Designers Notebook: Specifying Lead-Free Compatible Surface Finish and Coating for Solderability and Surface Protection
A majority of the components furnished for electronic assembly are designed for solder attachment to metalized land patterns specifically designed for each device type. Providing a solder process-compatible surface finish on these land patterns is vital; however, selection of the surface finish on the circuit structure, whether plated or coated, can be greatly influenced by the components’ terminal metalization and the specific alloy composition used for the assembly process.
Laser Pointers: Special Edition—Those Five Words I Didn’t Expect to Hear
I’m going to hijack the column this month for kind of a public service announcement regarding a topic that hit very close to home for me, and it may well hit home for others.
On February 18, 2016, I heard the words, “Mike, you have bladder cancer.”
EIPC Summer Conference 2016, Day 2: Strategies to Maintain Profitability in the European PCB Industry
Delegates awoke to a gloomy Scottish morning on the second day of the EIPC Summer Conference 2016. One or two who maybe overindulged in the whisky on the previous evening had some difficulty in finding time for breakfast before the conference proceedings, but the atmosphere in the meeting room was brighter than the weather outside, as Professor Martin Goosey introduced the day’s programme.
IPC President John Mitchell Discusses IPC's Footprint in China
At the Capital Club in Beijing, IPC’s president John Mitchell met with I-Connect007’s Edy Yu to discuss the current activites of IPC China. Some of the topics covered included the growing China membership, training, trade shows and IPC China’s standards development effort.
EIPC Summer Conference 2016, Day 1: Strategies to Maintain Profitability in the European PCB Industry
Resplendent in the kilt, EIPC chairman Alun Morgan welcomed a large and enthusiastic gathering of printed circuit professionals from all over Europe and as far afield as the USA, Canada and Russia, to the EIPC Summer Conference 2016 in Edinburgh, Scotland's cosmopolitan capital city.
Institute of Circuit Technology Annual Symposium
On June 1, Technical Director Bill Wilkie introduced the 42nd Annual Symposium of the Institute of Circuit Technology, at the Motorcycle Museum in Birmingham, UK, commenting upon the success of the recent Foundation Course and acknowledging the sterling efforts of his course tutors, although recognising that some of his longest-standing experts were now retiring.
Global Technology Development: HDP User Group European Meeting 2016
Delighted and honoured to be invited again to attend the open session of the High Density Packaging User Group (HDPUG) European Meeting, I made my way to the picturesque Grand Duchy of Luxembourg, a tiny principality bordered by Belgium, France and Germany, and ranked among the world's top-three nations in both wealth and wine consumption, to learn about the latest in collaborative research and development by member companies engaged in the manufacture of products utilising high-density electronic packages.
IMPACT Washington, D.C. 2016: Industry Leaders Advocate for a Pro-Manufacturing Policy Agenda
IPC places a high priority on educating government officials about key policy issues of importance to the electronics industry. That’s why top executives from leading electronics companies gathered in Washington, D.C. recently for “IMPACT Washington, D.C. 2016.”
Stepping up to Laser Processing for Flex, Part 3: Readiness and Site Preparation
With so many processes to keep track of in a flex manufacturing line, it can be easy to get lost in the details and begin to rely on your suppliers to address any issues that might crop up. However, given that laser processing equipment and flex materials are both impacted by your facilities, your attention to and investment in clean, stable, and robust facilities and support equipment will quickly pay off in less downtime, higher yield, and—perhaps most importantly—fewer headaches!
Beyond FR-4: High-Performance Materials for Advanced Designs, Part 1
In the past 40-plus years of PCB manufacturing, the primary material of choice has overwhelmingly been e-glass supported FR-4 resin laminates. This is due to the excellent dimensional stability and reasonably acceptable thermal performance (based on glass transition temperature [Tg] and decomposition temperature [Td]). In general, these materials exhibit impressive performance and excellent cost for a wide range of applications.
All About Flex: Imaging Methods for Etch Resist, Part 1
Imaging is a major process step in creating a copper circuit or flexible PCB. In single-sided circuit fabrication, the imaging process creates the resist pattern that protects the copper from the etchant. It is critical that this pattern precisely define the circuit traces, as issues with imaging will transfer to the subsequent processes.
Designers Notebook: Flexible and Rigid-Flex Circuit Design Principles, Part 5
The outline profile of the flexible circuit is seldom uniform. One of the primary advantages of the flexible design is that the outline can be sculpted to fit into very oblique shapes. This month, Vern Solberg focuses on outline planning, physical reinforcement, and accommodating bends and folds in flexible and rigid-flex circuits.
Flex Talk: PCB Sourcing? One Size Does Not Fit All
When analyzing a set of PCBs to improve yields and maximize profits, the first place to start is with a critical review of each PCB design. Are there any attributes that are pushing your manufacturer’s standard design rules? If so, is this necessary to the design or is there another approach that could improve the manufacturer’s yields, reduce cost, and ultimately increase profit?
