Electronics Forum | Thu Apr 22 20:26:39 EDT 1999 | Dave F
| | On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although whe
Electronics Forum | Tue Apr 28 14:50:43 EDT 1998 | Chrys
| | We have to mount our SMD devices 0.1 to 0.4 mm off the pcb | | PCb substrate to compensate for thermal stressing in a | | Space enviroment. Has any one any ideas or contacts for | | dissolvable pads. this only applies to leadless components | Ro
Electronics Forum | Wed Apr 21 17:11:05 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 proces
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
Electronics Forum | Wed Apr 21 14:38:38 EDT 1999 | Justin Medernach
| 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 proces
Electronics Forum | Wed Apr 14 17:39:20 EDT 1999 | Dave F
| Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? | | I consider "fines" individual unmelted metal spheres that are found in s
Electronics Forum | Thu Apr 15 12:58:59 EDT 1999 | Chrys Shea
| | Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? | | | | I consider "fines" individual unmelted metal spheres that are foun
Electronics Forum | Sat Apr 17 12:00:12 EDT 1999 | John W
| | | | Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? | | | | | | | | I consider "fines" individual unmelted metal spheres t
Electronics Forum | Sun Apr 18 00:26:29 EDT 1999 | Vic Lau
| | | | | Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? | | | | | | | | | | I consider "fines" individual unmelted metal sph
Electronics Forum | Thu Apr 15 15:07:20 EDT 1999 | Mark Charlton
| | | Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? | | | | | | I consider "fines" individual unmelted metal spheres that ar
