New Equipment | Rework & Repair Equipment
The BEST EZReball™ process is the answer to your reballing problems. This BGA reballing process simplifies the process while eliminating the clean up of all those paper remnants, allowing for better yields and faster reballing times. The simplicity o
NanoFoil® reactive multi-layer foil is a controllable and affordable bonding material, proven to lower manufacturing costs while providing repeatable and reliable bonds. NanoFoil® is a reactive multi-layer foil that provides instantaneous heat for
Electronics Forum | Wed Apr 05 11:55:28 EDT 2006 | Cristina Oanca
I am working on a Substrate attach process. The package is gold plated, the preform is AuSn and the backing on the substrate is PdAg. I am using a Sikama reflow furnace. The profile has a 50 sec dwell time. I am over 280 degees C for a little over 1
Electronics Forum | Tue May 28 13:25:57 EDT 2002 | zanolli
Hello Anthony, The amount of solder that the process is capable of applying is the biggest limitation. I believe that solder paste is only approx. 50% metal by volume. When connectors are soldered in intrusive reflow, often the stencil is "overprint
Industry News | 2013-09-03 11:52:21.0
BEST's EZReball(TM) reballing preforms now are available as standard in 3 business days. Expedited packs are in available in 24 hours to help you with your reballing projects
Industry News | 2018-09-18 20:19:23.0
SHENMAO America, Inc. is pleased to announce plans to exhibit in booth 233 at SMTA International, scheduled to take place Oct. 16-17, 2018 at the Donald Stephens Convention Center in Rosemont, IL. 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. During the two-day expo, the company will showcase its PQ10 low-temperature solder paste and PF606-P245 new generation lead-free zero halogen solder paste.
Technical Library | 2023-01-17 17:12:33.0
Reflowed indium metal has for decades been the standard for solder thermal interface materials (solder TIMs or sTIMs) in most high-performance computing (HPC) TIM1 applications. The IEEE Heterogeneous Integration Thermal roadmap states that new thermal interface materials solutions must provide a path to the successful application of increased total-package die areas up to 100cm2. While GPU architectures are relatively isothermal during usage, CPU hotspots in complex heterogeneously-integrated modules will need to be able to handle heat flux hotspots up to 1000W/cm2 within the next two years. Indium and its alloys are used as reflowed solder thermal interface materials in both CPU and GPU "die to lid/heat spreader" (TIM1) applications. Their high bulk thermal conductivity and proven long-term reliability suit them well for extreme thermomechanical stresses. Voiding is the most important failure mode and has been studied by x-ray. The effects of surface pretreatment, pressure during reflow, solder flux type/fluxless processing, and preform design parameters, such as alloy type, are also examined. The paper includes data on both vacuum and pressure (autoclave) reflow of sTIMs, which is becoming necessary to meet upcoming requirements for ultralow voiding in some instances.
Technical Library | 2019-08-07 22:56:45.0
The requirement to reconsider traditional soldering methods is becoming more relevant as the demand for bottom terminated components (QFN/BTC) increases. Thermal pads under said components are designed to enhance the thermal and electrical performance of the component and ultimately allow the component to run more efficiently. Additionally, low voiding is important in decreasing the current path of the circuit to maximize high speed and RF performances. The demand to develop smaller, more reliable, packages has seen voiding requirements decrease below 15 percent and in some instances, below 10 percent.Earlier work has demonstrated the use of micro-fluxed solder preforms as a mechanism to reduce voiding. The current work builds upon these results to focus on developing an engineered approach to void reduction in leadless components (QFN) through increasing understanding of how processing parameters and a use of custom designed micro-fluxed preforms interact. Leveraging the use of a micro-fluxed solder preform in conjunction with low voiding solder paste, stencil design, and application knowhow are critical factors in determining voiding in QFN packages. The study presented seeks to understand the vectors that can contribute to voiding such as PCB pad finish, reflow profile, reflow atmosphere, via configuration, and ultimately solder design.A collaboration between three companies consisting of solder materials supplier, a power semiconductor supplier, and an electronic assembly manufacturer worked together for an in-depth study into the effectiveness of solder preforms at reducing voiding under some of the most prevalent bottom terminated components packages. The effects of factors such as thermal pad size, finish on PCB, preform types, stencil design, reflow profile and atmosphere, have been evaluated using lead-free SAC305 low voiding solder paste and micro-fluxed preforms. Design and manufacturing rules developed from this work will be discussed.
EZReball demonstration video. Simple and Fast new reball method! The new BEST EZReball™ process is an answer to your reballing problems. This unique method simplifies the reballing process allowing for better yields and faster reballing times. http:
Career Center | South Plainfield, New Jersey USA | Engineering
Alpha, a business unit of Alent plc and the global leader in the development, manufacturing and sales of innovative specialty materials used in a wide range of industry segments, including electronics assembly, power electronics, die attach, LED ligh
Career Center | South Plainfield, New Jersey USA | Management,Sales/Marketing
Alpha, a business unit of Alent plc and the global leader in the development, manufacturing and sales of innovative specialty materials used in a wide range of industry segments, including electronics assembly, power electronics, die attach, LED ligh
Career Center | Gurgaon, Haryana India | Management
� Heading daily morning meeting with all program managers, materials manager, test engineering manager, process engineering manager, quality control manager, planning manager, stock room manager, shipping department head. Discussion about incoming or
Minimizing Voiding In QFN Packages Using Solder Preforms SMTnet Express July 27, 2012, Subscribers: 25333, Members: Companies: 8933, Users: 33366 Minimizing Voiding In QFN Packages Using Solder Preforms First published in the 2012 IPC APEX EXPO
Surface Mount Technology Association (SMTA) | https://www.smta.org/education/presentations/presentations.cfm
: Communicating With Impact and Developing Your Authentic Presence Jun 24, 2020 Webinar: Europe Chapter: Solder Preform World - Not New Technology but a Very Interesting Option Webinar Jun 25, 2020 Webinar
