| Dome Array |
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Main Products: Polydomes (1)
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| Description:
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Membrane package consisting of two single layer
membranes, a spacer and an embossed polydome
membrane (upper membrane). Instead of the lower
membrane also a PCB can be used.
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Structure:
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A print into the polydome can replace the upper
single layer membrane
(Cost reduction).
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Main Products: Polydomes (2)
Data:
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Non-linear Force-Travel
Characteristic providing
a precise tactile feedback
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Dome-Ø:
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4 to 12 mm
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Force:
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≦12 N (depending on diameter)
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Travel:
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< 1.5 mm (depending on diameter)
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| Lifetime:
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Standard up to 1 million cycles
Force reduction
over lifetime ~25 %
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| Bounce time:
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< 5 ms
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Main Products: Polydomes (3) - General Assembly |
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- Options
• one or both side adhesive Spacer
• printed Spacer
• welded Spacer membrane
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- Lower conductive layer
• printed polyester foil
• PI - flex
• PCB
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| <1.5 mm(depending on diameter)
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Main Products: Polydomes (4)
-Direkt and Indirect actuated Membrane Switch
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Direct actuated membrane switch with tactile feedback
Indirect actuated membrane switch with tactile feetback
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Main Products: Polydomes (5) - Integration of LEDs
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| Metal dome Arrays
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Main Products: Single Membrane Arrays (1) |
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Description:
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Screen printed polyester membrane (PET)
Single- or double-
sided (Through-hole) printed
Number of prints: 12 max
(standard: 4 to 6)
Print thickness: about 10 microns
Polyester
thickness: 75 to 190 microns
Inks: connection (Ag),
passivation (C),
protection (acryl), isolation (acryl)
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| Structure:
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single membrane arrays are often part of
membrane
switches, polydome switches
or the basic substrate of a
smart membrane
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| Data:
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Pitch:
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≧0.5 mm
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Print registration:
(continued)
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+/- 0.2 mm (print to print)
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Main Products: Single Membrane Arrays (2) |
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Data:
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Conductive inks:
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25 - 50 mOhms/sq/10 µm |
| Trace resistance: |
Ink resistance x length / width / thickness
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| Pitch:
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0.5 mm
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Print registration:
(continued)
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+/-0.2 mm(print to print)
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Switching Current:
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200 mA max
Switching |
| Power: |
≦1 W
Isolation |
| resistance: |
up to 1 GOhm
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| Operating |
-25 to+85
℃ Storage |
| temperatur: |
temperatur: -40 to+100
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| Humidity:
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5% to 93% RH
(non-condensing)
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| Thermal Shock: |
-40 to +80℃(500 Cycles) |
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Flexion behaviour: |
180°around a 2 mm diameter
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Main Products: Multiple Membrane Arrays
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Description:
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Membrane package consisting of two or more
single membrane arrays (e.g. lower and upper
switch membrane) separated by a spacer
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| Structure:
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Data:
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No tactile effect: |
Linear Force-Travel-Characteristic
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Travel: |
≦0,7 mm, |
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Force: |
≦5 N
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Lifetime: |
≧1,000,000 cycles
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| Dome Array Spec. Ⅰ
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Name
tems |
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METAL DOME ARRAY |
DOME DIAMETER
(mm) |
5 , 6 , 7 , 8 ,
9 , 10 , 12 .... |
3.5 , 4 , 5 , 6 ,
8 , 10 , 12.... |
FORCE |
2....12N ± 20% |
1.5...5N ± 15% |
TRAVEL |
0.4....1.0 mm ± 25% |
0.15....0.65 mm ± 20% |
OPERATION TEMP. |
- 40 ℃....+ 85 ℃ |
- 40 ℃....+ 105 ℃ |
Dome Location
Compared to
Positioning Holes |
+/- 0.25mm |
+/- 0.25mm |
OPTIONS |
a. Adhesive on front or back.
b. Printed spacer or welded spacer.
c. White dome layer for better illumination.
d. Printed ESD/EMI silver grid. |
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Dome Array Spec. Ⅱ
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