New Equipment | Solder Materials
Fluxes for use with Tin/Lead Solder. EQ-392 No-Clean is a homogeneous mixture of halogenfree, low solids organic flux designed for wave-soldering conventional and surface mount PCB assemblies. EQ-392 provides superior foaming characteristics with a
New Equipment | Solder Materials
Shenmao Technology offers a full line of Water Soluble Fluxes and Water Soluble Solder Paste for SMT and IC packaging applications. We provide halide-containing and halide-free fluxes for Tin/Lead as well as Lead-Free solder alloys. Our formulations,
New Equipment | Solder Materials
With a composition of 62% Tin / 36% Lead / 2% Silver, Kapp Electric Eutectic is a cost effective eutectic electrical/electronic solder where Lead is permissible. Silver increases the strength and vibration resistance of the joint in higher stress app
Industry News | 2019-04-01 19:56:55.0
SHENMAO America, Inc. provides a variety of solder paste products for SMT assembly including Tin Lead Solder Paste, Lead-Free Solder Paste, Water-Soluble Solder Paste, Package-on-Package Solder Paste, Low-Temperature Solder Paste, and Halogen-Free Solder Paste.
Industry News | 2012-01-20 15:08:03.0
AIM will debut its new NC259 Solder Paste chemistry in Booth #2804 at the upcoming IPC APEX Expo.
Welcome to this Defect of the Month video on via hole failures and how to see them, this series of videos were produced for and featured as part of the NPL/IPC video library and examples are taken from the NPL Defect Database. Over the last couple of
Technical Library | 2020-10-27 02:07:31.0
For companies that choose to take the Pb-free exemption under the European Union's RoHS Directive and continue to manufacture tin-lead (Sn-Pb) electronic products, there is a growing concern about the lack of Sn-Pb ball grid array (BGA) components. Many companies are compelled to use the Pb-free Sn-Ag-Cu (SAC) BGA components in a Sn-Pb process, for which the assembly process and solder joint reliability have not yet been fully characterized. A careful experimental investigation was undertaken to evaluate the reliability of solder joints of SAC BGA components formed using Sn-Pb solder paste. This evaluation specifically looked at the impact of package size, solder ball volume, printed circuit board (PCB) surface finish, time above liquidus and peak temperature on reliability. Four different BGA package sizes (ranging from 8 to 45 mm2) were selected with ball-to-ball pitch size ranging from 0.5mm to 1.27mm. Two different PCB finishes were used: electroless nickel immersion gold (ENIG) and organic solderability preservative (OSP) on copper. Four different profiles were developed with the maximum peak temperatures of 210oC and 215oC and time above liquidus ranging from 60 to 120 seconds using Sn-Pb paste. One profile was generated for a lead-free control. A total of 60 boards were assembled. Some of the boards were subjected to an as assembled analysis while others were subjected to an accelerated thermal cycling (ATC) test in the temperature range of -40oC to 125oC for a maximum of 3500 cycles in accordance with IPC 9701A standard. Weibull plots were created and failure analysis performed. Analysis of as-assembled solder joints revealed that for a time above liquidus of 120 seconds and below, the degree of mixing between the BGA SAC ball alloy and the Sn-Pb solder paste was less than 100 percent for packages with a ball pitch of 0.8mm or greater. Depending on package size, the peak reflow temperature was observed to have a significant impact on the solder joint microstructural homogeneity. The influence of reflow process parameters on solder joint reliability was clearly manifested in the Weibull plots. This paper provides a discussion of the impact of various profiles' characteristics on the extent of mixing between SAC and Sn-Pb solder alloys and the associated thermal cyclic fatigue performance.
New Equipment | Assembly Services
Saline Lectronics' DFM includes a detailed PCB layout review for fabrication and a thorough inspection of the overall manufacturability of your product, including flagging any potential assembly issues. The earlier our Engineering Team can review yo
Transition to Lead free will impact almost everyone in the electronics industry whether you consider yourself RoHS exempt or not. This is not a theoretical course. The objective of this course is to show you how you can resolve the business and techn
Industry News | 2010-09-03 03:48:15.0
Bob Willis will be presenting a hands on x-ray inspection workshop with FREE x-ray book and the chance to win x-ray inspection CDs and inspection posters.
