Industry Directory | Manufacturer
Toppan is a manufacturer of bare PWBs. Technology includes 2-32 layers, standard technology and advanced technology. Delivery in 3-20 days. Excellent six sigma based quality system.
Industry Directory | Manufacturer
Custom Electronic Design and Manufacturing Services including design/build, electronic design, layout, pc boards, assembly, box-build, and test. RF/Wireless solutions.
Technical Library | 2020-09-02 22:02:13.0
With the adoption of Wafer Level Packages (WLP) in the latest generation mobile handsets, the Printed Circuit Board (PCB) industry has also seen the initial steps of High Density Interconnect (HDI) products migrating away from the current subtractive processes towards a more technically adept technique, based on an advanced modified Semi Additive Process (amSAP). This pattern plate process enables line and space features in the region of 20um to be produced, in combination with fully filled, laser formed microvias. However, in order to achieve these process demands, a step change in the performance of the chemical processes used for metallization of the microvia is essential. In the electroless Copper process, the critical activator step often risks cross contamination by the preceding chemistries. Such events can lead to uncontrolled buildup of Palladium rich residues on the panel surface, which can subsequently inhibit etching and lead to short circuits between the final traces. In addition, with more demands being placed on the microvia, the need for a high uniformity Copper layer has become paramount, unfortunately, as microvia shape is often far from ideal, the deposition or "throw" characteristics of the Copper bath itself are also of critical importance. This "high throwing power" is influential elsewhere in the amSAP technique, as it leads to a thinner surface Copper layer, which aids the etching process and enables the ultra-fine features being demanded by today's high end PCB applications. This paper discusses the performance of an electroless Copper plating process that has been developed to satisfy the needs of challenging amSAP applications. Through the use of a radical predip chemistry, the formation, build up and deposition of uncontrolled Pd residues arising from activator contamination has been virtually eradicated. With the adoption of a high throwing power Copper bath, sub 30um features are enabled and microvia coverage is shown to be greatly improved, even in complex via shapes which would otherwise suffer from uneven coverage and risk premature failure in service. Through a mixture of development and production data, this paper aims to highlight the benefits and robust performance of the new electroless Copper process for amSAP applications
Industry News | 2021-02-25 13:41:10.0
MacDermid Alpha Electronics Solutions, leaders in innovative electronic interconnect technologies, will feature their recent product releases and latest innovations, at the IPC APEX Virtual Conference and Expo, March 8-12, 2021.
Compact Plasma Etcher The PE-100 is a complete system with vacuum pump designed to be reliable yet inexpensive enough to allow startup companies, medical labs and R&D facilities the opportunity to experience Plasma Etch technology. The all aluminum
Industry Directory | Consultant / Service Provider / Manufacturer
Established in 1990 and accumulated years of experiences in providing laser-plotting service to sample and mass production, Plotech has become a high-end PCB leader with all High Mix & High Volume facilities in South East Asia.
Industry Directory | Manufacturer
Quick Turn Prototype & High Volume Production PCB. Microvia, Flex, Rigid Flex.
Industry Directory | Manufacturer / Other
Westwind Air Bearings is a world leader in air bearing spindle systems. Westwind technology has been successfully applied in: PCB drilling, semiconductor wafer grinding & dicing, ion implantation, coatings, disk writing, scanning & industrial.
Printed Circuit Board Design Service Bureau for high quality, low cost source for Printed Circuit Design, Training, Fabrication, and Project Management. While every job is unique, CA Design employs a battle-proven process for ensuring that your desi
Printed Circuit Board Design Service Bureau for high quality, low cost source for Printed Circuit Design, Training, Fabrication, and Project Management. While every job is unique, CA Design employs a battle-proven process for ensuring that your desi