Electronics Forum | Wed May 19 14:09:29 EDT 1999 | JohnW
Wendy, I've done this before using a machined piece of FR4 material to hold the board (machined like a DEK plate )in place at the press . It ensures that the boards are alway's in the right place and that none of the components are damaged..also sto
Electronics Forum | Thu May 20 10:09:16 EDT 1999 | Eric Maddy
| I am currently an employee of Cabeltron Systems in Ohio. Our manufacturing divisions have been outsourced to Celestica, strictly a business deal. No hard feelings there. Our building is located in Southern Ohio and will soon be vacant with 300 peop
Electronics Forum | Fri May 14 00:28:09 EDT 1999 | Mike D.
| I am seeing reflow around my signal pins after being subjected | to a profile of 204c for 1 minute and 225c for a min of 30 seconds. Signal pins are soldered into a copper plated alum. case with SB5 and then silver plated. The pins have a hot oil
Electronics Forum | Thu May 13 09:41:25 EDT 1999 | Chrys Shea
| | WARNING: This is a plug. | | | | I have read post on this site where the question is raised: "My machine can do 80 units per hour, but I am only getting 35 - WHY?" | | | | Well I have written w95/database code that reads FUJI output files (CPII
Electronics Forum | Thu May 06 09:17:30 EDT 1999 | Sokkhon Ou
| Hello Kevin, I work for a leading manufacturer of paste and adhesives and have alot of experience with printing smt adhesives. We also have publications that can lead you to better understand the process. | Printing of adhesives are as easy as prin
Electronics Forum | Wed Apr 28 09:37:54 EDT 1999 | Justin Medernach
| We use Immersion Gold (AuNi) for our 20 mil pitch and BGA boards. | Lately, we have been having solderability problems with boards with this surface from some of our suppliers. | | We are considering trying boards with White Tin solderable surface
Electronics Forum | Tue Apr 27 16:21:09 EDT 1999 | Chrys Shea
| Another basic soldering question. I notice that lead-free solders have become required for plumbing applications due to legislation. In a local hardware store, I noticed the existence of lead-free solders (based upon tin-copper I think) with a me
Electronics Forum | Mon Apr 26 09:06:41 EDT 1999 | Murray Pulman
Help Guys!! We sub con assemble small to medium batch runs of mixed tech boards inc fine pitch BGA o4o2 etc. As usual we get all the crap to build that no-one else wants, however lately some customers are getting a little more serious with their sa
Electronics Forum | Mon Apr 26 09:46:05 EDT 1999 | C.K.
Chrys: I have checked all the basic elements of Wave solder joint formation: fluxing, preheating, and lastly soldering. For checking the fluxer, i used a product from ECD that's very similar to what you desribed called the flux-o-meter. It did a
Electronics Forum | Wed Apr 21 19:09:10 EDT 1999 | Earl Moon
| | Does anyone have any experience with soldering 50mil pitch BGA's that have a via in the pad, the size is .012 The via will be masked off on the bottom side of the board. Need to know what precautions or problems if any I might encounter. The proc
