Electronics Forum | Fri Jan 08 21:46:49 EST 1999 | Dean
| | This is a question for those of you who actually assemble components onto a board. | | Any idea what the "industry standard" is for fall out on assembled PCB's? I realize that the controls put in place in your processes will effect your overall
Electronics Forum | Thu Oct 15 17:14:50 EDT 1998 | Justin Medernach
| Hi Folks, | As I travel our industry it seems to me the trend is to move from finner and finner pitch QFP's to array packages (BGA's, CSP's, etc.). Do you folks see the same trend? What is the finest pitch QFP package you have used in your process?
Electronics Forum | Fri Oct 02 07:26:50 EDT 1998 | smd
I didn't use my real name because I don't want to get bombed with phone calls and emails. We are an OEM looking to put in a SMT line soon. Is this GSM a decent machine? How much does it cost? | | Also and info on decent screen printers and reflo
Electronics Forum | Thu Sep 24 10:19:55 EDT 1998 | Dave F
| i am working on a no-clean process implementation project in a company. i want to change a board to no-clean which had dendrite problems underneath the small resistors on the bottom side(in smt).i want more information on the exact cause of dendrit
Electronics Forum | Tue Sep 01 10:39:30 EDT 1998 | Mike
| | | We are experiencing shorting on a BGA. The part has a 1mm pitch with a 196 I/O count. The problem seems to pop up without warning & disappear in the same manner. | | | Our pad design is .020" diameter pads with .025" solder resist diameter.
Electronics Forum | Thu Aug 27 15:40:50 EDT 1998 | Justin Medernach
| | | | | Hi, | | | | | Does anyone has experiences in reflowing Ceramic BGA and found solder wicking ? Solder wicking has the syndrome that solder being wick from the pad and ended up in the leads. | | | | | We have rule out the possibility of not p
Electronics Forum | Mon Aug 10 21:52:34 EDT 1998 | Dave F
| | | Is there any problem using SMT on gold boards? 15 years ago we were told not to use gold boards, but I can't remember why. Judging by the other postings it now appears to be common. Only problem I see is that the nickel should be plated, not
Electronics Forum | Tue Aug 11 07:51:57 EDT 1998 | Earl Moon
| | | | Is there any problem using SMT on gold boards? 15 years ago we were told not to use gold boards, but I can't remember why. Judging by the other postings it now appears to be common. Only problem I see is that the nickel should be plated, n
Electronics Forum | Fri Jul 24 12:12:52 EDT 1998 | smd
200 boards/Hr and oven will reflow ~180 boards/Hr but the P&P machine will only place 700-950 CPH | | when setup is taken into account. Minimum pitch is normally .020" and we place an Avg. of 491 TSSOPs and 217 BGAs a month. | | We don't even bother
Electronics Forum | Fri Jul 24 16:02:13 EDT 1998 | Justin Medernach
200 boards/Hr and oven will reflow ~180 boards/Hr but the P&P machine will only place 700-950 CPH | | | when setup is taken into account. Minimum pitch is normally .020" and we place an Avg. of 491 TSSOPs and 217 BGAs a month. | | | We don't even bo
