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Various types of ionizers

Various types of ionizers  |  Correct understanding  |  Attention!  |  Key points for ionizer selection  |  Application examples of TRINC

There are many types of static eliminators in terms of principle and structure, and they have advantages and disadvantages, respectively.
 • You can’t feel the effect of static elimination.
 • Contrary to aim, the defect rate increases after introducing the ionizer.
 • The ionizer itself breaks easily.
 • Troublesome or impracticable maintenance.
 • Hazardous for semiconductor.
 • Risk of fire or electrical shock.
To avoid the disastrous situations described above, we would like to show a table summarizing the features of each ionizer type from technical point of views. We hope it will be provided to you as useful reference.

   No.1  No.2 No.3 No.4 No.5 No.6 No.7 No.8 No.9 No.10 No.11 No.12 No.13
   Ion engine
type
(TRINC
method)
DC type
(air-blow type)
 
  DC type
(no-blow type)
AC type Phased Array
type
(TRINC
method)
High
frequency
(TRINC
method)
Pulse DC
type
Pulse AC
type
Plasma DC
type
Plasma DC
pulse
type
Soft X-ray
type
Ultraviolet
type
Emission
type
Ion
Balance


About ±3V


About ±3V


About ±3V


About ±13V


About ±100V
(at center)


About ±15V

××

More than
±500V
(due to pulsation)

××

More than
±500V
(due to pulsation)


About ±20V

××

±600V
(at 5Hz)









effective
range
(with no air blow)


700mm

×

50mm


500mm

×

50mm


6,000×
3,000mm
Expandable
unlimitedly

××

0mm

×

50mm

×

50mm

×

can not use
without air blow


100mm




×

short at
proximate range

××

Very
short
No-blow
ionizing


Possible

××

Impossible


Possible


Almost
impossible


Possible

×

Impossible


Almost
Impossible


Almost
Impossible

×

Impossible


Possible at
short range


Possible


Possible


Possible
Ozon
Genaration


Little


Little


Little


Slightly much


Little

××

Much


Slightly much


Slightly much

××

Much

××

Much


No generation

××

Much


No generation
Static
induction
safety
(in proximity)


Safe


Safe


Safe

××

Very
dangerous


Safe
(at center)


Slightly dangerous


Safe


Safe


Safe


Safe


Safe


Safe


Safe
Labor
Safety


Safe


Safe


Safe


Safe


Safe


Safe


Safe


Safe


Safe


Safe

×

Possible X-ray exposure.
Shielding is required.

×

Possible ultraviolet emission exposure.
Shielding is required.

××

Possible X-ray exposure.
Shielding is required.
 Reliability1
(Use of
high voltage)
 

Hgh
±5kV
 

Hgh
±5kV
 

Hgh
±5kV
 
××

Prone to faliure
±20kV
p-p
 

Hgh
±5kV
 

Hgh
±8kV
p-p
 

Average
7kV
 
×

Prone to faliure
±14kV
(Internal)
±7kV
(External)
 

Slightly
High
±5.4kV
p-p
 
××

Unstable due to temperature fluctuation
±11kV
p-p
 
×

Low
15kV


Slightly High



Slightly High

 Reliability2
(leak-free structure)


High


×

Prone to failure

×

Prone to failure

×

Prone to failure


High

×

Prone to failure

×

Prone to failure

×

Prone to failure

×

Prone to failure

×

Prone to failure

×

Slightly high


Slightly high


Slightly high
 Cost for replacement of Ion generation head

Low


Slightly high


Slightly high

×

High


Low

×

High

×

High

×

High

××

Very
High

××

Very
High

×

High
Short X ray tube life
(approx.1000h)
Authorization needed to dispose Xray tube
(depending on toxicity of beryllium)

×

High
Short ultraviolet ray tube life
(approx.1000h)
Authorization needed to dispose ultraviolet ray tube
(depending on toxicity of beryllium)

××

Very High
Authorization needed to dispose apparatus
Air consumption power cost
(in Japan)


No need of air blow

××

$1,200-$3,000
a year for air blower
30W/h app. $60 a year for fan blower


No need of air blow

××

$1,200-3,000
a year


No need of
air blow

×

$1,500
a year

××

$1,200-3,000 a year for air blower

××

$1,200-3,000 a year for air blower


Fan only


No need of
air blow
(Principle)


No need of
air blow
(Principle)


No need of
air blow
(Principle)


No need of
air blow
(Principle)
Below, we will explain the advantages and disadvantages of each method and technical explanations step by step.

Please feel free to contact us if the explanations is insufficient for you.

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No.1  Ion Engine Type
1. Excellent Ion balance within ±3V.
2. It is safe for semiconductors because there is no pulsation of ion balance.
3.
Ion balance depends on position. Good ion balance is achieved when used in the proper position.
  Example) A bar type ionizer should be used at least 50mm away from the object.
4.
It is safe because there is no pulsation of ion balance even when it is brought close to about 100 mm, and it does not adversely affect electronic circuits and semiconductors.
5. No blow ionizing makes a wide ionizing possible as far as 700mm.
6. No blow ionizing promises no dust-related defect, as it does not use air blow to cause an electric leakage or raise dust.
7. Due to the structure of the discharge electrode, leakage is less likely to occur and maintenance is less frequent.


