SMT, PCB Electronics Industry News

CupraEtch™ DT25 - Atotech’s New Photoresist Adhesion Process

Jan 16, 2014

The increased challenge of miniaturization with increased functionality within the PCB industry leads to the constant need for new technologies for high volume manufacturing. As line and space features decrease, requirements on the photoresist as well as its pre-treatment steps increase.

CupraEtch™ DT25, Atotech’s new photoresist adhesion process, is a very suitable pre-treatment for dry film and liquid photoresist. It features tracer elements for an optimized process control and is ideal for high volume manufacturing.

CupraEtch™ DT25 is a simple two- to three-step, low temperature micro-etching process that creates a high level of uniform roughness. It is ideally suited to horizontal processing,” explains Dr. Rami Haidar, Global Product Manager Surface Treatment Technology (STT), at Atotech Deutschland GmbH in Berlin, Germany. “As a cost - efficient chemistry with considerable yield improvements it provides our customers with significant economic benefits on a daily basis.”

Besides a high copper loading capacity of up to 40 g/L, it only requires a minimal etch depth of 0.5 to 1.0 microns. The robust process further features a wide chloride operating window and tolerance (up to 20 ppm), making it an easy to control and stable process.
Extensive alpha and beta site tests have shown that CupraEtch™ DT25 produces excellent roughness and cosmetic results on different copper types. This leads to improved adhesion of all Dryfilm types and ideal AOI compatibility.

Direct customer experience with CupraEtch™ DT25 has shown:

  • A simplified waste treatment, which leads to improved yields for lower production costs
  • Significant yield improvements of 7% - 10%
  • Ideal suitability for standard line and space requirements
  • Ideal for conveyorized applications for thin material handling
  • Suitable for both tenting and pattern plating applications

CupraEtch™ DT25 is available worldwide and is already being used by customers around the world.

With annual sales of €885 million, Atotech is one of the world's leading manufacturers of processes and equipment for the printed circuit board, IC-substrate and semiconductor industries (Electronics) as well as the decorative and functional surface finishing industries (General Metal Finishing). Committed to sustainability, Atotech develops technologies that minimize waste and reduce environmental impact. Atotech, a division of the Total Group, is headquartered in Berlin, Germany and employs about 4,000 people in over 40 countries.

Aug 17, 2017 -

Cirtronics Installs High-Performance X-ray Inspection Solution

Aug 17, 2017 -

Essemtec to Show New All-in-One Jetting / Placement System at SMTAI

Aug 17, 2017 -

Engineered Material Systems to Introduce New Conductive Adhesives for Stringing and Shingling Next-Generation Solar Modules at EU PVSEC

Aug 17, 2017 -

What is SMT and where to by SMT spare parts

Aug 16, 2017 -

ViTrox and KIC Establish Cooperation and Connectivity

Aug 16, 2017 -

Inovaxe Is Making Storage SMARTER – Visit Booth #915 at SMTAI

Aug 16, 2017 -

COT Increases Manufacturing Capability with New DMG Horizontal Milling Centers

Aug 16, 2017 -

High-Performance 3D AOI from Viscom at SMTAI

Aug 16, 2017 -

Innovative Bench-top Soldering Equipment from Metcal at SMTAI

Aug 16, 2017 -

ADLINK Introduces MVP-6010/6020 Series of Expandable Fanless Embedded Computers with Four Expansion Slots

See electronics manufacturing industry news »

CupraEtch™ DT25 - Atotech’s New Photoresist Adhesion Process news release has been viewed 979 times

High Precision SMT Fluid Dispensers