Technical Library | 2019-05-24 09:22:59.0
There is a smaller process window and a much narrower margin of error when creating and using lead-free reflow profiles for surface mount parts on printed circuit boards (PCBs). Solder balls, dewetting, tombstones, voids, and head-on-pillow problems will occur much more frequently because lead-free alloys behave differently than eutectic pastes. Problems are compounded due to the extra heat necessary for some lead-free pastes to reach their melting points.
Industry News | 2021-01-06 17:17:19.0
The SMTA Capital Chapter is excited to host the first chapter webinar of 2021 on January20that11:00 AM EST.Fred Dimock, BTU International, will be presenting "Operation of a Vacuum Reflow Oven with Updated Void Reduction Data."
Industry News | 2018-12-11 19:24:48.0
The SMTA Capital Chapter is excited to host a Chapter Meeting on January 10th from 5:00 PM to 7:30 PM at ZESTRON, Manassas, VA. Fred Dimock, BTU International, will be presenting “Operation of a Vacuum Reflow Oven with Preliminary Void Reduction Data.”
Training Courses | | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Events Calendar | Mon Dec 02 00:00:00 EST 2019 - Mon Dec 02 00:00:00 EST 2019 | ,
Webinar: QFN/LGA Design, Assembly Process Issues & Reliability Failures
Used SMT Equipment | Soldering - Reflow
Hello and thank you for your interest in our Heller 1088EXL Reflow Oven. See attached pictures and information Heller Reflow Oven Model Number: 1088EXL Serial Number: 0201DA1A1-53956 Year: Feb 2001 Left to Right Process Flow 8 heating zone for
· 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
Technical Library | 2020-11-09 16:59:53.0
A customer contacted ACI Technologies regarding a high failure rate of their assemblies. They provided assemblies to be X-rayed and inspected for the purpose of identifying any process related issues such as (but not limited to) solder and assembly workmanship and evidence of damage due to moisture related problems during reflow (a.k.a. "popcorning"). Moisture damage usually appears as physical damage to the component. The first indication of moisture damage would be externally observable changes to the package in the form of bulging or fractures to the outer surface of the component, an example of which is shown in Figure 1. Internally observable indicators of moisture damage typically include fractures to the die inside the package and lifted or fractured wire bonds. These conditions would be apparent during transmissive X-ray inspection. Another symptom of moisture related damage would be inconsistent solder joint sizes that result from package deformation during the liquidus phase of the reflow process. None of these indicators of moisture related damage were present on the customer samples.
Industry Directory | Manufacturer
DONGGUAN KINGSUN AUTOMATION TECHNOLOGY CO.,LTD is a company which mainly provide used and new SMT parts, provide repair SMT key parts service,new/used SMT machine trading,SMT consumables and Peripherals equipment,Clean room, ESD..
Parts & Supplies | Pick and Place/Feeders
Many companies first applied SMT second-hand placement machines, and the selected placement machines were relatively stable, with low failure rate, easy maintenance, and important maintenance costs. Therefore, there are still many concerns about buyi
