PCB.

 Figure 2

Figure 2

Another example of a bendable PCB is used for an automotive LED application, to cater to the curve and shape of the car in Figure 2 and 3. 



 Figure 3

Figure 3



Our experts are here to provide you with answers to all your PCB challenges. We look forward to working with you on your next bendable project.

For more information or inquiries, get in touch with us today,

CML's Mission in the USA

CML's Mission in the USA

During the 2018 IPC APEX exhibition, Mr. Ivan Wong General Manager of CML USA corp had the honor to participate in an interview with iconnect007.

In this interview, Ivan shared details on CML and why a strategic step was taken towards establishing operations in the USA.  

To read the full article , please click here.




CML USA exhibiting at PCB West 2018

CML USA exhibiting at PCB West 2018

CML USA corp, will be participating in another sold-out exhibition in September this year.  PCB West attracts nearly 2,000 visitors comprising of designers and engineers and more than 100 exhibitors each year. 

The one-day exhibition is on Wednesday, 12th September 2018. Don't miss out on an opportunity to visit the CML booth and find out more about the technology, services and solutions that we can deliver to you and your customers.

Such as:

  • Multilayer
  • HDI
  • Bendable
  • Flex/ Rigid Flex
  • High Frequency


Feel free to get in touch with us to schedule a meeting ahead of time at



Find us here: Floor plan

Santa Clara Convention Center
Mission City Ballroom
5001 Great America Parkway
Santa Clara CA, 95054

Opening hours:
10.00 am - 6.00 pm





CML USA’s first time at IPC Apex

CML USA’s first time at IPC Apex

As we are nearing the end of the first quarter of 2018 CML takes another step into the US market. The representatives of CML USA corp exhibited at IPC APEX 2018 in San Diego earlier last month. 

“It was our very first time exhibiting in the USA and it was a great experience for us. As the first step it provided a platform for the PCB industry to meet each other and let the exhibitors show their new products, technologies and presence in this industry. For CML we understand that when a customer is faced with a challenge, not only do they want the most suitable solutions, but they want it quick. CML is punctual, uncomplicated and most importantly reliable. As we extend CML’s reliable connections, we continue to be close to the customer both geographically and culturally.” Mr. Ivan Wong, General Manager of CML USA corp.



CML reaches a new milestone and establishes operations in the USA

CML reaches a new milestone and establishes operations in the USA


CML are proud to announce that we have reached a new milestone and are branching out to the USA with established operations in Houston, November  2017.  With a growing customer base in North America, the strategic decision was made to set up CML USA corp.



At CML, in order to fulfill our customers’ requirements and assist them with their challenges, it is important for us to be close to our customers not just geographically but also culturally. Our USA team has at least 20 years of accumulated expertise and experience in the PCB industry. With our experts and US-based set up, the local market can benefit from enhanced strategic solutions and flexible support.

For the first time CML USA corp will be exhibiting at the IPC APEX EXPO 2018, where our team will be there to greet you in person, come and experience CML’s commitment to our customers as well as our distinctive PCB sourcing concept. 

CML will be seeing you at the IPC APEX Expo 2018

CML will be seeing you at the IPC APEX Expo 2018

CML are pleased to announce our global network expansion. This time, we are branching into America to serve our customers locally.  Think global, act local is part of our philosophy and by being in America it brings us closer to our customers, not just geographically but also culturally. 

CML USA corp, will be exhibiting at the IPC APEX EXPO 2018 show in San Diego, California led by our PCB experts who have over 20 years of experience and knowledge in the PCB industry. Our PCB expertise covers many different markets especially when it comes to automotive and the quality standards entailed. 

Have a query in mind?

Come visit us at our booth to find out what we can do and how our solutions can be perfected for your needs.

Feel free to also get in touch with us for a ticket and to schedule a meeting ahead of time at


CML Booth Number: 639

Exhibit Hall E

Find us here: Floor Plan


San Diego Convention Center

111 W Harbor Dr
San Diego, CA 92101

Exhibit Hall Hours

  • Tues (27/2/2018): 10.00 am – 6.00 pm
  • Wed (28/2/2018): 9.00 am – 6.00 pm
  • Thur (1/3/2018): 9.00 am – 2.00 pm


CML progresses with a re-certification of the ISO9001: 2015 standard

CML progresses with a re-certification of the ISO9001: 2015 standard

Over the years as we began to grow, in order to support our customers efficiently in all processes, CML decided to operate a quality management system according to ISO9001. For us, the ISO9001 is now an indispensable tool for the further development of our processes. In the interest to provide our customers with even better services, we recently upgraded to a new ERP system powered by APplus and in this context, we decided to bring in an integrated management system. Both of these systems are linked and synchronized.

