09-05-2023

Drilling is one of the most fundamental steps in the printed circuit board manufacturing process. Until the advent of the through-hole, PCBs were all single-sided with traces and components located on one side. With double-sided and multilayered boards so common now, a PCB without holes doesn't seem like a PCB at all. The drilling process creates the holes that connect the different layers of the PCB. Those holes allow for the connection of components. In fact, without holes, a double-sided PCB is just a coaster.

07-26-2023

If someone asks at your next backyard barbecue, “How is work going?” it might not be gripping to say, “I am improving processes to realize efficiencies based on the ISO 9001 framework.” Unless, like me, they are also an ISO nerd. While that’s what I’m doing at work, perhaps a more engaging answer would be, “We have turned quality improvement into a game that everyone on the production team can participate in.”

06-21-2023

Ill-fitting parts can frequently cause delays and cost overruns, and undermine PCB performance, durability, and overall quality of the board. These poor results can be avoided. Here are five methods designers can implement to avoid common, parts-related manufacturability pitfalls.

05-18-2023

Let's learn about annular rings, because a greater understanding can help ensure that your PCB designs successfully become physical boards. The annular ring is the space between the drill hole and the edge of the pad—a specified minimum gap around the drill hole. Don't get the impression that an annular ring is a separate part. The term is used to describe the portion of the copper pad that remains after a hole is drilled through the pad. The annular ring of a pad is measured from edge of hole to edge of pad.

04-27-2023

For electronics manufacturers, consistently producing quality products is the baseline for success. Even as pressures created by supply chain disruptions and labor scarcity persist, organizations need to focus on continuous improvement to remain competitive. In this effort, manufacturers should challenge themselves by constantly seeking to make operations run better, increase profitability, and improve the customer experience. By focusing on activities that move the performance needle, organizations can attain a higher state of production excellence.

03-27-2023

Innovation is everywhere we look these days. From Apple’s air tag luggage tracker to robot vacuums to gadgets that will feed our pets, innovative electronic devices are changing how we live. Though these devices serve a wide range of needs, they all have two things in common: They need innovators to imagine them and printed circuit boards to make them operate. My experience and expertise keep me focused on the PCB manufacturing component of innovation, but it is important to sometimes step back and look at the bigger picture.

03-01-2023

PCBs power all sorts of innovative devices, everything from virtual reality headsets to drones, but our industry isn’t all about fun and games. Advances in practical technology have also changed the face of manufacturing and logistics. But none of these breakthroughs have been more life changing for the average person than in the areas of health, wellness, and medical treatments. PCBs have become the backbone of all effective, efficient, and safe personal health medical devices. Electronics and computer technology are enabling medical breakthroughs that help identify and treat illness more quickly and accurately, as well as provide advanced monitoring for patients during recovery.

02-09-2023

As handheld and wearable technology become vital tools for industries ranging from health services to law enforcement, innovation increasingly coincides with PCBs getting smaller. For these devices, multilayered PCBs offer requisite functionality for boards occupying a small space. Multilayer PCBs enable more circuitry, components, and functionality to fit in a smaller space compared to single-layer or double-sided PCBs. Without them, miniaturization would be much more challenging and many of our coolest projects would rapidly become too clunky and unwieldy.

01-12-2023

Here at Sunstone, we are 100% committed to both keeping our employees safe and doing well as a company, but each of us, like you, deal with life struggles and changes differently. We continue to concentrate on the current best practices for keeping our employees safe while keeping quality work as a top priority; providing a remote work option for our employees has been one such effective strategy. It brings me great joy to report that, so far, we have effectively maintained both the health and employment of all our employees. As I was recently reflecting on this, I wanted to ask Al Secchi, our global customer support and sales manager, what he has learned professionally these past two years.

12-09-2022

Heat sink failures can be difficult to detect, especially when the failure rates are low. But even if the volume of failures is low, those costs quickly run into thousands of dollars. One of the primary causes of heat sink failure is inconsistent soldering of thermal pads. Given the cost of reliability problems, finding a path to improvement is crucial.

10-19-2022

The production team is always excited when the first shipment of boards for a new electronic device comes back from the PCB manufacturer. Anticipation builds as the engineer connects the first set of components, puts everything together, and gets ready for that first test. But when something goes wrong—a tiny pop, a sizzle, a puff of smoke or nothing happens at all—the mood can turn from excitement to frustration. Where did the process go wrong? Here, Matt Stevenson provides several commonsense tips for avoiding these types of situations.

09-22-2022

One of the most amazing advances in PCB manufacturing technology has been the advent and usage of laser direct imaging (LDI) technology. For PCB manufacturers, this technology has been a game changer, helping to reduce costs, speed production, and improve quality. Though the LDI revolution began more than 20 years ago and usage of film for image transfer has reduced by half in that time, there’s still room for more PCB manufacturers to invest in this powerful tool. As an image department team leader and ISO process owner, Trina Taylor has seen firsthand the benefits of laser direct imaging for both my team and our customers.

