Industry Directory | Consultant / Service Provider / Manufacturer
US manufacturer of microelectronic surface mount components including chip resistors, chip attenuators, RF terminations, dividers, splitters, couplers, low pass filters and thermal management devices.
Industry Directory | Manufacturer
The Future of Electronics is here - With Squink at your Desktop, print and assemble PCBs in minutes instead of weeks for less than a cup of coffee. Go from CAD design to PCB without the pain and cost.
Features: 1. Totally meet various requirements for the lead free processing. 2. WindowsXP operation system, Chinese/English can be swtiched online. 3. Standard air oven, Patent air system, using hot air convection conduction heat faster, more efficie
New Equipment | Tape and Reel Equipment
Why purchase expensive feeders for each component when you only need to place a few at a time? Count On Tools Inc. (COT), a leading provider of precision components and SMT spare parts, introduces the revolutionary StripFeeder system for loading tap
Electronics Forum | Thu Sep 13 17:57:59 EDT 2001 | davef
You're correct. It is curious. Possible angles to look at are: 1 WS609 loves moisture in the air. In high humidity shops, this paste hakes-on liquid. If this is the case, you should also see slumping, resulting in fine pitch bridging, and solder
Electronics Forum | Wed Jun 29 18:11:13 EDT 2005 | GS
Start from this: - check the air flow speed, if too much it can help to get components moved/blowed away. - Other cause (not so often)it could be moisture in PCB, so when degassing, may be trough vias, the pressure could blow away components. Regar
Used SMT Equipment | Turnkey Lines
Functional Pre-Owned Complete SMT Assembly Line - Still Operational (Subject to prior sell, I am listing this on other venues) Up for sale is a full turnkey SMT line and all of it's accessories, of which there are a lot, fe
Industry News | 2003-03-31 09:31:11.0
Electronic contract manufacturers face tough realities
Industry News | 2003-02-04 08:49:40.0
John Was the Product Manager for Orcad's Schematic Capture and PCB Layout Programs from 1994 to 2001
Technical Library | 2013-10-22 07:38:42.0
In conformal coating many components and printed circuit board locations must remain uncoated due to the insulating nature of the coating. The purpose of the conformal coating masking materials is to prevent migration of the conformal coatings into components that need to clear and designated keep out areas. This applies to both liquid conformal coating and Parylene processing. Get this basic process wrong and it can be a big problem, leading to the next stage of either repairing the conformal coating leak, stripping the conformal coating off the circuit board, removing a component to replace it or scrapping the board. This paper reviews typical masking application methods in conformal coating and provides advice on minimising problems.
Technical Library | 2020-11-24 23:01:04.0
The miniaturization trend is driving industry to adopting low standoff components or components in cavity. The cost reduction pressure is pushing telecommunication industry to combine assembly of components and electromagnetic shield in one single reflow process. As a result, the flux outgassing/drying is getting very difficult for devices due to poor venting channel. This resulted in insufficiently dried/burnt-off flux residue. For a properly formulated flux, the remaining flux activity posed no issue in a dried flux residue for no-clean process. However, when venting channel is blocked, not only solvents remain, but also activators could not be burnt off. The presence of solvents allows mobility of active ingredients and the associated corrosion, thus poses a major threat to the reliability. In this work, a new halogen-free no-clean SnAgCu solder paste, 33-76-1, has been developed. This solder paste exhibited SIR value above the IPC spec 100 MΩ without any dendrite formation, even with a wet flux residue on the comb pattern. The wet flux residue was caused by covering the comb pattern with 10 mm × 10 mm glass slide during reflow and SIR testing in order to mimic the poorly vented low standoff components. The paste 33-76-1 also showed very good SMT assembly performance, including voiding of QFN and HIP resistance. The wetting ability of paste 33-76-1 was very good under nitrogen. For air reflow, 33-76-1 still matched paste C which is widely accepted by industry for air reflow process. The above good performance on both non-corrosivity with wet flux residue and robust SMT process can only be accomplished through a breakthrough in flux technology.
Nordson ASYMTEK's Panorama S-Line delivers conformal coating process control in a compact footprint – with overlapping line processes that minimize manufacturing floor space use up to 50%.
Quick Overview: Motor-driven MDS-508-500/509-500 separates v-scored PCBs without stress to boards, components or solder joints. it is suited for medium to high-volume production,available with 460 mm or 600 mm (option) maximum cutting length. Cut le
Events Calendar | Thu Apr 22 00:00:00 EDT 2021 - Thu Apr 22 00:00:00 EDT 2021 | ,
Atlanta Chapter: Tech-Day
Career Center | Stouffville, Ontario Canada | Engineering,Maintenance,Management,Production,Purchasing,Technical Support
Innovation/Creativity Cost Saving Strategies Employee Motivation Customer Service Focus Program, Repair and Maintenance New Product Development Continuous Improvement Training & Development Process Planning & Labour O
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_third-placement-outline_topic2482.xml
; Drafting to turn them on/off with either check boxes or by turning the line width value to 0.00. Legend (silkscreen, trimmed around pins)Assembly (closed polygon)Component
| https://www.eptac.com/faqs/ask-helena-leo/ask/ceramic-ccas-and-aqueous-wash-and-bake-out-prior-to-parylene-coating
. I did find this test method on the web to check for the permeability of ceramic materials. I would think getting in touch with the component manufacturer to get the material specifications would help and they should be able to provide you with the permeability of the material they use
