Electronics Forum | Tue Dec 17 16:27:02 EST 2002 | davef
I�m not clear on the problem. What I get: * Your fabricator did not deliver the product that you asked for in your purchase order. * Pad. Land. A portion of a conductive pattern used as a termination area. Metal surrounding a hole on a printed ci
Electronics Forum | Wed May 20 15:22:13 EDT 1998 | Chris Fontaine
How about masking the metal surfaces with Kapton tape?
Electronics Forum | Fri Feb 02 12:37:11 EST 2007 | kennyg
For pads such as a d-pack... what is the effect on heat dissipation of leaving the unsoldered portion of the pad exposed metal or covering with solder mask? Is there a percentage of heat dissipation that is inhibited by covering with mask?
Electronics Forum | Fri Aug 04 04:26:31 EDT 2000 | Charles stringer
I am experiencing a problem when soldering down a TO263 package. The device has a large solderable tab (approx 8mm square)on the back and 5 leads. Sometimes the leads are not soldered to the board properly. I am using a metal mask with 9 "windows" of
Electronics Forum | Tue Oct 04 20:18:17 EDT 2011 | denmark
Sir *We are using "HOT BAR SOLDERING" we are bonding "FFC" and "PCB" at 0.5mm pitch. Machine settings: Heating Temp. 310º, Colling Temp. 190º Delay Time 1sec We also using "BECKLITE" as Soldering Jig that can resist up to 400º. We are using 1 is to
Electronics Forum | Mon Dec 06 06:06:44 EST 1999 | Glen brian
Recently, my plant met the problem of bridging, a metallic link, lying on the solder mask and joining nearby joints. It is very diffcult to observe by our inspector and may be only discovered with ICT testing. This defect ocurrs randomly around the
Electronics Forum | Fri May 31 17:04:02 EDT 2002 | davef
We use boots / shunts er wutt ever you call them to protect solderable component surfaces from wave soldering. Not sure how it would work in your case try: * Kinnarney Rubber 450 Main St. P.O.Box 37 Mantua, N.J. 08051 609-468-1320 fax 7438 http://ww
Electronics Forum | Fri Dec 12 10:28:30 EST 1997 | David Syracuse
I am interested in locating a water soluble resist mask that does not leave a residue after wash and is easy to work with during the screen printing process. I have tried the Alpha Metals 110 and 220 solder mask and have found that it does not leave
Electronics Forum | Fri Feb 20 02:09:23 EST 2009 | nibirta
Hi all, I have a question regarding some wave pallets having metallic traces of Titanium. The solder mask is blistering in some locations on the PCB and I am wondering if this Titaniumn may have an influence by incresing locally the temp. Also we ar
Electronics Forum | Mon Dec 30 23:37:47 EST 2019 | agoesfirmanto
Hello All, I am a SMT Engineer from Indonesia, I am facing the problem of soldering balls in only one IC location, in other areas there are none. solder ball defect almost 30%. I have done several actions but failed to reduce the solder ball. 1.
