Electronics Forum | Sat Jul 11 03:01:29 EDT 2020 | researchmfg
The bubble inside BGA ball locate at via in pad and apply the resin plug hole.You shall check the cooper plating quality on PCB pad. If there is thin plating or broken on the pad then air will come from the resin plugged via and be trapped inside the
Electronics Forum | Thu Apr 28 11:36:13 EDT 2022 | kumarb
It appears to be a female DIN connector. Can you count the # of holes inside this connector ? So far, unable to locate the same mating connector but the picture is not perfectly clear.
Electronics Forum | Tue Mar 23 09:30:35 EST 1999 | Dan Hughes
Nancy, The mounting hole locations in most standard frames are the universal in both the screen and stencil industry, more over some of the newer machines clamp the frame in place. Most printers are very adjustable this way. If you were using a "qu
Electronics Forum | Fri Jan 31 05:18:10 EST 2003 | reg
We have a customer who is going to be using the new Snapshot process. Has anyone used this process all ready. Who did you use to make the tooling etc. Was there any problems that arose during this process. The process involves screening balls into s
Electronics Forum | Fri Sep 04 07:26:23 EDT 2009 | Sean
Dear Davef, Thanks for sharing with me..I observed this creeping corrosion tend to appear on PCB via hole rather than other PCB location. Why this problem did not appear on PCB traces? Besides, I also notice that this problem only appear on the PC
Electronics Forum | Wed Sep 13 20:04:37 EDT 2006 | mika
Hi, We have a customer that want us to produce a single sided 0.4 x 100 x 50 mm size RoHS pcba approx 1000 of them. The board only contains three 2.54mm pitch Non P.I.P, SMT-connectors. We have never produced such a thin pcb:s before. We are thinkin
Electronics Forum | Fri Jul 07 03:27:31 EDT 2006 | dougs
Hi folks, thanks for all the tips. We have run our first batch of these flexi boards now. I had the PCB suppliers make me some 1.6mm FR4 carriers to lay the boards on to carry them through the process. (1 flat & 1 with cutouts for the second side)
Electronics Forum | Sun Jun 07 09:58:12 EDT 1998 | Bob Willis
Dummy pads can work well on through hole parts and are often used in the Far East and on IBM products. If you take a VCR or TV board you will often see this trick being used. Alternativly you can stagger the pads at the trailing edge that works well.
Electronics Forum | Thu Jun 26 09:04:43 EDT 2003 | caldon
We had a "Spring loaded" fixture that pulled the Flex tight and used loads of Board supports. There were pins that went through the Connectors holes and held the flex firm. We only had a few components so it was no problem. Lucky for us because the f
Electronics Forum | Mon Jan 09 23:24:47 EST 2017 | saju86ece
Hi, We are doing pin in paste reflow process in one our product ( but paste printed on bottom side of the board and top side will be assembled through hole component)in which faced cold solder issue in THT capacitor location after reflow. The solder
