Atotech Launches Pre Dip for Fine-Line Applications


Reading time ( words)

Neoganth W Pre Dip is Atotech’s new process for the desmear and metallization (PTH) process step for fine line HDI and package substrate applications. The new pre dip assures higher yield rates due to a significantly reduced occurrence of short circuits.

The trend for ever smaller lines and spaces in advanced HDI boards for mobile applications continues. Lines and spaces (L/S) will be reduced to 25/25 µm by 2019. The trend was made possible by manufacturing technologies such as modified semi-additive processes (mSAP) and advanced modified semi-additive processes (amSAP). With this minimization comes the need for new PORs (process of record), which offer significant technical advantages over existing ones. 

Neoganth W Pre Dip

Atotech’s newly developed Neoganth W Pre Dip is a low foaming activator pre dip designed for horizontal transportation mode such as in Atotech’s Uniplate LB line. The process leads to a significant reduction in particle formation thereby enabling higher yield rates in fine line production. A key feature to achieve this is its alkaline pH.

Customer data has shown that using Neoganth W Pre Dip reduces the occurrence of short circuits in the process by up to 50% compared to competitive products. At the same time, the process provides excellent coverage performance while significantly reducing foaming behavior.

Coverage performance comparison on 4 different base materials (Isola IS410,Panasonic R1755C, Nanya NP140,Shengyi S1141) after new make-up, throughput and with maximum drag-in of Neoganth® W Pre Dip into the subsequent activator bath

Neoganth W Pre Dip is best used in front of an ionic PTH activator, such as Neoganth U Activator or Neoganth X Activator. It ensures proper wetting, pre-conditions the glass fibers and securely removes remaining copper oxides after etch cleaning.

The process has already been rolled-out successfully in Korea, Taiwan and China. Its key benefits allow it to exceed previous PTH POR process steps thereby assuring customers receive outstanding performance results.

About Atotech

Atotech is one of the world’s leading manufacturers of specialty chemicals and equipment for the printed circuit board, IC-substrate and semiconductor industries, as well as for the decorative and functional surface finishing industries. Atotech has annual sales of USD1.1 billion. The company is fully committed to sustainability – we develop technologies to minimize waste and to reduce environmental impact. Atotech has its headquarters in Berlin, Germany, and employs more than 4,000 people in over 40 countries. For more information, click here.                          

Share


Suggested Items

Ventec Keeps 'Shaking Things Up' with tec-speed 20.0

09/10/2018 | Barry Matties, I-Connect007
At the EIPC summer conference, I-Connect007 Publisher Barry Matties caught up with Ventec Europe & Americas COO Mark Goodwin, who provided an update on Ventec’s new products, the current state of the company, and how Ventec is shaking things up in the materials marketplace.

PCBs Are Moisture-Sensitive Devices

09/07/2018 | Richard Heimsch, SUPER DRY
Research by SMT & Hybrid GmbH (now SMT Elektronik) was conducted just prior to the original publication of IPC-1601, which now provides detailed guidelines for the packaging and storage of PCBs, both from the PCB manufacturer and at the assembler’s manufacturing floor.

PCB Design, Fabrication and Use from the Mil-Aero End-User Perspective

08/28/2018 | Pete Starkey, I-Connect007
The procedures described for Rolls Royce were directly comparable with those described for MBDA, and the presenters were unanimous in re-emphasising the importance of working closely with their chosen PCB fabricators at all levels and all stages of design, qualification and production of their circuit boards.



Copyright © 2018 I-Connect007. All rights reserved.