New Equipment | Assembly Services
BEST can provide you with analysis services for your BGAs using x-ray equipment. We rework thousands of BGAs and POPs every year, therefore, we have the expertise in BGA X-ray inspection. BEST can be your outsourced BGA x-ray inspection source for o
New Equipment | Rework & Repair Services
BEST offers contract PCB rework services. If you get in bind and need resources to perform difficult repairs or if the volume of work ahead of you is too extreme to get through in the deadline at hand then consider BEST PCB rework services. If you th
Electronics Forum | Thu Jun 02 22:40:13 EDT 2016 | slouis2014
Hi, yes have a few experiments initially i tried to increase the solder volume but component pin have insufficient solder. 1. The solder coverage do you calculate it by solder volume or solder area. 2. if i would achieve as you recommend 50-60 % woul
Electronics Forum | Mon Sep 30 09:26:04 EDT 2002 | itempea
Russ, first step would be to get IPC-7095 on BGAs. A few notes: There can be voids in solder balls, or at the solder joints to the BGA, or at the solder joints to the PCB. Various sources or reasons can be responsible for these voids. Voids can be
Used SMT Equipment | X-Ray Inspection
we are looking for wth following options: Automatic microfocus X-ray inspection system including: - 160 kV proprietary microfocus X-ray source (open design) with “unlimited” lifetime, including demountable collimator for enhanced image qualit
Used SMT Equipment | X-Ray Inspection
• Installed new in 2006 • Single Owner and used in a Lab Environment • Maintained by OEM and under OEM ASC, throughout original ownership • Currently offline and immediately available Tube Type: 160kv NF – Transmissive type (open tube ~ maintain
Industry News | 2020-06-07 04:44:33.0
PDR X-ray Solutions is pleased to announce that its 2D and 2D+ X-ray systems have set a new industry standard for high-quality X-ray images at an affordable price. Choosing the correct system for your requirements such as X-ray for quality control or X-ray for process control is vital for the success of both X-ray circuit board inspection programs as well as X-ray semiconductor inspection programs.
Technical Library | 2019-10-16 23:18:15.0
Despite being a continuous subject of discussion, the existence of voids and their effect on solder joint reliability has always been controversial. In this work we revisit previous works on the various types of voids, their origins and their effect on thermo-mechanical properties of solder joints. We focus on macro voids, intermetallics micro voids, and shrinkage voids, which result from solder paste and alloy characteristics. We compare results from the literature to our own experimental data, and use fatigue-crack initiation and propagation theory to support our findings. Through a series of examples, we show that size and location of macro voids are not the primary factor affecting solder joint mechanical and thermal fatigue life. Indeed, we observe that when these voids area conforms to the IPC-A-610 (D or F) or IPC-7095A standards, macro voids do not have any significant effect on thermal cycling or drop shock performance.
Technical Library | 2020-12-16 18:38:49.0
Fabrication of large structures using out-of-autoclave prepreg materials will lead to a great amount of savings in manufacturing costs. In the out-of-autoclave processing method, the presence of voids inside the laminate has been an issue due to the lack of high pressure during manufacturing. This study aims primarily to observe the moisture absorption response of composite samples containing different levels of void. By changing the vacuum level inside the bag during the manufacturing process, three different unidirectional laminates at three levels of void have been manufactured. After immersing the samples in warm water at 60°C for about one year, the moisture absorption level was monitored and then diffusion coefficients were calculated using Fick's law. Results show that the moisture absorption coefficient changes by %8 within the experimental range of void contents. The mechanical behaviour of these laminates has been studied at four different moisture levels by performing dynamic mechanical analysis (DMA) and short beam shear tests. Empirical results indicate that, in general, interlaminar shear strength and glass transition temperature decrease by moisture build-up inside the samples. DiBenedetto equation is proposed to make a correlation between the moisture content and glass transition temperature.
· What is the difference between SMT vacuum reflow soldering machine and ordinary reflow soldering machine? · What problems can be solved by smt vacuum reflow soldering machine? · What is the basic principle of vacuum reflow machine? · Ho
Events Calendar | Thu Oct 03 00:00:00 EDT 2019 - Thu Oct 03 00:00:00 EDT 2019 | ,
IPC Tech Ed Webinar Series: Ball Grid Array (BGA) and Bottom Termination Component (BTC) Design and Assembly Challenges: Reflow Profiling to Achieve Low Defect Rates and Successful Assembly! – Part 2
Events Calendar | Wed Mar 07 00:00:00 EST 2018 - Wed Mar 07 00:00:00 EST 2018 | ,
Solder Paste Qualification Testing - SMTA Webinar
SMTnet Express, October 17, 2019, Subscribers: 32,268, Companies: 10,900, Users: 25,212 Effect Of Voids On Thermo-Mechanical Reliability of Solder Joints Credits: Alpha Assembly Solutions Despite being a continuous subject of discussion
Inclusion Voiding in Gull Wing Solder Joints SMTnet Express August 30, 2012, Subscribers: 25432, Members: Companies: 8960, Users: 33565 Inclusion Voiding in Gull Wing Solder Joints First published in the 2012 IPC APEX EXPO technical conference
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/dage/products/x-ray-inspection-systems/explorer-one
detector allows you to easily navigate samples and identify defects quickly. Easily ensure IPC-A-610 and IPC-7095 compliance with in-built tools for dimension measurement, BGA void analysis, bump diameter and roundness and through hole filling
