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Guoxing Technology Plasma Treatment Test Methods and Standards
Author:Original Click :1270 Date: 2021-04-16

Plasma treatment test methods and standards:


Serial number

method

description

standard

Suggest

1

Dyne pen

Dyne: [English dyne] The unit of force, the unit of the surface energy of an object. The dyne value is small, the surface energy of the object is low, the dyne value is large, the surface energy of the object is large, the greater the surface energy, the better the adsorption, and the adhesion And the better the coating effect; The dyne pen can directly test the surface energy of the object, which is convenient and reliable to use

Use a dyne pen to test the surface of the workpiece before treatment, generally below 40 dyne, which is not conducive to bonding and coating; after treatment, the dyne value of the surface of the workpiece can reach more than 55-60 (different materials have different treatment effects), which is more beneficial Bonding and coating;

Simple and reliable operation, recommended

2

Water drop test

The dyne value of water is 72. Generally, if the hydrophilicity of the treated workpiece is good, it means that the surface energy is higher, which has exceeded 70 dyne. Bonding and coating are ideal

Use a thinner needle tube to titrate, and the water droplets can be evenly dispersed after reaching the surface of the workpiece without accumulating together;

The water drop test is simple and convenient, but the surface energy of some materials cannot reach 70 dyne after treatment, which is not obvious with this method;

3

SEM scan

SEM: short for electronic scanning electron microscope, which can magnify the surface of an object several thousand times and take a microscopic picture like a molecular structure

If you are doing plasma etching or cleaning, you can clearly see the structural changes on the surface

Equipment is more expensive and less company owns

4

Tape tension test

Use tape to attach to the surface of the workpiece, and use a tensile tester to stretch the adhered tape. The tensile tester will display the maximum tensile value. This can clearly test the data of the adhesion effect of the workpiece before and after plasma treatment, and judge from the data More ideal plasma treatment parameters

According to different products, the parameter with the largest change in the tensile value before and after treatment is the best

Test use, not applicable for mass production

5

Infrared scan

Using infrared testing equipment, it can test the combination of polar groups and element composition on the surface of the workpiece before and after plasma treatment.

View infrared data, detect changes in element composition and polar groups before and after processing, different materials have different standards

The equipment is more expensive and less company owns

6

Weighing method

Plasma etching uniformity test method, place the same workpiece in different positions in the cavity, generally use 10*10cm epoxy sheet as the base material, bake and dry before plasma treatment test, weigh, record, plasma treatment is completed, take it out Weighing, recording, and collating data, the uniformity of plasma can be reflected from the weight difference before and after processing (ie the amount of etching)

Uniformity greater than 80% is qualified

Large plasma etching machine is used, small machine or surface cleaning and activation model is not applicable


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