Electronics and wafer industry ( Anti-static vacuum pad or ESD vacuum pad)

ESD vacuum pad Introduction

Electrostatic causes : friction, peel, induction……and etc.

The substance is charged by loss or gain of electrons.

Three leves of ESD

ESD discriminate three levels as below :

1.ANTI-STATIC :

SURFACE ELECTRIC RESISTANCE 109~1012Ω

2.Electrostatic dissipative :

SURFACE ELECTRIC RESISTANCE 106 ~ 109Ω

3.Conductive :

SURFACE ELECTRIC RESISTANCE 104~106Ω

DIN IEC 1340-4-1 request antistatic material level is 106~109Ω

Why do I need anti-static dissipative grade material?

People walking or friction, is the main source of static electricity. Static electricity build-up can cause electric shock or damage to the precision equipment.

EX : Most moden offices use the central air-conditioning, which use all day will make the air more dry and will cause static electricity easy to produce, gathered and not easy to dissipate.

Why do I need conductive grade material?

In the high-precision space, such as wafer production line, operation room, ammunition depot……and etc. The static electricity can not be gathered. It must be discharge via static-conducting agent in order to avoid danger

EX : Doctors need to monitor a variety of index on precision instruments. If the computer and the instrument are interfered due to static and make the reading is not correct. It may lead to a doctor misjudgment and results in irreparable error.

Conclusion :

Electro Static dissipative : Suitable for offices, schools, hospitals, public indoor places, factory offices, processing factory.

Conductive : Suitable for surgery room, ammunition depots, IC equipment, wafer production lines, and other precision plant.

CNL provides two level anti-static materials :

1.Conductive :

SURFACE ELECTRIC RESISTANCE 104~106Ω

2.Electro Static dissipative :

SURFACE ELECTRIC RESISTANCE106~109Ω

Two kinds of material can be selected :

1.Silicon

2.NBR

CNL will use a professional surface resistance measuring instruments to test materials and finished products during the manufacture and QC to sure to meet the above two levels. 

These antistatic materials are widely used in vacuum suction cups in order to prevent the production line free from the static electricity and cause product damage.