PCB News - FPC flexible electronic devices and professional terms 2

8. Dynamic Flex (FPC) dynamic flexible circuit board refers to the flexible circuit board that needs to be used for the main purpose of continuous fitness exercise, such as the flexible circuit board in the read-write capability of the disk drive. In addition, there is also a "Static FPC" (Static FPC), which refers to a flexible circuit board that has no posture after it is assembled.

9. Film Adhesive refers to the dry test sheet-like subsequent layer, which can contain a film of reinforced fiber cloth, or a thin layer of raw materials without reinforcement, such as the subsequent layer of FPC.

10. Flexible Printed Circuit, FPC flexible circuit board is this kind of unique circuit board, which can be transformed into a three-dimensional design in the middle and downstream assembly. Its substrate is flexible polyimide (PI) or polyimide. Lipids (PE). This type of flexible circuit board is also the same as a hard board, which can be made into plated buried vias or surface layer adhesive pads to carry out buried hole insertion or surface layer adhesive mounting. The surface can also be attached with a flexible cover layer for maintenance and solder protection, or printed with a flexible solder mask green paint.

11. Flexural Failure Tensile Strain Damage Because of the continuous bending and tensile strain posture, the raw material (board) is broken or destroyed, which is called Flexural Failure.

12. Kapton polyimide soft material is the trade name of the DuPont company in the United States. It is this kind of "polyimide" sheet-shaped insulating layer soft material, which is attached with rolled copper foil or electroplating process to remove copper. After foil, it can be made into flexible circuit board (FPC) board.

13. The Membrane Switch membrane switch uses a fully transparent polyester (Mylar) plastic film as a plasmid carrier, and uses a screen printing method to print silver paste (SilverPastes or silver paste) on the thick film route, and then is matched with a hollow gasket. Integrate with the raised control panel or PCB to become a "touch-type" power switch or computer keyboard. Such small and medium-sized "function key" components are commonly found in handheld computing methods, electronic dictionaries, and some household appliances controllers, etc., and are called "membrane switches".

14. Polyester Films Polyester flakes are commonly known as PET flakes. The most common one is MylarFilms, a product of DuPont in the United States, which is a raw material with excellent polarity resistance. The thickness of the fully transparent protective layer on the surface of the film that is dry for the development of the circuit board in the industrial production, and the coverlay for the solder mask on the surface of the flexible circuit board (FPC) is all PET plastic film, and it can also be used as a silver paste packaging and printing plastic film route. (MembraneCircuit) substrate, other main purposes in the industrial production of electronic devices can also be used as cables, transformers, cable sheaths of electromagnetic coils, or tube-shaped concealed devices of multiple ICs.

15. Polyimide (PI) is a high-quality epoxy resin made from the mutual polymer of Bismaleimide and Aromaticdiamine. It was originally a powdered epoxy resin product Kerimid released by the Dutch company "Rhone-Poulenc" 601 is known. DuPont of the United States made it into a sheet and called it Kapton. This kind of PI board has excellent temperature resistance and polarity resistance. It is the key raw material for flexible circuit board (FPC) and tape automatic fusion (TAB). They are both advanced military hard boards and high-performance computer motherboards. The key board talent, the mainland translation of this raw material is "polyamide". 16. Reel to Reel reel (disc) linkage type actually operates some electronic parts and components, and the reel (disc) telescopic solder can be used for production and manufacturing, such as TAB, IC's metal material tripod (Lead Frame), some Flexible circuit boards (FPC), etc., can be used for the convenience of reeling and retracting, and they can be automatically connected to the network to save the time of spare parts operation and the cost of manual services.

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