Electronics Forum | Thu Jul 15 16:29:49 EDT 1999 | Charles Morris
We are currently assemblying several different board type with gold plated lands with varying results. Can any of you that has successful experience in this area give me some pointers. What paste do you use? Do you use the recommended reflow profi
Electronics Forum | Tue Jul 06 11:26:38 EDT 1999 | Carol Zhang
We are looking for some subcontractors to do surface mount technology boards for us. Is there anything I should pay specific attention when I visit the subcontractor's site? Thank you for any advice
Electronics Forum | Mon Jun 28 13:34:06 EDT 1999 | Scott Cook
| Hey Scott, | | Good posting. However, what test did you perform and what was the nature of your technology? Both ionics (SMD600) and SIR on RF product to the 3 Gig range. Power amps and Xceivers. Technology was mixed; double sided SMT. My bare b
Electronics Forum | Thu Jun 24 11:41:10 EDT 1999 | John Thorup
| Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody hel
Electronics Forum | Sun Jun 20 16:58:31 EDT 1999 | Chrys Shea
| Has there anyone bold enough to try this in their shops? My cubemate just got through telling me that at his last shop, they had bare copper boards (no HASL, no OSP, no nothing), with minimal solderability problems. | Is your cubemate the same gu
Electronics Forum | Tue Jun 15 12:07:47 EDT 1999 | Dave F
| Dear All, | How does one determine the natural frequency of a pc board. | Put it on a variable frequency shake table and shake it until it starts flopping back and forth like a tail on a six month old puppy. TTYL Dave F
Electronics Forum | Mon Jun 14 15:59:16 EDT 1999 | JohnW
| We are a medium sized PCB assy. house manufacturing about 2000 motherboards a day. There is a major problem we are facing at the wave soldering stage, i.e. warpage of the PCB. As soon as the PCB touches the wave it warps severely from the centre
Electronics Forum | Thu Jun 17 10:25:43 EDT 1999 | Brian Wycoff
| | We are a medium sized PCB assy. house manufacturing about 2000 motherboards a day. There is a major problem we are facing at the wave soldering stage, i.e. warpage of the PCB. As soon as the PCB touches the wave it warps severely from the centr
Electronics Forum | Tue Jun 08 09:37:20 EDT 1999 | Rob C
Anyone know a independent PCB inspection of BGA (X-Ray). We have several test boards that need BGA inspection.
Electronics Forum | Sat Jun 05 07:23:20 EDT 1999 | Dave F
| Where I can find some informations about repairing of SMT boards? | | Thanks | | Marcos | Marcos: Ya know, repair is that "dirty little" part of the business that all try to ignore, don't want to fund properly, and creats more angst than propa
