Mulitlayer Printed Circuit Board

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45 Years of Mulitlayer Printed Circuit Board Supply | YI YI

Based in Taiwan, Yi Yi Enterprise Co., Ltd., since 1974, is a Mulitlayer Printed Circuit Board manufacturer. Every OEM or ODM finished product is fully assessed before delivery, and all of our materials and components are RoHS compliant.

Specialized in manufacturing membrane switch with super-abrasive finishing, as well as PCB board, graphic overlay, EL panel and circuit board, all materials and components are suitable for use in computers, instruments, electronics and electrical goods. FPC bending test, FPC auto drilling, FPC e-test, FPC SMT, CNC laser cutting, color scanner, SMT for membrane switch and printed circuit supply. Export 70% worldwide in US and Europe and the rest 30% in Taiwan.

YI YI has been offering customers high-quality membrane switch, EL panel & circuit board, both with advanced technology and 25 years of experience, YI YI ensures each customer's demands are met.


Mulitlayer Printed Circuit Board

Printed Circuit Board 0506

A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and / or between sheet layers of a non-conductive substrate. Components are generally soldered onto the PCB to both electrically connect and mechanically fasten them to it.

P.C.B, PCB , RF pcb, Rigid PCB, Flex PCB, PCB rigid

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    The first PCBs used through-hole technology, mounting electronic components by leads inserted through holes on one side of the board and soldered onto copper traces on the other side. Boards may be single-sided, with an unplated component side, or more compact double-sided boards, with components soldered on both sides. Horizontal installation of through-hole parts with two axial leads (such as resistors, capacitors, and diodes) is done by bending the leads 90 degrees in the same direction, inserting the part in the board (often bending leads located on the back of the board in opposite directions to improve the part's mechanical strength), soldering the leads, and trimming off the ends. Leads may be soldered either manually or by a wave soldering machine.


  • Flexible Printed Circuit (F.P.C.) - Double Sided FPC. Assembled with Components.
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    Our FPC products can be single sided, double sided,multilayer, and with SMT (surface-mount technology) to meet your particular needs. An FPC can be bent and folded, improving the efficiency of the configuration and being able to last for a long period of time, having a temperature tolerance of 180 - 200°C.