Waterproof Dustproof Oilproof Membrane Switch Overlay Light Weight
And Small Size
Membrane switch, also known as light-touch keyboard, adopts an
integral sealing structure composed of flat multi-layers. The new
type of electronic components is a fundamental change in the
appearance and structure of electronic products. It can replace the
keys of conventional discrete components and perform the tasks of
the operating system more reliably.
PET Membrane Switch Overlay Description:
The main technical indicators
1. Max size: single sided, double sided:600mm * 500mm Multi-layer:
400mm * 600mm
2. Processing thickness:0.2mm -4.0mm
3 Copper foil substrate thickness: 18μ(1/ 2OZ ),35μ( 1OZ ),70μ( 2OZ
)
4 Common material: FR-4 , CEM-3 , CEM-1,
Polytetrachloroethylene,FR-1(94V0,94HB)
5. Light copper,Nickel-plated,Gilded,HAL；Immersion
Gold,Antioxidant,HASL,Immersion Tin,etc.
Overlay Material | PET, PC |
Artwork Format | CorelDraw, Adobe Illustrator AI, AutoCAD, CDR |
Color | Pantone and RALcolor matching system |
Button | Embossed/Flat/Metal/Silicone/Rubber |
Keys Options | Tactile: metal domes or poly domes |
Non-tactile: flat button, printed silver spot on the circuit |
Connector Tail | Zero insertion force(ZIF) with 0.5MM ,1.0MM,1.25MM pitch |
Female connector with 2.54MM pitch |
Circuitry option | Silver printed conductive inks, FPC, PCB |
Printing | Screen printing, Semi-Auto matic printing, Automatic Printing |
Window | Clear or transparent, translucent, red/black/white/green etc
transparent window |
Surface | Glossy surface or matte surface |
Rear Adhesive | 3M467,3M468, 3M9080, 3M9495, 3M7959,3M9471, 3M300VHB, etc... |
Certificate | ISO9001,RoHS,CE,SGS |
Process Capability
1. Drilling:The minimum diameter 0.1mm
2. Hole metallization:Minimum aperture 0.2mm,Thickness / aperture
ratio 4:1
3. Wire width: Minimum:Gold plate 0.10mm, Tin plate0.1mm
4. Wire spacing: Minimum:Gold plate 0.10mm, Tin plate0.1mm
5. Gold plate: nickel layer thickness:≧2.5μ,Gold layer thickness:
0.05-0.1μm or according to customer requirements
6. HASL: tin layer thickness:≧2.5-5μ
7. Paneling: Line-to-edge minimum distance: 0.15mm hole to edge
minimum distance: 0.15mm smallest form tolerance: ± 0.1mm
8. Socket chamfer: Angle: 30 degrees, 45 degrees, 60 degrees Depth:
1-3mm
9. V Cut: Angle: 30 degrees, 35 degrees, 45 degrees Depth:
thickness 2/3 Minimum size: 80mm * 80mm
PET Membrane Switch Overlay Applications:
1. The mobile phone
Focuses on the flexible circuit board light weight and thin
thickness. Can effectively save the volume of products, easy
connection of the battery, microphone, and buttons and into one.
2. Computer and LCD screen
Use the one line configuration of flexible circuit boards, and thin
thickness. The digital signal into the picture, through the LCD
screen
3. CD player
Focuses on three dimensional assembly characteristics of flexible
circuit boards and thin thickness. The huge CD to carry around
