KlettWelding

The metallic Velcro fastener
Both surfaces have a NanoWiring structure
Shear strength up to 60 MPa
Resulting bond has electrical and thermal characteristics comparable to bulk metal
Stack
Stack
KLETTWELDING PROCESS

How We Manufacture KlettWelding

Structuring
Coating

Both surfaces have a NanoWiring structure

Positioning
Compressing

Room temperature
Pressure from 15 MPa
Time from 60 ms

KLETTWELDING OVERVIEW

KlettWelding Applications

Flip chip
Semiconductor production
Assembly joints - FPC/PCB, PCB/PCB
Plastic connections
Die Attach
Temperature sensitive devices

KlettWelding Video Tutorial

Watch video about KlettWelding presented by our CEO

KLETTWELDING+ PROCESS

KlettWelding+

Highest connection strength
Both surfaces have a NanoWiring structure

KlettWelding Applications

Die attach
Flip chip
High current busbars

How We Manufacture KlettWelding+

Structuring
Coating

Both surfaces have a NanoWiring structure

Positioning
Compressing

From 170°C
Pressure from 10 MPa
Time from 10 s

Comparison of NanoWired connection technologies

The following tables shows the comparison between KlettWelding and KlettWelding+ connection technologies

KlettWelding
KlettWelding+
NanoWiring
Both Sides
Both Sides
Process Temperature (°C)
20
170...240
Process Pressure (MPa)
From 15
From 10
Process Time (s)
0.06...60
120...300
Shear Strength (MPa)
6...20
20...65
Main Advantage
Very fast
Very fine pitch
Low temperature
Very fine pitch
Very high shear strength
Typical Application
Die Attach
Flip Chip
Temperature sensitive devices
Die Attach
Flip Chip
High current busbar

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