Catalogue Flex Circuits Design Guide
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Minco Flex Circuits
Table of Contents
Introduction: Click below to view pages
How to Get Started.....................................3
Benefits of Flex Circuits.................................4
High reliability
Superior packaging solutions
Design Options.........................................5
Flex Circuit Design Process
Design Guidelines...................................6 - 9
Specification documents Manufacturing a flex circuit Cost impact of layer count Circuit types
Minco's General Capabilities.......................10 - 13
Standard specifications
Testing
Marking
Controlling impedance and electrical noise Conductor width nomograph
Standard Design Recommendations.................14 - 19
Design differences and special considerations How to improve flexibility and bend radius
Holes
Tolerances
Conductor width, thickness and spacing Materials
Value Added Design Options......................20 - 23
Terminations Stiffeners Forming Population
Custom and Integrated Components
Request a Quote..................................24 - 26
Providing information for a quote Specify testing requirements Artwork checklist Designing artworks CAD data guidelines
E2E — Engineer to Engineer...........................27
Early engineering involvement
Ordering and delivery.................................27
Place your order with Minco Delivery information
Glossary..........................................28 - 30
Next Steps............................................31
Purpose of this Design Guide
The purpose of this design guide is to enable you to design a highly reliable, flexible printed circuit optimized for manufacturability.
While using this guide, keep in mind that the design information provided is only a suggestion. Minco takes pride in manufacturing flex circuits considered difficult to build. In most cases, we do build above and beyond the "standard" circuit specifications, provided that the circuit design and type allow for it.
You are encouraged to contact Access: Minco Sales and Support at 763.571.3121 with your questions and concerns.
Types of Flex circuits
• Flex: Flexible version of Printed Circuit Board (PCB), with unique capabilities. Flex circuits offer the same advantages of a printed circuit board: repeatability, reliability, and high den­sity but with the added "twist" of flexibility and vibration resistance. The most important attribute compelling designers to adopt flex circuit technology is the capability of the flex cir­cuit to assume three-dimensional configurations.
• Rigid-flex: A blend of rigid and flex emphasizing the best of both constructions, adding synergistic capabilities neither possess. In its most typical configuration, the rigid-flex is as a series of rigid PCBs joined by integrated flex circuits (with emphasis on the high percentage of rigid area content). There are many excellent possibilities for circuits designed primarily as a flex circuit with the addition of integrated rigid areas.
Rigid areas provide excellent hard mount points for compo­nents, connectors and chassis while flex areas offer dynamic flexing, flex to fit, and component mounting poised to take advantage of these low mass and vibration resistant zones. This blending leads to creative solutions for your most demanding applications.
• Flex-Coils™: Custom wire-wound or etched coils may be integrated with any of our flex circuit or rigid-flex board types. Whether bonded to the surface or encapsulated in a high dielectric and abrasion resistant covering, these assemblies offer special capabilities to your coil designs.
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