Industry News | 2018-10-18 08:46:25.0
"Lead-Free" Semiconductor Industry
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
Industry News | 2018-10-18 11:13:35.0
PCB Outline Layer And Keep-out Polygon Clearance
Technical Library | 2021-09-08 13:43:56.0
Manganese can be an optimal alloying addition in lead-free SAC (SnAgCu) solder alloys because of its low price and harmless nature. In this research, the mechanical properties of the novel SAC0307 (Sn/Ag0.3/Cu0.7) alloyed with 0.7 wt.% Mn (designated as SAC0307-Mn07) and those of the traditionally used SAC305 (Sn96.5/Ag3/Cu0.5) solder alloys were investigated by analyzing the shear force and Vickers hardness of reflowed solder balls. During the preparation of the reflowed solder balls, different cooling rates were used in the range from 2.7 K/s to 14.7 K/s.
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Technical Library | 2020-08-05 18:49:32.0
The evolution of internet-enabled mobile devices has driven innovation in the manufacturing and design of technology capable of high-frequency electronic signal transfer. Among the primary factors affecting the integrity of high-frequency signals is the surface finish applied on PCB copper pads – a need commonly met through the electroless nickel immersion gold process, ENIG. However, there are well-documented limitations of ENIG due to the presence of nickel, the properties of which result in an overall reduced performance in high-frequency data transfer rate for ENIG-applied electronics, compared to bare copper. An innovation over traditional ENIG is a nickel-less approach involving a special nano-engineered barrier designed to coat copper contacts, finished with an outermost gold layer. In this paper, assemblies involving this nickel-less novel surface finish have been subjected to extended thermal exposure, then intermetallics analyses, contact/sheet resistance comparison after every reflow cycle (up to 6 reflow cycles) to assess the prevention of copper atoms diffusion into gold layer, solder ball pull and shear tests to evaluate the aging and long-term reliability of solder joints, and insertion loss testing to gauge whether this surface finish can be used for high-frequency, high density interconnect (HDI) applications.
Industry News | 2023-08-07 10:18:06.0
Indium Corporation is set to deliver a technical presentation and exhibit its industry-leading products for power electronics assembly at PCIM Asia, August 29-31, in Shanghai, China.
Industry News | 2023-08-29 07:11:55.0
Indium Corporation® will showcase selections from its portfolio of proven products for thermal management and power electronics applications at SEMICON Taiwan, September 6‒8, in Taipei. In addition, Senior Area Technical Manager Jason Chou will deliver a presentation, The Lead-Free Materials Evolution in Power Die-Attach Soldering Applications, on September 7.
280°C). Unlike PTFE based microwave materials, no special through-hole treatments or handling procedures are required. RO4003C was designed with a dielectric constant of 3.38. The RO4350B has a dielectric constant of 3.48 and is UL94V-0 rated. RO445
