Electronics Forum | Sat Apr 19 12:00:07 EDT 2003 | modeltech
I am completely new to SMT design and for my next project I plan to use SMT for the first time. Since production volumes of the PCB's will be low, hand soldering is definitely an option, and will be necessary for my prototype PCB assembly. My proble
Electronics Forum | Mon Apr 21 08:55:35 EDT 2003 | russ
The pads you use for Reflow will be be fine for handsolder. Russ
Electronics Forum | Mon Apr 21 21:46:04 EDT 2003 | davef
We agree with Russ.
Electronics Forum | Fri Apr 10 13:25:08 EDT 2009 | jefflkupkt
Layer 2 is the ground plane layer of a 4 layer board. After installing a 2.5 mm DC power jack and 0.1 center SIP header by hand, the ground pin disconnects and causes an open. My board supplier said they passed Electrical Test. Prepreg was within
Electronics Forum | Tue Apr 22 05:38:56 EDT 2003 | mk
This sounds like a job for ssd. No pad shapes to worry about. Look into http://www.sipad.net and please contact me off line to discuss it. Matt Kehoe mkehoe@sipad.net
Electronics Forum | Fri Apr 10 18:51:39 EDT 2009 | boardhouse
Hi Jeff, Your board supplier could be correct in this way. The board could have had just a hair left of copper on the circuit, which would hold up under the electrical test process, but once you powered it up, then there was enough juice to burn th
Electronics Forum | Mon Apr 13 12:06:53 EDT 2009 | jefflkupkt
BoardHouse, Thanks for the reply. The board supplier did cover the cost of the bare boards. Five years ago I saw a different part pass ET only to fail at final assembly test as well. One engineer called it "acid trap" on the inner layers where the
Electronics Forum | Thu Mar 04 16:40:06 EST 1999 | Dave F
| Hi, | | For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usual
Electronics Forum | Thu Mar 04 12:44:01 EST 1999 | SMTASSY
Hi, For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usualy redu
Electronics Forum | Sat Aug 06 15:23:51 EDT 2005 | Thaqalain Mahdi
I get to know from past 6 months of looking home electronics,that most of them failed b/c of solder fault. I never done soldering by hand,although done SMT Inspection jobs,now I know importance of soldering quality in electronics. I need to start ha
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