New Equipment | Solder Materials
I.C.T | Antioxidant Silver Soldering Tin Lead Free Solder Bar for Solder Wave ❙ Introduction I.C.T has been working with suppliers to develop environmentally friendly lead-free solders and related materials and can now supply products that delive
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
Electronics Forum | Fri Oct 20 14:13:32 EDT 2000 | DENNIS XIONG
Dear all, We have a PCB design mistake that causes exposed copper layers on the edges of breakaway locations. Although we fixed the design, but we already made a lot of boards plus many made before we found the problem. I wonder if any one have some
Electronics Forum | Sat Oct 21 03:55:14 EDT 2000 | DL
Dennis, I've seen this before, and in our case we didn't need to seal the edges because there was no concern of shorting or anything in the end product, this is a choice you will have to make, Does your end product have any protrusions or mounting h
Industry News | 2014-10-01 15:59:00.0
PCB provider Cirtech Electronics located in Cape Town, South Africa will be liquidating their assets utilizing the online auction services of GoIndustry and Baja Bid. Bidding for the auction will open promptly at 8:00am PDT on October 7th, 2014 and will begin closing at 6:00am PDT on October 14th, 2014.
Industry News | 2014-10-10 16:27:51.0
CB provider Cirtech Electronics will be liquidating their assets utilizing the online auction services of GoIndustry and Baja Bid.
Parts & Supplies | Repair/Rework
Repair parts include: CPU circuit board repair and maintenance of the I / O board, servo circuit board repair, the image processing circuit board repair, industrial CCD camera repair, frequency converter repair, PLC repair, touch screen repair, laser
Technical Library | 2019-06-11 09:36:13.0
An experiment was recently performed ACI Technologies for a customer that was interested in comparing the wetting of lead-free solders with varying temperature profiles and atmospheric conditions. In order to deliver an objective measurement of solder wetting (in addition to subjective inspection analysis), a simple wetting indicator pattern was added to the solder stencil in an area on the test vehicle that had exposed and unused copper.
Technical Library | 2019-06-04 10:19:46.0
Interconnection technology relies very heavily on the ability of the conductors on a printed wiring assembly to maintain reliable signal integrity. Harsh environmental factors can precipitate a loss of conductivity due to oxidation and corrosion. Connections are typically soldered or inserted using pressure fitted connectors to obtain enough surface contact to meet the electrical conductivity requirements. In pressure contacts, surface integrity is especially critical where the abrasive effects of retraction and insertion can wear off the metallic finish from the contact area. This can expose the underlying copper or nickel and lead to increased resistance at the contact points. These types of conductors are frequently found in card edge connectors where the terminations are plated with a layer of nickel and gold (frequently referred to as gold fingers). A hard gold is typically used containing very small amounts of nickel and cobalt to increase the wear resistance.
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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
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is easily oxidized, often caused problems that solder wetting angle is too largely exposed and copper pad phenomenon. Although a number of electronics manufacturers for operating costs consideration is not temporarily using nitrogen, but with the
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/solder-mask-defined-variant_topic2303.html
minimize capacitance. With NSMD pads, the pour-connected pads end up with extra exposed copper. They are effectively starved for solder paste, since the paste only covers the nominal pad area
