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Innovation comes in many forms and from more places these days. Last year, the staff of Popular Science locked themselves in a room and came up with their annual list of 100 greatest innovations. These technology advances will shape how we live and work in the coming years. Included were products like Omrom’s HeartGuide, HTC’s VIVE Pro Eye and Pro Display XDR by Apple, as well as the national rollout of 5G cellular from all four mobile carriers.
Breakthroughs result when visionary individuals and organizations identify needs that are not being served, platforms that can be improved, or entirely new products capable of transforming daily life. What do these electronic devices and an industry-wide technology shift have in common? They are all innovative and they all contain PCBs.
Whether it’s a new electronic device or advancement of broader technology infrastructure, moving from idea to innovation requires process — the journey from concept to design to prototype — and finally manufacture. Bringing innovation to market requires many skills across multiple disciplines, all working together. From mechanical and electrical engineering to sales and marketing a team needs to have all these resources available to them in order to be successful. PCBs are at the heart of these products and product innovation, making their design, prototype, and manufacture vital to success.
To the uninitiated, PCB design may seem like a rigid, by-the-book process. It’s not. Because it takes creativity to turn concept into design, PCB design is very much an art form. Granted, boards aren’t quite the same as blank canvasses and there’s nothing artsy sounding about schematics or a bill of materials or documentation. PCB design is a world filled with limits, tolerances, and parameters—in other words, rules. But, like in The Matrix, some of those rules can be bent and others broken.
When you focus on design as an opportunity to be creative, rather than a task standing between you and production, you put yourself in position to better fulfill on the promise of innovation.
Let’s start with components. Placement and use of components isn’t just pragmatic — there is also an element of creativity in their use. There is no single right way to place them, but there is something unspoken about the elegance and aesthetic beauty of well-arranged components. But it’s important to remember — and this is where The Matrix’s rules cannot be broken — that how you orient and organize components will heavily influence the manufacturability of design and ultimately the functionality of your finished board.
Leave the auto-router in charge and the results can be asymmetrical, even look and feel messy. These configurations are not easily manufactured and can lack when it comes to performance. It’s like a pilot who doesn’t know the destination of the flight. Use this tool as a compliment to your routing efforts, not a replacement for you.
If you have time, hand route the entire design. It will look more professional, work more efficiently, and be easier to update if you must rework a section of the board. If you cannot avoid having to auto-route some of the board, hand route the critical traces yourself, then auto route the remaining ones. In this capacity, the auto-router can help with schedule compression while also making the bulk of your non-critical connections. There will some messy routing and too many vias, plus editing will be harder down the road, but you’ll have something to work with much sooner.
Innovation increasingly goes hand in hand with PCBs getting smaller. A multi-layered PCB can offer requisite functionality if it occupies a small space in your device. If you have limited or no experience with multi-layer board design, the prospect of an attempt can be daunting. Multi-layer boards don’t have to be a hassle. Think of them as multiple single-layer boards stacked together!
To be considered an innovator — a profitable one at least — it’s important that you’re first to market with your product. This presents a seemingly compelling reason to head straight for full production, but designing your PCB is just step one for ensuring its manufacturability and eventual functionality. Prototyping is the critical next step in the process, one that can make you more confident about your production runs.
Some feel prototyping costs too much or it takes too much time or must be outsourced abroad. Even if you are in a hurry, prototyping makes sense. It also doesn’t have to cost a lot or happen five thousand miles away. We believe prototyping is vital to a smooth, successful production run. It cost-effectively validates manufacturability of design, helps avoid incredibly expensive mistakes during full production, creates more opportunities to innovate, and tests your boards for quality and durability.
Prototype fabrication services can vary and if you are working on something cutting edge, there are several critical elements to keep in mind. Many manufacturers offer feasibility assessment of your design to ensure PCB manufacturability and viability. This can help you avoid costly and unnecessary iteration during the prototyping phase. Layout review may uncover expanded manufacturing needs, so don’t be afraid to ask questions and make sure your prototyping partner uses process and equipment matching your desired speed of production and quality of the product.
In terms of time, money, and reputation, the cost of a do-over after assembly is more than at the design or prototyping phases—especially at higher volumes. A PCA with performance problems at this point could result in delayed order fulfillment, project cost overruns, or a competitor beating your product to market — a missed opportunity for innovation. That is why choosing your assembler wisely is so important. A reliable assembly partner will help you avoid costly failures associated with slipshod production, as well as defective and improperly installed components.
Moving your PCB design through prototyping, manufacture, and assembly is the journey within the journey for product innovation. Every part of it is a continuous learning process that offers opportunity for improvement. That’s what makes innovation both challenging and exciting.
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