Maximizing Circuit Flexibility

March 16, 2017

One of the key design advantages of using a flexible circuit is that it can be bent, folded or twisted in just about any way imaginable.  As part of a Marketing initiative, All Flex built several origami figures using flexible circuits to demonstrate this characteristic. The ability to flex creates...

Shop Floor Documentation

March 7, 2017

Manufacturing shop floor documents are as set of work instructions and procedures detailing the methods for building, testing and inspecting a product; assuring that the product will meet the design and performance requirements of the part number.  To achieve industry certifications such as ISO 9001, AS9100C or MIL-P-50884, documentation systems...

Computer Aided Design for Flexible Circuits

February 25, 2017

In order to define and subsequently fabricate a flexible circuit, a set of electronic documents known as CAD files must be created.   These files contain all the data needed for each software controlled machine to perform its required process step.  The type of data a circuit supplier receives from a...

Considering a Flexible Heater?

February 20, 2017

Custom flexible heaters are available in an infinite variety of sizes, shapes and materials. The most common flexible materials are polyimide and silicone rubber. While silicone rubber has traditionally been thought of as the higher temperature flexible heater option, recent advances in polyimide based materials have allowed high performance heater...

FAQ for Extended Length Flexible Circuits

February 13, 2017

Extended length flexible circuits are larger than “typically” offered sizes in the interconnect industry.   The length of these oversized circuits can be anywhere from 2 feet to 10 feet or longer.   A long continuous flexible circuit can offer design advantages over using normal sized circuits where multiple connections and connection...

Flex Circuit Stiffeners

February 1, 2017

Many flexible circuit designs require selectively bonded stiffeners…they’re just too flexible!   Stiffener materials can be any number of materials, but they are usually polyimide films or FR4 glass/epoxy substrates and are available in a wide variety of thicknesses.  Three dimensional metal stiffeners may also be attached for thermal dissipation properties....

Flexible Circuit Costs

January 26, 2017

As a general rule, flexible circuits are considered more expensive than rigid printed circuits. While materials are modestly more expensive, the ability to automate handling procedures with rigid PCB’s is probably a bigger factor to driving costs down. A higher level of rigid PCB fabrication automation, combined with larger volumes...

Volume Considerations for Flexible Circuits

January 11, 2017

With any new electronic interconnection project, one immediate question for consideration is the expected program volume. Low, medium and high volume have different meanings to different people. In the world of flexible circuit processing, this numerical question is complicated by the panel process manufacturing methods used to produce printed circuits....

Understanding Dimensional Stability in Flexible Circuits

January 5, 2017

The material sets used for fabricating a flexible circuit are different constructions vs. the materials used for rigid hardboard circuits.  While glass epoxy is used to build most rigid printed circuits, polyimide is the material of choice for the vast majority of flexible circuits. Glass epoxy is produced in some...

Creating a Flexible Circuit Cutline

December 23, 2016

The perimeter dimensions of a flexible circuit are often referred to as the cutline.  The cutline can be created by a number of processing techniques and tooling options.  The following are considerations in determining the best technique for creating the cutline. Size and Shape: Some parts could be less than...

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