Vis-U-Etch™ 7

The Leader

In

Cupric Chloride Regeneration

For High Quality, Low Cost

And Environmental Safety

It’s time to set the record straight...Not all cupric chloride

regeneration systems are created equal!

The Vis-U-EtchTM 7 is the ONLY cupric chloride regeneration system that uses

light transmission to control the etchant.

Highest Quality From ANY Etcher

Light transmission controls etchant with virtually NO FREE ACID.

Eliminating free acid allows the MOST STABLE ETCHANT because there are no sudden releases of chlorine gas which cause variations in etch rate and etch factor.

Most Environmentally Friendly

NO OFFENSIVE HYDROCHLORIC ACID OR CHLORINE GAS ODORS from the etcher while operating. Employees love it!

ALL EQUIPMENT IN THE ETCH ROOM LASTS LONGER without the corrosive atmosphere present with other systems.

Highest Level Of Safety

Sophisticated INPUT CHEMICAL FAILURE ALARM SYSTEM warns of equipment malfunction and shuts down chemical input.

Low Operating Cost

Eliminating free acid provides the MOST EFFICIENT use of chemicals.

Up to 50% LESS WASTE generated through higher copper concentration in etchant.

Proven Technology

The Vis-U-EtchTM 7 has been installed in well OVER 200 LOCATIONS world-wide.

OVER 97% RETENTION RATE for all systems sold over the last 6 years.

Unsurpassed Etching Quality…

Because there is virtually no free acid– The finest lines are possible from any etcher due to

minimal acid undercut.– The most stable etchant is guaranteed yielding the most

consistent quality.– The entire etch room environment is less corrosive,

safer and more productive.

Quality...

High Acid vs. Zero Acid

1

H

2 3 4 5 6 7 8 9 101 E

4

7

2222.52323.52424.52525.52626.52727.52828.529

28.5-29

28-28.5

27.5-28

27-27.5

26.5-27

26-26.5

25.5-26

25-25.5

24.5-25

24-24.5

23.5-24

23-23.5

22.5-23

22-22.5

Figure 1 - Etching Variation @2N (In Microns)

1

H

2 3 4 5 6 7 8 9 10

1 E

4

7

27

29

31

33

35

37

35-37

33-35

31-33

29-31

27-29

Figure 2 - Etching Variation @0N (In Microns)

Quality...

Zero-Free Acid* Vis-U-Etch™ 7 vs. High Acid Normality/O.R.P.

Both panels start the same...

…Etching begins...

…BUT without free acid, straighter side-walls and reduced undercut are guaranteed. Only

the Vis-U-Etch™ 7 using light transmission can deliver this kind of performance!

*Actual Free Acid Normality =<0.05N

Quality...

System Requirements

Vis-U-Etch 7™ can be integrated into any DES line without any problem. However, to achieve the best results, the following requirements should be observed:

Circulation pump should be able to move the entire sump capacity of the whole etcher through the pump within 5 minutes.

Nozzles in the etch chambers should ideally be capable of a flow rate of 3.5 liters per minute with a pressure of 2.5 bar.

Installation...

Installation of the Vis-U-Etch 7™ is simple!

There are only 2 plumbing connections between the Vis-U-Etch 7™ and the etcher, a plumbing connection between the Vis-U-Etch 7™ and the Hydrochloric Acid and Oxidizer Tanks and a connection for the Spent Tank (when used)

Centurion Chemicals personnel will be on site to advise the end-user on the installation, and provide training

It normally takes less than a day to install the Vis-U-Etch 7™ . And most times, production is not even affected!

Installation...

Vis-U-Etch™ 7 Partial Customer ListAccudyneAccurate Circuit EngineeringACE Electronics Co.Action Computer ProductsAdvanced ElectronicsAKA (Slovenia)Aspocomp (Finland)Bartlett ManufacturingCal-FlexChemitallic (Denmark)Circuit Systems Inc.Cibo Print (Finland)CoGRA (Sweden)Crown CircuitsDaeDuck ElectronicsDebora ElectronicsDong-A Precision Co.DynacircuitsExpress Circuits (UK)Elco (Italy)Flextronics (UK)Graphic Electronic s (UK)Intec (Slovenia)Jian-Puu ElectronicsKCA ElectronicsL.E. Flex CircuitsLG ElectronicsLintekMarcel Electronics InternationalMektecM-Flex (China)M-Flex (Anaheim)

Motorola Multek (Minnesota)Multi CircuitNarae Electronic Co.New Star ElectronicsNippon Chemical Denshi, Inc.Omni CircuitsPCI / Gomtech ElectronicsPioneer CircuitsPossehl Besi ElectronicsPrime TechnologiesPrintca (Denmark)Printed Circuits UnlimitedPro-TechPyconRed BoardRock IndustriesRogers Corp.Saehan Electronics Co.SamsungSDC CircuitsSelect CircuitsSomacis (Italy)SungWoo ElectronicsTecnomaster (Italy)Technoflex ( UK)The Circuit TreeTotal Circuit ManufacturingTyco (California)UltraPrint (Finland)Wurth (Germany)Yufo Electronics