Stripping

Photoresist Stripper for Dry Film, Liquid, Soldermask, and More

Product Line for Photoresist Stripping

Photoresist stripper

CC8000

XLi

2300 Series


Common Photoresists Stripped

Dry film photoresists (aqueous-based)

Ink resist (aqueous-based)

Liquid photoresists (aqueous-based for high resolution )

Non-Aqueous Resist used in Wafer Manufacturing

Solder mask resist dry and liquid

Tin resist

Photoresist Stripping System


Common Uses for Chemcut Strippers

Stripping photoresist for PCBs and chemical milling

Stripping photoresist on glass surfaces

Stripping resist on wafers and semiconductor industry (SEMI)

Stripping metallic resist for PCBs (Tin Strip)

Stripping using organic solvents


Common Equipment Parameters

Speed range: 14 – 140 inches / minute

Max temperature: 160 °F (can make a 200 °F stripper)


Common Options to Add on to Photoresist Strippers

Drip Pan – easy to clean up drips and spills because the pan catches all chemistry around the wet processing equipment.

Drying

Chiller Cooling System

Inline Filtration – results in fewer clogged nozzles and fewer particles in solution

Panel Count Controller – or Bath Control could be used instead. Automated chemistry management will improve product quality and reduce labor.

Ventilation Demister – aids in capturing vapors and condensing the vapors back to a liquid form, returning it to the module or waste treatment.

The options do not stop there. Chemcut wet processing machines are modular. That allows you to configure your machine in any order you want.

Please proceed to our products to find all the different conveyor widths you can pick from.


Photoresist Stripping Process

The photoresist stripping process follows the wet etching step and as a whole is less technical than the other wet processes. Basically, the resist needs to be in the chemistry long enough to strip. We build strippers for both positive photoresist and negative photoresist.

There are a couple of important factors to take into account if you want an efficient stripping line.

First, you need to work with your chemistry supplier and photoresist film supplier to make sure your resist and chemistry are compatible with each other. If they are not compatible you will see your resist stripping off in sheets, as goo, as large pieces, or very fine pieces.

None of these are good!

You want your resist to strip in small chips. The reason you want small chips is that our strippers are designed to filter out small chips.

If you are getting any other size or goo, this means your resist and chemistry are a mismatch, our stripper will have a hard time filtering out particles. This will result in plugged nozzles.

Once you have a perfect match of chemistry and resist, we can move onto how our stripper design will help your process.

Our strippers are designed with world-class filtering which will increase your lines efficiency, speed, and cleanliness.

Stripping resist creates a lot of small particles. These particles have the potential to cripple your throughput if not filtered correctly. We design our stripper to have a clean sump and a dirty sump. Separating as many particles from the pumps feeding the spray tubes as possible and returning stripper solution to the clean sump after filtration.

The dirty sump will then be pumped through our on-board resist filter. The filtered resist will then be pumped to our bulk separator.

This design has helped many chemical etching plants optimize their throughput by decreasing downtime and maintenance time on their stripper module.

Chemcut also offers a range of high-pressure options for the sometimes-difficult task of removing photoresist after a plating step. Pump and spray pressures of 100 psi up to 500 psi is possible. A high-pressure station can be easily added to our modular systems if needed, XLi or CC8000.


Why Choose Chemcut to Build Your Photoresist Stripper?

Chemcut’s process engineers have over 100 years of combined experience in the wet processing industry.

Whether you are stripping for PCBs, chemical milling, glass, wafers, or solar panels. Chemcut will find a way to make your stripping process a flying success. We are willing to customize our strippers to your every need.

Contact us today so we can discuss your resist stripping project to determine the best way to optimize your future stripping line.

Then we will have you send us samples so we can prove the capability of our machines. For the testing phase, we will need you to supply us with a panel that is ready to be stripped.

What if you are just starting a photo etching shop and cannot do this yourself?

No problem.

Chemcut has the ability to clean, laminate, expose, develop, etch, and strip, in-house! All you will need to supply is the artwork, laminate, and the metal/ceramic that needs to be stripped.

Chemcut can test unusual chemistries (organic solvents for example) for material compatibility prior to system build to verify the process will work, and that materials selected for construction are durable and robust.

Chemcut will prove our stripper can attain your goals and we will help you optimize all your wet processing steps.

In the end, the optimization really comes down to you testing your new stripping equipment and finding what best works for you, but we will be here the whole time to help you through every step.

Ultimately the main reasons our customers love working with us is:

We are here to serve you. Our pre and post-sales support is second to none and prides itself on our customer’s success.

Etching Performance. Our etchers provide companies with the most uniform and accurate etched surface on the market today.

Durability. Our wet processing machines are built to last using USA sourced material that is the best in the world. We have hundreds if not thousands of etchers, developers, and strippers that are well over 30 years old still providing high quality etched components.

Vertically Integrated. We make over 90% of our parts so we do not rely on anyone else to make parts for us. This gives us complete control over quality and the ability to make parts in order to support installed systems that are over 30 years old. We never have to worry about a supplier discontinuing a part and if a part is not in stock, we can start building it immediately.

Completely customized wet processing machines. You can buy a standard etcher, or you can customize every single detail.

Research and Developing Lab Testing. Our research and development lab will prove to you that our machines can etch the components you want and can help you optimize your etching process.

Scale Up. Consultation with Chemcut design and process engineers will help you scale up from prototype design to full-scale continuous production.

MADE IN THE USA

 

Specifically, for building Strippers, customers love that we have the ability to test the chemistry for compatibility. We can also do spraying tests. Which will result in more accurate photoresist stripping time estimates.

 

etching pcb and chemical milling