Industry Directory | Manufacturer
MPIQC is an Electronic Manufacturing Services (EMS) company. Our services are provided at the highest standards to be recognized as a global leader in OEM optimization in IPC Class 2 & Class 3 manufacturing.
New Equipment | Rework & Repair Equipment
BEST HotDots™ are designed to simply and cleanly attach jumper wires on a board. HotDots™ are built to survive at high temperature as both the adhesive and the polyimide material are designed to withstand wash and reflow temperatures. HotDots™ are a
New Equipment | Assembly Services
S-Bond Technologies offers both conventional flux soldering and S-Bond soldering. As an Active Solder, S-Bond solder is flux-free eliminating the potential of contamination and corrosion associated with fluxes. Additionally, S-Bond’s limited capillar
Electronics Forum | Thu Jan 15 15:16:56 EST 2009 | jsherrow
We recently had our customer report a component failure trend of a few percent. Analysis indicates wire bond failure internal to a d-pak caused by what appears to be chlorine contamination. We're running a lead free process with aqueous wash. 700 co
Electronics Forum | Wed May 18 07:22:06 EDT 2005 | davef
Wire bonds don't stick when bonded * Check pull and shear strength. * Depending on point of failure, review parameters. * Listen during bonding, if there is a high pitch buzz, there is vibration in the system somewhere, "seek and destroy". * Get the
Industry News | 2013-10-28 16:31:54.0
IPC Conference on Solder and Reliability: Materials, Processes and Tests, November 13–14 in Costa Mesa, Calif.
Industry News | 2018-10-18 08:21:10.0
How to Prevent Non-Wetting Defect during the SMT Reflow Process
Technical Library | 2013-02-07 17:01:46.0
Silicone contamination is known to have a negative impact on assembly processes such as soldering, adhesive bonding, coating, and wire bonding. In particular, silicone is known to cause de-wetting of materials from surfaces and can result in adhesive failures. There are many sources for silicone contamination with common sources being mold releases or lubricants on manufacturing tools, offgassing during cure of silicone paste adhesives, and residue from pressure sensitive tape. This effort addresses silicone contamination by quantifying adhesive effects under known silicone contaminations. The first step in this effort identified an FT-IR spectroscopic detection limit for surface silicone utilizing the area under the 1263 cm-1 (Si-CH3) absorbance peak as a function of concentration (µg/cm2). The next step was to pre-contaminate surfaces with known concentrations of silicone oil and assess the effects on surface wetting and adhesion. This information will be used to establish guidelines for silicone contamination in different manufacturing areas within Harris Corporation... First published in the 2012 IPC APEX EXPO technical conference proceedings.
Technical Library | 2019-04-10 22:08:31.0
The stimulating impact of the automotive industry has sharpened focus on immersion tin (i-Sn) more than ever before. Immersion tin with its associated attributes, is well placed to fulfill the requirements of such a demanding application. In an environment dominated by reliability, the automotive market not only has very stringent specifications but also demands thorough qualification protocols. Qualification is ultimately a costly exercise. The good news is that i-Sn is already qualified by many tier one OSATs. The focus of this paper is to generate awareness of the key factors attributed to soldering i-Sn. Immersion tin is not suitable for wire bonding but ultimately suited for multiple soldering applications. The dominant topics of this paper will be IMC formations in relation to reflow cycles and the associated solderability performance. Under contamination free conditions, i-Sn can provide a solderable finish even after multiple reflow cycles. The reflow conditions employed in this paper are typical for lead free soldering environments and the i-Sn thicknesses are approximately 1 μm.
This video demonstrated the use of BEST Inc HotDots(TM) which allow wires to be affixed to the PCB or other surfaces-even when those surfaces go through reflow. There are other similar products out there but none of which can be readily customized no
The Microelectronics Lab was established to meet the rising need for advanced systems development and packaging to address the emerging challenges and issues facing today’s electronics assemblies. Advanced design and modeling software enables STI to
Career Center | Boulder, Colorado USA | Engineering,Production,Quality Control
Senior-level micro-electronic technician capable of independent manufacture of custom hybrids, focal plane assemblies, and prototype detector assemblies in cleanroom environment (in Advanced Packaging and Detector Laboratory). MINIMUM QUALIFICATIONS
SMTnet Express February 7, 2013, Subscribers: 26168, Members: Companies: 13281, Users: 34286 Effect of Silicone Contamination on Assembly Processes Silicone contamination is known to have a negative impact on assembly processes such as soldering
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