Stepping Up to Laser Processing for Flex, Part 2: Calculating and Optimizing Production
In Part 1 of this series, we discussed the advantages of adding flex laser processing to gain a competitive advantage. In Part 2 we will build on that discussion, looking at the ways you can optimize your flexible circuit laser processing to get the efficiencies that drive lower cost of ownership.
All About Flex: Why Copper is Ideal for Flexible Circuitry
Copper is the second-most conductive metal (in pure form). The copper used on flexible circuits can be formed by a number of methods such as electro-deposition (ED), rolling/annealing, or a combination of the two. The conductivity of copper by volume on a flexible circuit is not exactly the same as pure copper, but it is quite close.
The Importance of Choosing Equipment Suppliers Carefully and Investing in the Future
Burkle Process Technologies, a long-time PCB equipment supplier to high-end manufacturers in the world, is seeing their business continuing to grow despite the perceived slowdown in the industry in China. They ensure this by working closely with customers, making premium products to understand future technology needs, and offering the highest quality in laminating machines and technical support.
Weiner’s World: March 2016
Sellers of equipment at the Shanghai CPCA event complained of continued poor business. This was especially evident amongst those selling to firms building boards for phones and other portables devices as indicated below. However, not all reports were bad. Major fabricators such as Wu's in China, not dependent upon HDI or flexible products, stated that they were "satisfied" with their current business levels.
Designers Notebook: Flexible and Rigid-Flex Circuit Design Principles, Part 4
All of the design rules for the glass reinforced-portion of the board (land pattern geometry for mounting surface mount devices, solder mask and the like) are now well-established. One unique facet of fabricating the rigid-flex product is how the flexible portion of the circuit is incorporated with the rigid portion of the circuit. As a general rule for multilayer PCB design, furnish a balanced structure by building up the circuit layers in pairs (4, 6, 8 and so on).
The Supplier View: An Interview with Hamed El Abd
I sat down with WKK’s Hamed el Abd at CPCA, where we discussed the show, the growing trend toward automation, as well as a few other topics, namely world politics and economics and how they relate to the PCB industry.
Happy’s Essential Skills: Design of Experiments
Design of experiments (DOE) is one of the most powerful and influential engineering tools for product yield improvements, new products or processes development, or for problem solving. As mentioned in my last column, process problems led me to a career in printed circuits, and quickly solving those problems led me to a bonus stock award and a great life. Even though I knew nothing about printed circuit manufacturing processes, I was able to quickly find the root causes of all the problems and fix them. My secret? Total quality control (TQC), statistics, and DOE.
Rex Rozario, Part 4: A 10,000-ft. view of his Business Ventures, the Industry, and Life
In our final installment, Rex describes the common thread woven through all of his successful business ventures and varied interests: confidence and the fortitude to follow his dreams until they are realized. Rex also takes a look back at the evolution of the global PCB industry, and explains his approach to profitability, which includes building (and rewarding) a successful team.
Rex Rozario, Part 3: The Future Beckons
In Part 3 of our multi-part interview with industry veteran Rex Rozario, we begin with the future. Having achieved success in China, could Rex and the Graphic team have their sights trained on the U.S.? Also in this installment, Rex weighs in on China’s future, and we discuss the value of automation. Is it for everyone?
Rex Rozario: The PCB Industry’s True Renaissance Man
In this exclusive multi-part interview that was conducted recently, I-Connect007's Barry Matties will introduce you to all of the people that Rex Rozario is, and where he, his team, and Graphic PLC are headed to next.
The Sum of All Parts: The Cost of Quality
Throughout the decades, irrespective of industry or sector, markets have thrived on competition. They have, however, also relied upon some semblance of unity within their respective competitors. Industries rely upon their individual member companies’ ability to work together for the greater good.
The Institute of Circuit Technology Tewkesbury Seminar, 1st March 2016
The Annual General Meeting of the Institute of Circuit Technology (ICT) was held at Puckrup Hall, near Tewkesbury in Gloucestershire, England, on 1st March 2016, and was followed by a well-attended evening seminar with presentations on a novel laser-induced deposition process, an analysis of the market for PCBs, and a review of three development projects in which the Institute had participated. The programme was introduced and moderated by ICT Technical Director Bill Wilkie.
Designers Notebook: Flex and Rigid-Flex Circuit Design Principles, Part 2
In this installment of "Designers Notebook," Vern Solberg discusses supplier assessment, planning of the flexible circuit outline, and various circuit routing principles. Communication between designer and fabricator is paramount, as well as an understanding of IPC-2223, which sets the specific requirements for the design of flex circuits.
