Electronics Forum | Thu Mar 20 12:04:42 EST 2003 | Ren� Sandoval
Hello Garcia: For my experience in Tombstone problems I recommend you to check the next points: -Use Solder paste with 2% silver -Use 5 mils Th Stencil -In some machines , for 0402 or smaller componentes , you require an special holder for the feed
Electronics Forum | Tue Mar 18 09:11:14 EST 2003 | Rob C
With a standard valve and no-clean solder paste you may get a few good dots. But, repeatability will be terrible too many variable, air-pressure, board height (two post nozzle), valve time on/off, retract height, retract time, etc... A RMA paste wi
Electronics Forum | Fri Mar 21 15:00:18 EST 2003 | Jones
From viewing the company web site I see that they are a Japanese company with one location in the states. You may want to call them and ask about spare parts and if they will provide you with any type of technical support since the equipment is being
Electronics Forum | Fri Mar 21 10:28:27 EST 2003 | mantis
Sorry i didnt explain it vey well,the parts that are misaligned are always sitting next to these particular tanatlum capacitors.It affects 0805 parts and A tsop36 and can even cause a short on a bga right in the corner where the tant sits.If you chan
Electronics Forum | Fri Mar 21 11:25:07 EST 2003 | jonfox
His subject line is "Tantalum caps causing misaligned parts". Come on guys, I think he answered the question already. Is there any via/traces that connects the pads of the TANT to the 0805 and the BGA. Your two parts may be physically the same, bu
Electronics Forum | Mon Mar 24 04:00:34 EST 2003 | emeto
Hi mantis, this effect you are talking about is very interesting.I guess there is a difference in technology of both vendors.It;s obvious.But we should find the reason. One question and one simple sudgestion:What excatly is your oven? And have you pa
Electronics Forum | Mon Mar 24 10:02:44 EST 2003 | ksfacinelli
I have a board that has a few TO220 packages with the 5 lead style. The problem I am encountering is forming the the leads. The TO220 package needs a 90 degree bend with pins 2 and 4 staggered. I am "not" doing thousands but would like to find a co
Electronics Forum | Tue Mar 25 11:32:15 EST 2003 | MA/NY DDave
Hi Kevin, Well I or we, used to do this all the time in PiH or THT days with some small hand forming tools (dies) and also some automated ones. You already have gotten the phone numbers for a couple of the small electronic assembly hand tools place
Electronics Forum | Wed Mar 26 17:09:52 EST 2003 | Jos�
For the Resistor Network Array SMT 0402- 8 pads I'm using a Stencil 5 mils Th. with the next appertures : Corners-biggers pads: 24 x 12 mils Center pads : 9 x 24 mils This Appertures are working excelent for the RN's that his appertures are parallel
Electronics Forum | Sat Mar 29 01:59:09 EST 2003 | iman
Yep, only the MLF have this blowhole/pinhole issue. Other components like SOT(transistor), CAP, RES are hey-o-kie. Btw, MLF = micro lead frame (IC/LGA) package. looks like a BGA without the solder balls. has direct attachment to the PCB ENIG pads wi
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