08-16-2022

Controlling impedance is critical to signal integrity and board performance in devices powering everything from high-speed digital applications to telecom and RF communication. It is common practice for designers to include impedance-related notes with their PCB designs and rely on the manufacturer to determine the proper trace parameters. This inherently passive methodology often leads to delay, cost overrun, and even batches of useless boards.

08-11-2022

Manufacturing yield is a key measure of quality in PCB manufacturing. Measured as a percentage of good parts relative to the total produced, achieving 100% yield rates is extremely challenging for anything but the simplest PCB designs. Most PCB manufacturers produce less than a 95% yield, eating the cost of discards and re-designs. PCB manufacturers can take steps to improve yield rates. It is possible to achieve over 98% yield rate by addressing common manufacturing errors, improving safety and quality in tandem, and integrating a Lean approach to all processes.

06-21-2022

Here we are in the 21st century, technology abounds across all sectors, and it continues to grow. Advances in wearable technology, vehicles with driver assistance features, and integrated smart home electronic devices continue to drive demand and innovation in the PCB industry. The product development teams tasked with taking these technologies from design into reality are often stuck using procedures from the last century.

06-02-2022

To be effective at PCB design and layout, individuals need to become proficient with the different tools of the trade. Parts libraries are among of the most important. PCB design and prototyping is a critical component of electronic product development. Being faster to market has always been a competitive advantage and a focus for electronics manufacturers. With persistent marketplace uncertainty and supply chain disruption creating delays, in-house PCB design offers a way to accelerate electronic product development projects.

04-26-2022

The worst part of the global COVID pandemic brought unpredictability and uncertainty to an otherwise stable PCB Industry. Like many in the board business, Sunstone faced increasing demand from essential businesses while also dealing with inconsistent employee availability and social distancing guidelines that slowed the manufacturing process. We knew immediately that even though the status quo had worked to this point, the situation was not temporary, and the operation would have to adapt.

03-31-2022

Demand continues to increase for boards used in consumer electronics, intelligent machines used in manufacturing, and smart devices for health services applications. Our industry needs more smart people designing PCBs to help drive artificial intelligence (AI) initiatives and power the Internet of Things (IoT), which is why we are welcoming new designers into the fold every day.

02-24-2022

Design and manufacture of PCBs for radio frequency (RF) technology is a unique animal. RF had been considered a niche, thought of only in terms of television broadcasts, commercial airline phones, and military radar systems. Now, light industrial and consumer applications ranging from remote meter reading to home security systems are just the tip of the RF iceberg.

12-16-2021

Today’s PCBs increasingly have to operate in challenging conditions. Whether it’s an iPad hot to the touch after several hours of gaming or a drone slicing through smoke and debris to monitor a wildfire, boards need protection from the elements. That’s where solder mask comes in. Solder mask coats your whole board (apart from the solder pads) so the PCB doesn’t react with the atmosphere and lose chemical properties through oxidation. It also prevents contamination from dust and debris that may settle on the board and create shorts. Solder mask prevents bridging between features during wave reflow assembly, limits external conductive influences and helps ward off voltage spikes.

11-12-2021

I have always been fascinated with chemistry and chemical processes. My first degree was in chemistry and my first job out of college was in the PCB manufacturing shop in the analytical chemistry lab. During my initial tour I was so surprised with just how many chemical processes there were in PCB manufacturing. I discovered that some of the most critical elements of PCB manufacturing involve chemical processes. Chemicals clean the copper in preparation for the coating that prevents oxidation, and again to remove contaminants before solder resist application.

10-28-2021

Converting to Gerber is one way to perform a double check of your PCB design that can pre-answer questions from your manufacturing partner and pre-solve problems with the boards themselves.

09-23-2021

We asked an expert what factors designers should consider as they lay out their boards.

08-11-2021

Losing track of voltage in your PCB design can lead to explosive problems. Your CAM tool will not manage split planes for you.

07-21-2021

Size constraints, functional requirements, and environmental factors can make selecting PCB thickness difficult. Here we will examine best practices for choosing board thickness that results in quality, highly functional PCBs.

06-10-2021

Our ongoing mission: To explore more manufacturable designs, to seek out higher-quality boards and enhanced functionality, to boldly design PCBs that no one has designed before.

05-17-2021

The final surface finish of a PCB is an important consideration. This coating between your components and the bare board is applied to ensure solderability and protect any exposed copper circuitry. Selecting the right type of surface finish can be daunting, and for good reasons.

04-13-2021

Delivering the required power to each component on a PCB can be a complex challenge. Designers have to manage converting AC to DC while also delivering the correct voltage and current to each component. A well-designed PCB results when the designer takes power supply seriously—paying close attention to the effects that power delivery can have on surrounding components, such as through heat management or signal interference.

03-11-2021

Demand growth is fueled by business as well as consumers, with pandemic-accelerated healthcare and industrial machinery applications leading the way. IoT devices of every stripe will continue to improve and add functionality while also becoming smaller, lighter, and faster.

12-09-2020

As we approach the end of 2020, we are able to look back on one of the most challenging years that I have ever experienced. Throughout these trying times, Bob Tise and Matt Stevenson were consistent in their desire to share knowledge with everyone. Matt shares a synopsis of the topics they shared from the perspective of a PCB manufacturer.