The Pinless Registration System, Explained by DIS’ Bernd Gennat
I sat down at productronica recently with Bernd Gennat, VP sales Asia and Europe for Duetto Integrated Systems (DIS Inc), for an overview of the industry, including his company’s technology. Our discussion touched on trends in multilayer registration, market requirements in Europe compared with those in China, and the benefits of pinless over hard-tooled registration systems for current and future rigid, flex and flex-rigid constructions.
Mr. Laminate Tells All: CEM-3 Reinvents Itself (Again)—or, Atari Game Boards on eBay?
CEM-3 was unusual as the reinforcement was a combination of woven fiber-glass fabric and fiber-glass paper. The resin system was a dicy-cured epoxy resin yielding a Tg the same as FR-4 at the time, of 110–120°C range. Because it was all epoxy and all fiberglass, the properties were electrically identical to those of FR-4.
New Year, New Outlook for the Electronics Manufacturing Industry
As an advocate for the electronics manufacturing industry, my job is to educate and encourage policymakers to create a favorable legislative and regulatory environment for advanced manufacturing to grow and succeed. From that perspective, I think we should be proud of the significant progress we made in several areas in 2015.
How North American Fabricators Benefit from Attending HKPCA
Two New Englanders in Shenzhen. It sounds like the title of a play, doesn’t it? Headlining the bill is Peter Bigelow of IMI, who explains to me why even small American manufacturers benefit from attending large Chinese shows like the HKPCA. He’s joined by fellow New Englander Alex Stepinski of Whelen Engineering, who discusses drill concepts and the transition to zero discharge.
In Their Words: Hong Kong Printed Circuit Association (HKPCA)
Recently, we sent a questionnaire to a number of printed circuit associations around the world, asking them to tell us a little about their organizations. With the annual HKPCA & IPC show having just ended, this information provided by HKPCA is especially interesting.
Happy’s Essential Skills: The Need for Total Quality Control (Six Sigma and Statistical Tools), Part 2
The statistical representation of Six Sigma describes quantitatively how a process is performing. To achieve Six Sigma, a process must not produce more than 3.4 defects per million opportunities. A Six Sigma defect is defined as anything outside of customer specifications. A Six Sigma opportunity is then the total quantity of chances for a defect.
In Their Words: The IPCA–India Printed Circuit Association
To better understand the many associations serving the global electronics industry, I-Connect007 conducted many interviews for this month’s issue, as well as distributed several questionnaires, one of which was to IPCA (India Printed Circuit Association). The IPCA is not part of IPC, though the two associations do collaborate. Secretary K. S. Babu responded on behalf of IPCA President Viral Bhulani.
Designers Notebook: Flex and Rigid-Flex Circuit Design Principles, Part 1
In his new Designers Notebook column, Verb Solberg discusses primary flex circuit structures, proper design for operating environment, and base material selection. The design guidelines for flexible circuits, although similar to those for rigid circuits, have distinctive differences that are influenced by specific applications and the intended operating use environments. Communication with your fabricator is paramount when designing flex and rigid-flex circuits.
Happy’s Essential Skills: The Need for Total Quality Control (Six Sigma and Statistical Tools): Part 1
In this first of many columns covering my "Twenty-Five Essential Skills Every Engineer Needs to Learn," I will expand on each of those skills. To read the introduction to this series, which published in the January issue of The PCB Magazine. As a quick recap, here are the 25 skills that I will be writing about over the next 18 months or so, to publish every three weeks or so in the PCB007 Daily Newsletter.
IPC’s Fern Abrams: Keeping up with Regulatory Matters
Recently, I met with IPC’s Director of Regulatory Affairs and Government Relations, Fern Abrams. In the course of our conversation, we delved into everything from what her role entails and recent regulatory matters, to some of the group’s successes and why companies need to get involved (it matters to your representatives in Congress or Parliament).
Dave Bergman: IPC’s Technology & International Reach
I met with the IPC’s VP of Standards and Technology, Dave Bergman, while in Chicago recently. I’ve known Dave for almost 30 years, so we had quite a chat, covering a lot of ground, from the efforts of IPC China and IPC India, to the standards activities that are certainly the core activity of IPC.
A Conversation with IPC President and CEO John Mitchell
I-Connect007's Patty Goldman was able to sit down with John Mitchell, president and CEO of IPC, to discuss the organization and where we are going as an industry. We discussed IPC’s four aspirational goals—standards, education, advocacy and solutions—as well as short-term goals. We also talked a bit about going virtual and becoming paperless.
The Associations Issue
Well, it’s the end of the year. How did that happen? It really is true that every year goes by a little faster. You young whippersnappers out there won’t know what I’m talking about, but just you wait and see. We changed it up for our December issues this year. Instead of doing a year-end review, we decided to devote this month to our associations and trade organizations—at least some, because when you start poking around, you will find there are scads of them.
