Bruce Sinclair interviews Edy Liongosari, Managing Director, Accenture Technology Labs

Download our special report, IoT Tech and How to Buy It:

The Internet of Things is making available a variety of new business models. One that has the biggest potential to radically change the competitive landscape is the outcome-based business model.

Watch this video to also hear Edy’s thoughts on:
•Percentage of Fortune 1000 companies who have started their Industrial Internet of Things
•The similarities and differences between the RFID industry and that of IoT
•One of the biggest issues in IoT security
•The place of the Cloud in IoT

To see more details and notes from the interview, visit:

Visit our website:
Listen to our podcast on iTunes:
Follow Bruce:
Subscribe to our YouTube channel: IoTIncBusiness
Attend our Meetup onsite or online: Source

IoT PCB things to consider for Startups

Because IoT appliances are so cutting edge, you would consider that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and going through a whole lot of technical difficulties. That is most certainly not the case.

Nonetheless it doesn’t convey IoT startups have a obvious route to fame and fortune. Facing them is quite a lot of design and manufacturing considerations which are different to these small products. These factors have to be thought of for the fresh new IoT product to ensure success.

On the plus side, it’s vital for IoT startups to recognise that the basic foundation for a successful cool product exists. This simply means experience and knowhow regarding the design, fabrication and assembly of these complex products are readily available. And the most sage advice is for sensible IoT product business men and innovators to heed the recommendations that seasoned electronics manufacturing services or EMS vendors have to give. These companies and also their engineering staffs already have performed the job with revolutionary IoT corporations in Silicon Valley entering the first stages of this promising field.

The PCB of an IoT unit is a different beast than the traditional one, which is greatly larger and flat. IoT gadgets, on the flip side, are made up generally of either rigid-flex or flex circuit assemblies, which include their very own categories of design layout, fabrication and assembly factors and subtleties.

PCB PWB Design Layout Fab Assembly


A primary factor is to search for experienced designers who’ve accomplished quite a lot of rigid-flex PCB designs. PCB space for an IoT unit is confined. So you want the designer to have firsthand layout expertise to productively design critical parts on that compact area.

Besides that, almost all IoT devices are not fixed; they bear substantial movement and folding. Here, the experienced designer plays a primary role in figuring out bend ratios and lifecycle iterations as a important part of a design. Additional critical design layout factors involve signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are widely-used on flex circuits to be certain that parts installed on the flex circuit remain firmly in position in order to avoid movement.

An alternative thing to consider is through-hole element placement in rigid-flex circuits. Why is that crucial? Virtually all of IoT units are founded on surface mount device(SMD) placement. Nevertheless , there can be through-hole parts, which are commonly positioned on either the rigid portion or the flex portion of the board. Through-hole parts are in most cases helpful to communicate input/output or I/O signals to the outer world. That way, those signals can show up having an LCD or LED monitor. Through-hole element placement is a critical thing to consider in an IoT unit due to the fact when used on the flex part of the board, suitable stiffeners must be designed and employed for effective assembly.

At last in the layout category, the heat which parts generate ought to be considered. IoT devices are ever more sophisticated with rigid-flex and flex circuits featuring up to 12 to 14 layers. Several devices are digital. Nevertheless , more and more analog products are being exercised in IoT products. Analog circuitry stimulates considerably more heat than digital ones. This indicates heat expansion plus contraction rate should be considered. In tech lingo, that is termed as the Coefficient of Thermal Expansion or CTE and the appropriate control over it.

PCB PWB Design Layout Fab Assembly


Deciding on the best fabricator is crucial and is linked to the EMS enterprise you have chosen. The fabricator you expect should have IoT PCB fabrication experience. Amongst critical factors here are insuring intense adhesions between layers on both rigid and flex circuit sides, understanding all the vital calculations and possessing an excellent comprehension of when current moves from the rigid side to the flex side.

Such fabricators must also possess an in-depth understanding of exceptionally little components for instance 0201 as well as 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

Furthermore, they ought to have knowledge of designing boards with highly tight tolerances in terms of footprint for those sorts of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They must have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT devices could be so modest that a regular drill size of 5 to 8 mils will possibly not be all you need. They may require to go to a 3 mil, meaning you need to have an leading-edge laser drilling capability indoors.

In the event you’re placing via-in-pad, it is a easy way to take advantage of the small land that’s available on the rigid-flex board, nevertheless , it produces difficulties for assembly. If vias are not entirely planar or flat in shape, it might be challenging during the assembly of those tiny BGA packaged devices. This is because non-planar surfaces could threaten the integrity of solder joints.

Sometimes via in pads leave bumps in the event they’re not scrubbed effectively after installing the vias and gold finish at the top. In case there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices may not be an excellent joint. It might create spotty connections, which might be a bigger issue to handle and fix. It all boils down to which EMS enterprise you’re choosing because they’re the ones who will select the fabrication house to make a prosperous IoT device for you.

PCB PWB Design Layout Fab Assembly

PCB Assembly

It’s crucial to head off to experienced EMS companies that have productively assembled IoT and wearable PCBs as they have special tooling and fixtures readily out there, which are required for assembly to reassure components are placed perfectly, precisely and the printing is finished perfectly.

Printing is usually a headache for IoT products. If it’s a rigid-flex board, then there’s a change between thicknesses of the rigid and flex circuit portions, that means a special fixture is required to retain the complete rigid-flex board planar or absolutely flat to allow for effective printing to be accomplished.

Startups must be ready to opt for the right manufacturing partners and EMS businesses. By doing this they can assure they’ve ample experience ahead of time to get the multitude of design, fabrication and assembly details successfully performed since they are crucial to a thriving and timely IoT product launch.

Leave a Reply

Your email address will not be published. Required fields are marked *