Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
I've been struggling with this problem for a while. We ha... - Apr 24, 2003 by yukim
If what you say is accurate, two thing come to mind: * Pads... - Apr 25, 2003 by davef
Did you check board orientation into the reflow oven? (The L... - May 01, 2003 by Jesus Fragoso
Did you check if the height of solder mask between two pads ... - May 03, 2003 by
Did u ever try a anti-tombstone solder paste to try to elimi... - May 04, 2003 by
Maybe you can check the thickness of the solder mask between... - May 05, 2003 by gaoliangcheng
Do not 'ON" the nitrogen during reflow. If the pad of the ... - May 05, 2003 by Vijay
Do not 'ON" the nitrogen during reflow. If the pad of the ... - May 05, 2003 by Vijay
Stencil thickness = 175 microns? If my math is correct, 175... - May 05, 2003 by
Hi, This is an interesting point. I use Koki paste from J... - May 05, 2003 by
A micron is 1 millionth of a meter, this term is no longer u... - May 05, 2003 by RDR
Hi, It is expected that lead-free will have reduced toms... - May 05, 2003 by Kris
Hi, Ok, thanks for the reply, and this is really interest... - May 06, 2003 by
Hi, No, the layout is different, but both have chips locate... - May 06, 2003 by yukim
The stencil thickness was about 7 mils and was changed to 6 ... - May 06, 2003 by yukim
Got it, thanks, I've always used english mils. Have you sol... - May 06, 2003 by
Yes, we did try: built a lot of 200 PCBs with Sn62Ag2 solder... - May 06, 2003 by yukim
Hi SnAg is a binary alloy and does not have the same effe... - May 07, 2003 by Kris
Kris The majority of our tombstoning in very small passiv... - May 07, 2003 by davef
Hi, What brand passive components would you recomend for ... - May 07, 2003 by
We like the passive components that the buyer gets to the st... - May 07, 2003 by davef
Yukim, Just another thought (way off the solder paste ... - May 16, 2003 by
If the only difference between the two products is the board... - May 16, 2003 by swagner
The term is still valid and used everyday by those in the di... - May 16, 2003 by Jon Fox
Hi Grant, From what I know, it has something to do with t... - May 19, 2003 by
Several things for your reference: 1. Starting with data co... - May 21, 2003 by
Dear sir, I think so with every idea , everyone is correct ... - May 26, 2003 by
Okay, Okay, I will convert to the metric system. I would st... - May 30, 2003 by RDR
A question regarding the rampup slop: as we cannot make the ... - Jun 03, 2003 by yukim
Hi, do you know how much the problem can be reduced by using... - Aug 28, 2003 by yukim
Yukim, I had experienced this problem with 0402 package. I ... - Sep 26, 2003 by
Hi David, Can you send me a copy of this article "Reducin... - May 20, 2004 by
Hi, Very interesting article on tombstone issue, i'm facin... - Jul 30, 2004 by
yukim