In September 2015, the new version ISO9001: 2015 was released. The changes herein described what we had been living for years. Despite a transitional period of 3 years, we decided to audit our re-certification in April 2017 according to the newest version and passed successfully.

Our goal is to be the reliable partner that our customers require. The passed re-certification shows that we are able to be just that and we are very proud of this.

Our certificates are now available for download:
CML Europe GmbH
CML Automotive GmbH

By Beate Möller, Technical Account Manager CML Europe GmbH

 Beate Möller, Technical Account Manager CML Europe and Martin Schneider, Sales Director CML Europe

Beate Möller, Technical Account Manager CML Europe and Martin Schneider, Sales Director CML Europe

People are the Key, Talents are the Future

People are the Key, Talents are the Future

CML has always been keen on developing the CML team and investing in the future. As we strongly believe that our people are the key to our success. That’s why at CML, we provide opportunities trainee and internship programs in order to foster young talents, where they usually spend two years rotating between the different departments. Not only do the students get to gain hands-on experience and knowledge, they are also exposed to a global network and have the chance to communicate and work with a multicultural team. At CML we do not only provide a job, but opportunities and careers.

During my 2-year internship, I gained insight into several different departments around CML. As my internship included wholesale and foreign trade, I spent a large proportion of the time with Service Desk. Here I was pulled right into day-to-day business from day one and after just a short couple of weeks, I was able to support service desk and assist customers. Within the shortest time, I got to know CML and its people very well because I had the opportunity of rotating and working with different departments. What I appreciated the most was that I was never treated as “just” an intern but I was taken seriously and given real opportunities to get involved. At the end of the 2 years, my wishes were taken into account and I am now working as part of CML’s Marketing team where I am gaining valuable experience daily.
— Ms. Yvonne Kuhs, Marketing Executive.

That is why in collaboration with the Hinrich Foundation, CML organized a visit on 28th March 2017,  to one of our suppliers in order to allow the scholars to grasp a better understanding of PCBs and experience the production process and environment. Throughout the factory tour, the Hinrich scholars were fascinated, showed a lot of interest and enthusiasm. Not only did CML expose them to a tip of the PCB iceberg, they also had the opportunity to visit s.m.a.r.t., our knowledge center that provides fast & flexible production, testing & validation and training & education.

It’s over-whelming to know how PCBs are produced and what level of quality awareness one needs to have to achieve production excellence through supplier advancement. Thank you for managing the time and showing us around. We appreciate it!
— Mr. Gabish Joshi (MSc Supply Chain & Logistics Management) Hinrich Foundation scholar.
The scholars get an introduction to PCBs
Taking a walk through the production line

About Hinrich Foundation:

Mr. Merle A. Hinrich established the Hinrich Foundation with the mission of promoting sustainable global trade. It advances its objective by supporting trade scholarships and career development, offering export trade assistance, and fostering international trade research.

CML meets the Electronics Industry at Electronica 2016

CML meets the Electronics Industry at Electronica 2016

Electronica 2016 was held in Munich on November 8th-11th, is the leading international trade fair, where the electronics industry gathers and meets in this single location. Occupying up to 143,000 square meters with hundreds of exhibitors and tens of thousands of visitors from 87 countries, Electronica is a global business platform where the latest trends and opportunities are discovered.

Across the four days, our booth was constantly lively with a large flow of interest where visitors from different companies and countries stopped by. Our car and PCB displays grabbed a lot of attention, sparked a lot of interest and stopped people in their tracks who wanted to find out more about our PCBs and applications. The presence of our customers and visitors made this event a huge success for CML.

As the leaders in PCB sourcing solutions where our PCB experts are also your experts, have more than 10 years of experience in the PCB industry, were able to discuss and understand the PCB needs and challenges of our customers and visitors. Hence after the meetings we were able to provide them with meaningful insight and solutions to their PCB difficulties. Customer satisfaction is key to CML and we were pleased that our customers and visitors expressed great satisfaction and hear their positive and valuable feedback.

For CML, it is our aim to continue to create great solutions for all our partners based on reliable connections so they can become more successful in their market. With 2017 rapidly approaching, considering the market trends, together we can expect an exciting year ahead. 

The New Look of CML EurAsia

The New Look of CML EurAsia

2016 has been a year of change for CML, a new corporate culture and a new office to go with it.

Onwards and Upwards

Onwards and Upwards

Having achieved phenomenal growth since its establishment in 2001, the time is now right for CML to implement a corporate culture-transformation project...