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Epec's Blog | Electronics Manufacturing Solutions


What to Know Before Shipping Lithium Batteries

Written by Anton Beck
Posted on April 1, 2020 at 9:44 AM

If anyone questions why there's concern about transporting lithium batteries, refer them to the Federal Aviation Administration. Between March 20, 1991, and April 1, 2019, they logged 254 airline and airport incidents where a lithium battery either started smoking, caught fire, or exploded.

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What Are Gerber Files and What Are They Used For?

Written by Michael Concepcion
Posted on March 26, 2020 at 10:22 AM

After an engineer has finished their circuit design for a printed circuit board (PCB), the next step is to enter the schematic details into a computer-based schematic capture program such as Altium, Eagle, or OrCAD. The finished printed circuit board will provide the physical assembly and interconnection platform for the various electronic components required by the schematic.

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Minimum Flexible PCB Specifications Needed for an Accurate Quote

Written by Jim Marsh
Posted on March 20, 2020 at 10:43 AM

In the rigid printed circuit board (PCB) world, you can easily generate a quote with cookie cutter specs, such as 0.062” thick, with FR4, green soldermask, and white silkscreen. With those standard specifications, you could quote a huge number of rigid PCBs.

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5 Tips to Operate LCD Displays in Cold Environments

Written by Steven J Goodman
Posted on March 12, 2020 at 10:57 AM

The use of liquid crystal displays (LCDs) in user interface assemblies is widespread across nearly all industries, locations, and operating environments. Over the last 20 years, the cost of LCD displays has significantly dropped, allowing for this technology to be incorporated into many of the everyday devices we rely on.

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Common Prototype vs. Production Failures in Flexible Circuit Boards

Written by Paul Tome
Posted on March 6, 2020 at 9:44 AM

The argument can be made that the toughest environment for a flexible circuit boards is the prototyping phase of the design development. During this process, the circuit is potentially installed and removed multiple times as the form, fit, and function are evaluated and qualified. There’s the opportunity for the flex circuit to be inadvertently mishandled, dropped, bent beyond the design limits, etc.

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Using Rigid-Flex PCBs to Improve Design Reliability - Q&A

Written by Paul Tome
Posted on March 3, 2020 at 9:46 AM

At the conclusion of our webinar, Using Rigid-Flex PCBs to Improve Design Reliability, we had several questions submitted to our presenter, Product Manager of Flex & Rigid-Flex Circuits, Paul Tome. We compiled these into a readable format on our blog.

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UL Cable Harness Design: Low-Risk Wire Options

Written by Steven J Goodman
Posted on February 26, 2020 at 10:44 AM

One of the first steps in designing a custom cable assembly is selecting the wire. There are lots of options to choose before the design can be frozen. Selecting a UL spec wire can be challenging if you are unfamiliar with the standards but knowing just a few options allows for a simplified design.

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Flex Circuit Design Challenges: Electrical vs. Mechanical

Written by Paul Tome
Posted on February 18, 2020 at 9:21 AM

Flex and rigid-flex circuit boards are a combination of both electrical and mechanical requirements that allow for solutions to many tight packaging requirements. However, this combination is also the potential source of design challenges as some electrical requirements can have a negative impact on the mechanical bend capabilities of flex circuits. If not, correctly addressed the reliability of the finished design may be compromised.

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Battery Charging: What to Know to Successfully Charge Your Batteries

Written by Anton Beck
Posted on February 12, 2020 at 9:37 AM

Rechargeable batteries are everywhere. From the laptops we type on to the portable medical equipment used to perform examinations or provide health record information, rechargeable batteries help to provide products and services to make our lives better. However, not many people know about what goes into recharging a battery in the correct manner, the right charger for certain battery chemistries, and where a battery management system (BMS) fits into the process.

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EMI and RF Shielding Options for Flexible Circuits

Written by Paul Tome
Posted on February 4, 2020 at 9:03 AM

Flexible circuits, like other electrical interconnects, are subject to either receiving or emitting electromagnetic (EM) and or radio frequency (RF) interference. For critical designs, if allowed to occur, the performance of the assembly, or that of other local assemblies, can be compromised to the point of becoming non-functional. The difference between EM and RF interference is the frequency of the “disturbance,” with RF being in the radio frequency range and EM being typically 500 MHZ and higher. There are many potential sources of both types of interference within an assembly.

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