MacDermid’s Research Team Talks New Cyanide-free Immersion Gold at SMTAI
While at SMTAI in Chicago recently, I met with two of MacDermid’s research team, Jun Nable, research project manager, who has been with MacDermid since 2007, and Cherry Santos, associate research fellow responsible for formulation work for metal plating solutions. We talked about the posters they were presenting and why they chose SMTAI.
Catching up with Winonics’ Mark Eazell
I have always thought of Winonics as one of the hidden gems of the North American PCB industry. Their well-equipped and well-laid-out facility in Brea, California is one of the more impressive looking PCB facilities in North America today. Winonics is one of three PCB companies owned by JR Controls, the other two being Cosmotronic and Bench2Bench. I had the opportunity to talk with Mark Eazell, the general manager at Winonics, who also oversees the operation of all three JR Controls’ PCB companies.
Behind the Scenes with IPC Technical Conference Coordinator Toya Richardson
I have known and worked with IPC Technical Conference Coordinator Toya Richardson for quite a few years, but we have never had an in-depth chat about her job at IPC. In this interview, she talks about her work at IPC, their preparations for the upcoming IPC APEX EXPO 2016, and some of the latest developments at IPC.
productronica 2015: Ventec's Latest Developments in the UK
Ventec continue to invest in the pursuit of ultra-cleanliness in pre-preg fabrication and packaging in their UK distribution operation, and announce a range of complementary consumable materials - foils, drill boards and release films - as proven in their Ventec-Option laminating and drilling service, leveraging their purchasing power and sharing the cost benefits with their laminate customers.
Navigating the Global Materials Supply Chain: A Roundtable Discussion
At SMTAI recently, I-Connect007's Andy Shaughnessy sat down for a roundtable discussion with some key players from the materials side of the supply chain. Participants included two executives from Ventec: Mark Goodwin, COO USA and Europe for Ventec International Group; and Jack Pattie, president of Ventec USA. Also participating in the roundtable were Schoeller Electronics CEO Michael Keuthen and Bob Willis, from the National Physics Laboratory (NPL).
All About Flex: Flexible PCB: What’s in a Name?
Flexible PCB is a common term that is synonymous with flexible circuits. While the term “PCB” is generally used to describe rigid printed circuitry, “flexible PCB” is a little contradictory because “boards” aren’t really flexible. Some companies, like All Flex, design and manufactures flexible PCBs, but not rigid PCBs.
Flex Talk: Thoughts on the IPC Flexible Circuits–HDI Forum
As an attendee at the IPC Flexible Circuits–HDI Conference held October 28–30, I found myself in a room full of people, all eager for technical information, with the opportunity to reconnect with industry friends and to make new connections. The audience was diverse with young people, new to our industry, sitting alongside industry veterans willingly sharing their knowledge and passion for HDI design and flexible circuit technology.
Catching Up with Circuit Connect
When I met with Circuit Connect President Bob Lazzara and Director of Operations Paul LaLiberte, I was first struck by the passion they both have for their customers, as well as for their customers’ businesses, using the innovation they have today, as well as what they can develop together with their customers. They don’t just invite, but urge their customers to come and visit them in their very well-equipped facility in Nashua, N.H.
All About Flex: Flexible PCB: What’s in a Name?
Flexible PCB is a common term that is synonymous with flexible circuits. While the term “PCB” is generally used to describe rigid printed circuitry, “flexible PCB” is a little contradictory because “boards” aren’t really flexible. Some companies, like All Flex, design and manufactures flexible PCBs, but not rigid PCBs. There are many similarities between the two, but also significant differences.
Designs on Flex: Underwriters Laboratory and Flexible Printed Circuits
Underwriters Laboratory is a worldwide safety consulting and certification company headquartered in Northbrook, Illinois. UL certifies, validates, tests, inspects, audits, and advises on safety of electrical and electronic products.
Mr. Laminate Tells All: Where in the Holy Halogens did 900, 900, 1500 Come From?
The 900, 900, 1500 is not a combination to an enormous safe that contains the remains of Jimmy Hoffa, nor is it the weight of three elephants at the San Diego Zoo in kilograms. The 900, 900, 1500 is the maximum parts per million (ppm) of bromine and chlorine and the total bromine and chlorine in a material that can be defined as “halogen-free” in the electronics industry today. But where did these requirements come from? Clearly, 900 ppm of bromine or chlorine is obviously not halogen-free. Some would argue that it is not even low-halogen at all.
Catching up with Cosmotronic’s Gary Abel
Cosmotronic’s history spans a number of decades, from the hot-as-hell boom days of the '60s and early '70s when Southern California was leading the world in electronics, from weaponry to avionics to apace exploration. Today, as innovation has become more focused on personal electronics, Cosmotronic has been there, leading the way and serving a customer base that is uniquely similar to the one they had back in the day.