No.2  DC Type (with air blow)
1. Excellent Ion balance within ±3V.
2. It is safe for semiconductors because there is no pulsation of ion balance.
3. Ion balance depends on position. In some cases, ion balance varies point to point.
4. It is safe because there is no pulsation of ion balance even when it is brought close to about 100 mm, and it does not adversely affect electronic circuits and semiconductors.
5. No blow ionizing is not possible, because an ionizing area is only within 50mm from the electrode.
6. The use of fan or air blow causes an electric leakage, and raises dust making defect rate worse.


No.3  DC Type (w/o air blow)
1. Excellent Ion balance within ±3V.
2. It is safe for semiconductors because there is no pulsation of ion balance.
3. Ion balance depends on position. In some cases, ion balance varies point to point.
4. It is safe because there is no pulsation of ion balance even when it is brought close to about 100 mm, and it does not adversely affect electronic circuits and semiconductors.
5. No blow ionizing makes a wide ionizing possible as far as 500mm.
6. Because no blow ionizing does not use the fan or compressed air, there is no electric leakage, dust blowing on a product, and dust raising up.


No.4  AC Type
1. The attained ion balance is medium with around ±13V.
2. The ion balance pulsates at 50/60Hz, giving about ±7V even at 300mm away.
3. A pulsation of ion balance and electric field from electrode can destroy semiconductors if they approach within a range of 100mm.
4. No blow ionizing is not possible. The range ions can reach is about 50mm, and the recommended working distance to the object to be neutralized is within only 16mm.
5. The use of fan or air blow to fly ion away causes an electric leakage, and raises dust making defect rate worse.


No.5  Phase Array Type
1. Phased Array type is a new technology TRINC has invented.
2. It is possible to make the whole room free from static electricity by no blow ionizing.
3. A new antistatic method to be replaced from humidification.
4. A new antistatic method to be replaced from wrist strap, conductive shoes, and conductive floor.
5. Ultra-wide-area ionizing is possible. Effective area by one pair unit covers 18m2 (6x3m).
6. Effective area can be expandable by connecting using link cable.
7. There is no pulsation of ion balance. Ion balance in the middle area is around ±100V.
8. No-blow ionizing is possible.
9. It is very effective to decrease dust-related defect, because it does not use air blow that scatter dust.
10. Due to the structure of the discharge electrode, leakage is less likely to occur and maintenance is less frequent.


No.6  High Frequency Type
1. Good ion balance can be achieved.
2. Easy to downsize.
3. No blow ionizing is not possible, as ions are emitted with a help of compressed air or fan.
4. Ozone generated in a large amount may cause deterioration of the rubber material.


No.7  Pulse DC Type
1. The attained ion balance is so poor as to go up to even over ±500V.
2. The ion balance pulsates at a pulse frequency, even up to ±500V at 300mm away (at no air blow, 1-40Hz)
3. A pulsation of ion balance and electric field from electrode may destroy semiconductors if they approach within a range of 300mm.
4. No blow ionizing is not possible, because the effective ionizing area is as short as about 50mm.
5. The use of fan or compressed air to fly ions away can be a cause of electric leakage, or of increase of dust-related defects by blowing dust on products.


No.8  Pulse AC Type
1. The attained ion balance is so poor as to go up to even over ±500V.
2. The ion balance pulsates at a pulse frequency, even up to ±500V at 300mm away (at no air blow, 1-40Hz)
3. A pulsation of ion balance and electric field from electrode can destroy semiconductors when they approach within a range of 300mm.
4. No blow ionizing is not possible, because the effective ionizing area is as short as about 50mm.
5. The use of fan or compressed air to fly ions away can be a cause of electric leakage, or of increase of dust-related defects by blowing dust on products.


No.9  Plasma DC Type
1. The device uses a plate-shaped electrode instead of normal electrode type.
2. Simple cleaning of the plate-shaped electrode makes a maintenance relatively easier.
3. The plate-shaped electrode has a short service life.
4. The plate-shaped electrode costs very high (20 times the cost of conventional electrode).
5. Need an assist of air blow.
6. The emittance of ions is unstable depending on environmental humidity.
7. Ozone generation is so intense there is a possibility of the workers' health problem.
8. The generated Ozone may rust metal parts nearby.
9. The ozone generated may deteriorate rubber parts such as electric cords and sealing materials like the oil seal and packings, to make them torn to shreds.


No.10  Plasma DC Pulse Type
1. The device uses a plate-shaped electrode instead of normal electrode type.
2. Simple cleaning of the plate-shaped electrode makes a maintenance relatively easier.
3. The plate-shaped electrode has a short service life.
4. The plate-shaped electrode costs very high (20 times the cost of conventional electrode).
5. Ion balance is so poor that it may cause a hazardous situation (±600V at 5Hz)
6. Effective area of static elimination is so poor that it reach as short as 50 to 100mm.
7. The device may stop emitting ions or become unsteady depending on humidity changes.
8. Ozone generation is so intense that workers may upset. There is a possibility of their throat and lung being ruined.
9. The ozone generated may rust surrounding metal parts.
10. The ozone generated may deteriorate sealing materials, like the oil seal, and rubber parts, like the packing and electric cord, to make them torn to shreds.




Please feel free to contact us if the explanations is insufficient for you.

お問い合わせはこちらから


Phased Array Ionizing”, “No-Blow Ionizing”, “Ion Engine”, “Slight-Air Ionizing” are registered trademark (in Japan) of TRINC Corporation, a forerunner of this field.

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