Industry Directory | Manufacturer
The largest tin/lead secondary smelter in the western hemisphere, with a focus on recycling industrial metal waste streams. Areas of expertise include electronics dross, solder paste, solder wire, solder bar.
New Equipment | Solder Materials
8 hours), and abandon time (>4 hours) Printing: Suitable for high speed printing up to 150 mm/s Reflow: Solderable on challenging surface finishes (CuNiZn and Copper OSP) Colorless residues for easy post-reflow inspection Careful contr
New Equipment | Solder Materials
Kapp Copper-Bond Flux™ has been designed for high temperature soldering of all common metals except Aluminum. Kapp Copper-Bond Flux™ is an activated liquid flux containing a mixture of inorganic salts in water, with approximately 50% active ingredien
Technical Library | 2022-01-05 23:14:20.0
The process of copper recovery from waste printed circuit board has generated large amounts of non-metallic fraction (NMF) residue. In this research, the residue was recycled as a substitute for fine aggregates at 0%, 5%, 10%, 15%, and 20% to produce interlocking concrete blocks. Properties of the interlocking concrete blocks produced in this study, such as density, water absorption, compressive strength, were firstly examined and the selected mixes were further evaluated for the heavy metal leachability.
New Equipment | Solder Materials
Tip tinner to aid in cleaning and re-tinning solder iron tips de-wetted by use which can’t be repaired with sponge pads and cored solder wire. Use of TTC100C LEAD FREE Tip Tinner offers the following advantages: Lead Free SN100C tin/copper/nic
Events Calendar | Wed Mar 18 00:00:00 EDT 2020 - Wed Mar 18 00:00:00 EDT 2020 | College Park, Maryland USA
CALCE Reliability Science Symposium - Spring 2020
Industry News | 2023-06-13 18:20:29.0
ZESTRON is pleased to announce an upcoming webinar on "Enhancing Performance of Copper Pillar Interconnects through Defluxing". The webinar will take place on June 15, 2023, at 2:00 PM EST and will be presented by Ravi Parthasarathy, Senior Application Engineer at ZESTRON Americas.
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
New Equipment | Solder Materials
Bars / Solid Wires Proposal Pro Contra Wave and selective soldering SN100C® Favourable price
Industry News | 2018-09-26 11:50:32.0
SHENMAO America, Inc. is pleased to introduce its SMF-UL51, which is a no-clean, halogen-free, ultra-low-residue spray flux. As the world’s major solder materials provider, SHENMAO produces SMT solder paste, laser soldering paste, cored solder wire, wave solder bar, semiconductor packaging solder spheres, wafer bumping solder paste, flux and solar PV ribbon.
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