PCB layout service

PCB layout service

Rigid Flex PCB Basic Layout Guidelines

As technology changes and evolves, the printed circuit boards that enable devices to work have to evolve as well. With this trend, investing in PCB layout service is more important than ever before as it can save you both time and money. Durable rigid flex PCBs are able to withstand today’s challenge of flawless performance, regardless of the application.

Rigid flex circuit boards are a hybrid of all the best qualities of the rigid and flex circuits boards. These hybrid circuits provide better quality control and more design options. Organizations that produce aerospace, medical, automotive, military, and consumer electronics, are increasingly utilizing the versatility of rigid-flex PCBs.

When designing and building a rigid-flex circuit board, there are a few basic layout guidelines that can help to ensure consistent quality, while still adhering to production timelines. Here is an overview of the guidelines to follow when building a rigid-flex PCB.

Insulate with Bondply:

Take the time to insulate the rolled-up copper cladding that is used within the flex layers of a rigid-flex PCB. The bondply prevents the copper from becoming brittle over time.

Adjust Via Spacing:

The best way for pliable flex materials to remain stable is to place vias 50 millimeters from the edge of the rigid area, adjacent to the flex ribbon. This distance is greater than that found in rigid-only stackups, but it is essential to retain stackup stability.

Alternate Flex Traces from Layer to Layer:

For the PCB wiring to continue functioning as intended, ribbons need to remain flexible. In order for this to happen, traces cannot be positioned on top of each other, layer upon layer. Instead, stagger the traces vertically to allow for optimal ribbon flexibility.

Adapt Adhesive Application:

Be aware of where adhesive is being placed. Do not apply adhesive to the bendable parts of circuits that have more than four flex layers.

At BESTProto we know the best practices when providing PCB layout services and assembling PCBs. If you are looking for PCB assembly services or want to know more, visit bestproto.net today.

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PCB layout service

The Fundamentals of PBC Layout

Printed Board Circuits are the backbone to electrical devices, and the connections made between components lead to electrical signals. Poor functioning design can lead to problems along the production line, which is why there are some key fundamentals to be aware of when designing a PBC layout.

PBC Design Flow

There are four specific steps used by a PCB layout service to create a functional design flow:

Step 1

is Part Research and Selection, which evaluates the physical components and examines how each part will function within the design cartography.

Step 2

is Schematic Capture and Simulation, and this process involves capturing the circuit components and linking them together to form the substantive design as well as simulating the circuit to analyze the signals and behavior of the components.

Step 3

is the Board Layout, and this is comprised of placing all the physical components and integrated circuits onto the circuit board and checking the form factor of the PBC.

Step 4

is Verification and Validation, which implicates a two-step process of a prototype test and manufacturing test to verify the design meets the original blueprint and proper testing standards for the customer.  

PCB Design Optimization

Optimize the design by organizing the circuits into segments in congruence with function.  Group each section to maintain short conductive traces. Arrange the path of electrical current on your board to be linear.  Lastly, sustain a star configuration so that the components get equal voltage in equal length.

Thermal Issues

The most optimal thermal design for a PCB will produce equal temperature across the whole board. Achieving proportionate thermal conduction is by using copper planes and thermal vias as follows to distribute the heat evenly thus lowering the temperature of the PCB.

Test a PBC for Functionality

Decisively test the PCB to check all available outlets making secure that all components are functioning as designed. Do white-box and black-box testing to analyze the inputs, outputs, and any pathways to ensure no failing components.

BESTProto uses advanced software to create PCB layouts. If you’re interested in a PCB layout service, our staff will work with you through every stage of the process.

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