Electronics Forum | Tue Nov 28 21:16:17 EST 2006 | davef
J Rose at EMPF says: The introduction of no-clean solder fluxes in electronics manufacturing has given rise to greater levels of solder balling simply because the opportunity to remove them in the wash process does not exist. They are typically cause
Electronics Forum | Wed Jul 05 13:30:37 EDT 2006 | Chris Griffin
Likely causes of this are: -Preheat temp. too low -too much dross -uncured epoxy -PCB contamination ...also varify the solder flow over the wave is smooth.
Electronics Forum | Mon Jan 22 15:01:32 EST 2001 | aiscorp
CIM systems for electronics assembly have traditionally considered the PCB only. Final assembly "modules" are often attached to traditional systems to accommodate this common requirement for pre-PCB assembly, mechanical assembly, and final assembly
Electronics Forum | Wed Oct 10 13:51:08 EDT 2007 | petep
Coilcraft has posted the following and I am wondering how you folks are handling the use of coils in a Water Soluble world. PCB Washing and Coilcraft Parts Coilcraft tests for resistance to solvents per the following specification: Resistance to s
Electronics Forum | Mon Dec 08 16:10:02 EST 1997 | Donnacha Nagle
Q1. As part of a Final Year Thesis I am currently undergoing an in-deph study of the Screenprinting process for MPM 3000 Screenprinters. Ultimately I will be setting up control charts on line. Does anybody have suggestions in this area ?, I have alot
Electronics Forum | Thu Aug 22 22:19:13 EDT 2019 | sssamw
From the picture you present, it is a pin in paste part with pin length 2.2mm (a good length for 1.6mm PCB thickness), and seems the pin tilted and touch on PCB surface, thus causes up-part. Sorry I cannot image pin tilted not before placement but i
Electronics Forum | Mon Jul 13 06:30:59 EDT 2009 | hcarrasco
1.- Check your vacuum a.- Check filters b.- Check air flow (the vacuum is generated by a Ventury using air flow, not air pressure) c.- Vaccum vias (Possible linth inside the vacuum lines) 2.- Check the nozzle condition (Probably broken o
Electronics Forum | Tue Dec 16 14:48:03 EST 1997 | Justin Medernach
| Q1. | As part of a Final Year Thesis I am currently undergoing an in-deph study of the Screenprinting process for MPM 3000 Screenprinters. | Ultimately I will be setting up control charts on line. | Does anybody have suggestions in this area ?, I h
Electronics Forum | Wed Feb 28 00:01:47 EST 2007 | Muhammad Haris
Hi, The distance between the two terminations/endings/pads of 0603 (0201)is 0.15mm i.e. lesser than than the distance between the 0603 and through hole i.e. 0.5mm My ques is that, then why its termination doesnot short as it has a minimum distance.A
Electronics Forum | Thu Mar 05 11:53:09 EST 2009 | dcell_1t
Hello to all. for certain time, we have been struggling with some issues on a PCB where have tombstoning on 0402 components (due to pad design) and dewetting in qfp256 0.5 mil pitch (discussed on another threads on this forum) component, we have pro
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