Electronics Forum | Sat Apr 04 17:11:29 EST 1998 | Steve Gregory
| Can anyone help with advice on the possibility | of "rejuvinating" aged solder paste | for SMT applications. | Thanks! Peter, I wouldn't even try...even if you had all the different chemicals that you needed to do it properly, the formula's f
Electronics Forum | Fri Apr 03 19:04:02 EST 1998 | Steve Gregory
Hi Jacqueline! The dreaded white residue huh? YUCK! This seems to be a ongoing issue...probably because there are many different things that can possibly cause this. There's a real good article about the different causes of this problem at Kest
Electronics Forum | Mon Mar 30 12:51:40 EST 1998 | Justin Medernach
| Hi | Anybody got advice on the online storage of sensitive ICs. ie dessicator cabinets with Nitrogen or dry air. I am looking at Nitrogen, but it is a costlty option. Appreciate any inputs. | Rgds | Liam Liam, Depending on the amount you need store
Electronics Forum | Mon Mar 30 12:55:16 EST 1998 | Justin Medernach
| Hi, | We have encountered de-wetting issues with gold plated components( SMT LEDs ). | The problem comes and go and we yet to locate the root cause ( process, component or solder paste etc ). | The rest of the components on the boards are not havi
Electronics Forum | Thu Mar 26 11:25:21 EST 1998 | Earl Moon
In December and January (1997 & 1998) a number of people requested information regarding component cracking. I overlooked this until recently thinking design and process requirements were violated. After reviewing the last 14 months consulting effort
Electronics Forum | Tue Mar 24 11:20:18 EST 1998 | Earl Moon
| Anyone have an idea how small a via must be to inhibit significant solder volume escaping into the via? Typically, micro vias are drilled and plated to about .003" diameter. To avoid significant solder "drain off," they should be drilled as shallow
Electronics Forum | Mon Mar 16 20:00:47 EST 1998 | Jon Medernach
| Maybe I'm doing something wrong, but it seems to me that The Forum takes a lot longer to open up now. It also takes a lot longer to get back to the main Forum page, after reading an individual message, and hitting the "BACK" button. What's up? Is
Electronics Forum | Mon Mar 16 04:46:25 EST 1998 | Grant Petty
We have just go another batch of PCB's from our loaders, and some of the boards are severely warped. The boards are PCI cards and one of the boards is 9mm out at one end. The PCB is 210mm long and 4 layers. I am wondering if anyone knows what could
Electronics Forum | Mon Mar 16 16:57:59 EST 1998 | Earl Moon
| We have just go another batch of PCB's from our loaders, and some of the boards are severely warped. | The boards are PCI cards and one of the boards is 9mm out at one end. The PCB is 210mm long and 4 layers. | I am wondering if anyone knows what
Electronics Forum | Thu Mar 05 16:29:22 EST 1998 | Brian Stumm @ ETS
| Can anyone advise a good starting point for a temp profile for | on 0.05" and 1206 component boards? These boards are simple | by todays standards and do not contain any fine pitch or | other special components. | Thanks in advance... | MM Be hap
winsouce.jpg)
.png)