11-11-2020

How are you holding up these days during the pandemic? Each of us is dealing with life struggles and changes differently. With this in mind, Matt Stevenson asks Al Secchi, global customer support and sales manager, what he has learned professionally from the pandemic and how to serve customers.

10-19-2020

A ball-grid-array (BGA) device can be a daunting component to route, especially in fine-pitch arrays featuring solder ball counts in the hundreds and pitch values as tight as 0.5 millimeters. Bob Tise and Matt Stevenson describe how you can take the mystery out of BGA routing and create a PCB design that can handle all those pesky narrow spaces.

09-21-2020

The tool that defines PCB designers is our CAD software, and many discover quickly that not all CAD tools are created equally. Bob Tise and Matt Stevenson answer the question, "How can designers find the right CAD tools to fit their particular methodology and needs?"

08-12-2020

In this column, Bob Tise and Matt Stevenson explore the world of electrical testing. They examine a variety of testing methods, what options to look for in a PCB manufacturer, and how to ensure that you're getting the best value out of the electrical test options available to you.

07-15-2020

Offshore board production has long been considered an effective way to reduce the cost of producing electronic devices here at home, but those savings often demand a higher tolerance for delivery issues and come with lowered expectations for quality. Bob Tise and Matt Stevenson explain.

06-06-2020

Innovation comes in many forms and from more places these days. Bob Tise and Matt Stevenson discuss how innovative electronic devices all contain PCBs, and share pro design tips for bringing new products to the market.

05-29-2020

No matter how simple or complicated your electronic project, PCB prototyping is part of its journey from concept to reality. This process of turning the design into something physical can teach you a lot about what needs to be tweaked and improved before your PCB is ready for full production. Bob Tise and Matt Stevenson explain how before you can prototype, you have to design.

04-04-2020

Our increased focus on health and wellness drives technology advancement for personal devices and those used in the delivery of healthcare. Bob Tise and Matt Stevenson explain how this trend also drives both PCB production innovation and a long-overdue update of the employer/employee relationship.

03-16-2020

PCB etching seems like a simple task on the surface, but quite a few things can go wrong during this process. Adhering to best practice and continuous improvement is a must to help avoid issues with your finished board. Bob Tise and Matt Stevenson share their design tips for a better etching process.

11-19-2019

You're probably thinking: “Bob can’t possibly write an entire article dedicated to the use of copper in PCBs.” To that, Bob says, “Hold my beer.”

11-06-2019

To the procurement clerk, a PCB may seem like it is just a line item on a bill of materials (BOM) or parts list during the production of an electronic device. At Sunstone, we know differently. The PCB is the building block for all of the components and parts in your electrical project.

10-09-2019

You can save time, money, and effort if you are aware of the impedance math when you sit down to design your board. Gain this awareness by using a good impedance calculator, and you can build the right tolerances into your design. Impedance testing becomes a double-check of your work instead of the tool you rely on to tell you if your documentation is correct. Documenting impedance requirements properly is more onerous than most people realize. Though it seems simple, PCB documentation is a details game that often leaves knowledge gaps for your manufacturer.

09-03-2019

We are well into the second year of tariff-centric trade policy, and one thing appears certain—uncertainty is here to stay. Though most of the media focus has been on cars and steel or consumer prices and corporate profits, the enduring challenge for both the electronics and PCB industries has been maintaining reliable global supply chains.

08-01-2019

When you send your design for manufacturing, your partner does not know what type of device the board will be part of nor the conditions in which it will have to perform. It’s common for harsh environments or exposure to mess up a board’s performance. If you call out materials that will not tolerate the end-product’s operating environment, bad things can happen—such as a smoking board, for example. Be sure your board can tolerate thermal stress or solder joints risk breaking and damaging components.

07-09-2019

Is the world ready for the consequences of rapid automation? Will the use of robots displace entire categories of workers? Can artificial intelligence really “think”? How will manufacturing, including PCB manufacturing, be affected by all of these smart robots? These questions actually come from a pamphlet published in 1955: "The Age of Automation: Its Effects on Human Welfare."

05-30-2019

Gerber files can reveal design issues ahead of the quote process and ensure your manufacturer has everything needed to produce your boards correctly. After consulting with Engineering Support Specialist Eric Haugen, we explored some best practices for making sure that Gerber files are accurate.

05-16-2019

At a recent Sunstone Circuits planning summit, Matt Stevenson, VP of sales and marketing, and Bob Tise had a wide-ranging discussion about emerging technologies and how they will impact PCB manufacturing. The following is an abridged transcript of this conversation.

04-09-2019

Sunstone Circuits was eager to return to MakeHarvard as a sponsor and creator of a competition category this year, also serving as both mentors and competition judges. If you were there, you saw us—we were hard to miss in our bright orange vests. As mentors, we were out and about helping students and answering questions.

04-01-2019

Managing split planes? Your CAM tool will not do it for you. We see this almost every day—not exploding PCBs, which pretty rare—but rather problems created by having more than one voltage on a power plane layer. From where we sit, this is one of the more insidious and costly challenges facing PCB designers.