FPC is mainly used in mobile phones, laptops, pdas, digital cameras, LCM and many other products.
1. Access Hole
Coverlay(perforation hole to be cut out first), usually used as a protective layer on the exterior of the soft board, to attach to the surface of the wire line of the soft board for the purpose of anti-welding film.
However, it is necessary to expose the hole wall or square pad required for welding, so as to facilitate the welding of parts.
"Access Hole" means that there is a Hole in the surface layer that allows the outside world to "approach" the welding spot on the plate below the surface layer of the surface layer.
Some multilayer plates also have such holes.
2, Acrylic Acrylic
Is the common name of polyacrylate resin, most of the soft plate use its film, as the next film.
3, Adhesive glue or adhesives
A substance, such as resin or paint, that allows two interfaces to bond.
4. Anchoring Spurs cohesion claws
On the middle plate or single panel, in order to make the hole ring pad have more powerful adhesion property on the plate surface, it can be added on the extra space outside the hole ring, and several additional finger claws to make the hole ring more consolidated, so as to reduce the possibility of floating away from the plate surface.
5. Bandability bending and bending ability
Is one of the characteristics of Dynamic Flex Board plates, such as the printed head Print Heads of computer disk drives, which are connected to the Board.
6. Bonding Layer binding Layer, next Layer
Usually refers to the film layer of a multilayer plate, or TAB tape, or sheet material of a soft plate, and the admixture layer between the copper skin and the polyimide (PI) substrate.
7. Coverlay/Cover Coat surface protection layer and protection layer
For the outer wire of the soft plate, the green paint used in the hard plate is not easy to be used for welding, because it may fall off when bending.
It is necessary to use a soft "compression force" layer to compress the surface of the board, which can be used as the anti-welding film and the protection of the outer circuit, as well as to enhance the resistance and durability of the soft board.
8. Dynamic Flex(FPC) Dynamic software board
A flexible circuit board, such as one in a disk drive read-write head, that requires continuous motion.
In addition, there is also a "Static FPC", which refers to a kind of soft board that no longer has any action after it is properly assembled.
9, Film Adhesive Film, then sticking membrane
Refers to the dry lamination of the next layer, may contain reinforcing fiber cloth of the film, or does not contain reinforcing material only the adhesive material of the thin layer, such as the following layer of FPC is.
10. Flexible Printed Circuit,FPC Flexible Printed Circuit board
Is a special circuit board, in the downstream assembly can do the appearance of the three-dimensional space changes, its substrate is flexible polyimide (PI) or polyester (PE).
This kind of soft plate can also be like a hard plate, and can be plated through hole or surface sticky pad for hole penetration or surface adhesion.
The surface can also be attached with a Cover Layer for the protection and anti-welding of soft tools, or printed with soft anti-welding green paint.
11. Flexural Failure deflection is damaged
Flexural Failure occurs when a material (sheet) is broken or damaged due to repeated bending and bending action.
12. Kapton polyimide soft material
This is the business name of dupont products, it is a kind of "polyimide" thin sheet insulation soft material, affixed with calendered copper foil or electroplated copper foil, can be made into the base material of soft plate (FPC).
13. Membrane Switch Membrane Switch
Using transparent polyester (Mylar) film as the carrier, SilverPastes (or silver paste) is printed with thick film line by screen printing method, and then combined with excavated spacer to combine with raised panel or PCB to become "touch" switch or keyboard.
This kind of small "key" device, often used in hand-held calculators, electronic dictionaries, and some household appliances remote control, are called "thin film switch".
14, Polyester control-insistent pang Polyester chip
PET chip, the most common product of dupont, MylarFilms, is a kind of material with good electrical resistance.
Its imaging in circuit board industry dry film on the surface of the transparent protective layer, and soft board (FPC) prevent welding Coverlay is PET film surface, and it can too as silver paste printing film lines (MembraneCircuit) of the substrate, the other can also be used as a cable in the electronics industry, transformer, insulation of wire coil or more IC of tubular in such use.
15. Polyimide (PI) Polyimide
It is a kind of fine resins that is polymerized by Bismaleimide and Aromaticdiamine jointly, it is French "Rhone-Poulenc" company place roll out powdery resinous commodity Kerimid 601 and say.
Dupont makes it into pieces, called Kapton.
This kind of PI plate has excellent heat resistance and electricity resistance. It is an important material for soft board (FPC) and automatic tape binding (TAB). It is also an important material for advanced military hardboard and super computer mainframe board.
16. Reel to Reel continuous operation
Some components of electronic parts can be produced in the process of retractable rollers (disks), such as TAB, IC's Lead Frame, some soft plates (FPC), etc., with the convenience of retractable tape, the on-line automatic operation can be completed to save the time and labor cost of single-piece operations.