Search
FPC

Overview:

With the trend of lighter, thinner and smaller product development, FPC is becoming a well-developed alternative of the PCB in some product applications.


Ideal Jacobs is specialized in design support, quality and most importantly the cost control through years of support to elite customers. We further insert FPC into the membrane switches to help our customers enhance human-machine interfaces, to simply assembly with counterparts and to further improve the whole space of products especially for main PCB. 


Flexible Printed Circuit largely improves the user experience and helps customer with more possibilities in product design by its compact size and light weight. It stretches freely in a three-dimensional space. Rigid-Flex PCB, on the other hand, can be an excellent support body of electronic components while being flexible.


Types of FPC:











Membrane Switch
    Publish time 2019-12-03 09:19    
Membrane Switch


Membrane switches, which are also referred to as Membrane Keyboards or Membrane keypads, are made by printing colored and conductive inks onto Polyester or Polycarbonate films. The top layer creates the graphical design whilst the lower layers contain the printed circuitry layers.

A membrane switch operates when electrical contact is made by pressing the finger onto the switch contact area and broken when the finger is released. With the addition of metal domes within the structure, it is possible to add a specific tactile response for each key.

It is an electrical control for turning a circuit on and off.  Membrane switches are more cost-effective and take up less design space than mechanical switches or buttons because of their low profile. Membrane switches are easy to clean which makes them ideal for Medical or industrial controls.

Some common options :

Graphic Overlay:

·         Complete custom graphic design and development

·         Wide range of graphic layer material options such as: polyester, polycarbonate, silicone

·         LCD or LCD window options

Circuits:

·         Silver, carbon, dielectrics on polyester

·         FPC

·         Rigid PCBA

Shielding:

·         ESD, EMI or RFI shielding

Backlighting:

·         LED

·         Light guide film

Switching:

·         Tactile metal domes (wide range of sizes and actuation forces available)

·         Non-tactile platforms

·         Polydome

1)     Single Layer of FPC

It has a layer of chemically etched conductive pattern, and the conductive pattern layer on the surface of the flexible insulating substrate is a rolled copper foil.


2)     Double-sided FPC

The double-sided FPC has a conductive pattern made by etching on both sides of the insulating base film, which increases the wiring density per unit area.


3)     Multilayer FPC

Multi-layer FPC is to laminate 3 or more layers of single-sided or double-sided flexible circuits together, and form metallized holes by drilling and electroplating to form conductive paths between different layers.


4)    Rigid-Flex  PCB

it includes two or more conductive layers that comprise either flexible or rigid insulation material between each one. Both rigid and flexible areas that make them ideally suited for a wide range of applications.


Basic Specification:


No.

Item

Producing Capability

1

Layers

1-6
Including Rigid and Flexible Circuit)

2

Panel Size

Max:500X550mm

3

Drilling Diameter

Min. Diameter: 0.15mm(6mil)
Max. Diameter: 6.5mm(256mil)  

4

Base Material Copper Thickness

Min:1/3 Oz
Max:3 Oz

5

Insulating Layer Thickness

Min:0.0125mm(PI)(0.5mIL)
Max:0.05mm(PI)(2mil)

6

Electroplating Au Thickness

≥0.05um

7

Chemical Immersion Ni/Au Thickness

0.05um---0.1um

8

Etching Line Width & Space

S/S:2mil(0.05mm)
D/S:2mil(0.05mm)

9

Etching Tolerance

Width:±10%

10

Outline Tolerance(from side to side)

±0.05mm(:±2mil)

11

Parts Fixed Position Tolerance

±0. 2mm(8mil)