Electronics Forum | Fri Mar 17 11:27:58 EDT 2023 | proceng1
We need more info. What kind of machine? What do you mean by "went to the end"? Like the end of the travel? Which axis? Is there an error on the screen? What happens when you try jogging it? Maybe post a couple photos?
Electronics Forum | Tue Dec 31 02:13:14 EST 2019 | agoesfirmanto
This PCB model has been in production since 2018 and stopped production almost 1 year ago, now it has started production again and I found this problem. at the time of production in 2018 this problem did not occur. while the parameter settings do not
Electronics Forum | Tue Dec 08 08:52:42 EST 2009 | cunningham
How do people prepare there solder paste for screen print? We currently remove them from the fridge and mix them in a 500g solder paste tub mixer to mix the flux and paste together we waste to much paste at the moment as we only use the tub for 1
Electronics Forum | Mon Dec 30 23:37:47 EST 2019 | agoesfirmanto
Hello All, I am a SMT Engineer from Indonesia, I am facing the problem of soldering balls in only one IC location, in other areas there are none. solder ball defect almost 30%. I have done several actions but failed to reduce the solder ball. 1.
Electronics Forum | Thu Feb 08 09:07:22 EST 2001 | Hussman
OK, without knowing the specifics, why does everyone blame the oven? Most solder balls occur around R's and C's in almost every shop I've been to. The best place to start looking is the screen printer - not the oven. Sure the oven is the last proc
Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef
Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c
Electronics Forum | Wed May 08 23:18:58 EDT 2002 | ianchan
Hi mates, have this SMT production issue : A) We have a leadless-chip-carrier(LCC) IC package that is classified under the Land-Grid-Array(LGA) package family. B) The LCC is 4mm x 4mm, and has 28 tin plated pads located beneath the outside perimet
Electronics Forum | Mon Aug 31 07:10:40 EDT 2020 | bukas
I hacked machine to only spend nitrogen when solder pump is on, this made about 80% save when you count in frame change, fluxing and operator slacking
Electronics Forum | Thu Apr 06 07:53:35 EDT 2000 | jacob lacourse
I have also come across this very same problem and found that our screen vendor made a mistake on our screen. Check the thickness of your screen it should be about six thousandths if it's eight thousandths then you are most likely depositing to much
Electronics Forum | Thu Sep 03 01:15:03 EDT 2020 | kylehunter
> I hacked machine to only spend nitrogen when > solder pump is on, this made about 80% save when > you count in frame change, fluxing and operator > slacking Hah! I was thinking of doing just that. What'd you use to trigger the sol
