5

AL39UL/3006ALB

3M EMI Absorbers AB5100/AB6005/

AB7050 to reduce EMI noise within device.

Material AB5016RF/RFIC15 for

improved NFC & RFID performance.

3M Flux Field Directional Material

RFIC/EM16TF/EM80KM for

improved Wireless Power Efficiency.

Hard Coating Layer

ITO Layer

LCD Glass

Driver LC

AL39UL

to reduce EMI noise level on flex/connector.

B

z

Is Grounding Bias degrading your antenna or data flex signal to

noise (S/N) performance?

Problem

Solution

Electrical Bias Degrades

Performance

Poor Antenna or Data Flex

Signal/Noise ratio

Effectively

Ground Device

Optimized Signal/Noise Ratio

Grounding

not

effective

Antenna

Signal Data Flex

+2.0 V

+0.0 V Ground

Internal Device Bias

No Device Bias

Antenna

Signal Data Flex

+0.0 V

+0.0 V Ground

Assembly

optimized for

grounding

using

3M ECATT

Grounding

not

effective

Antenna

Signal Data Flex

+2.0 V

+0.0 V Ground

Internal Device Bias

No Device Bias

Antenna

Signal Data Flex

+0.0 V

+0.0 V Ground

Assembly

optimized for

grounding

using

3M ECATT

If device is not well grounded, the

“bias” voltage in the device acts as

a “transmitter” of a signal that the

signal line flex, antenna flex, etc. pick

up, leading to poor S/N performance

and higher error rates.

Device is well grounded so the “bias” voltage

in the device is “baseline” and no “RF signal”

is emitted. Optimized Antenna and data flex

S/N performance.

3M ECATT 9707, 9709S, 9720S and 9750