Electronics Forum | Thu Jan 04 12:51:37 EST 2007 | Board House
Hi Chunks, Starting copper on outer layer with .0007 is 1/2 oz. copper foil. so if starting copper is .0007 and your Board house will plate an additional .0021 mils of copper. which will give you a finished copper weight of .0028 Mils or (2 oz.) Y
Electronics Forum | Thu Oct 27 12:58:33 EDT 2005 | gregp
EIA-481-B Max tape thickness 1.1mm (not including bottom and top cover tapes which can be .1mm max each) Of course a 1.1mm thick piece of steel will be stiffer than a 1.1mm thick lasagna noodle (already cooked). Is the thickness the issue or is it t
Electronics Forum | Mon May 23 16:38:48 EDT 2005 | thaqalain
0 0 0 0 1 0 1 0 0 1 1 1 Please u check sequence of rows,I think above is correct sequence.
Electronics Forum | Mon May 23 11:37:36 EDT 2005 | dougt
AND A B C -------- 0 0 0 1 0 0 0 1 0 1 1 1 C is the result Are you studying for a test?
Electronics Forum | Wed Jul 13 09:07:32 EDT 2005 | russ
The reason for going 1:1 with lead free is that it does not spread out like the pb solders. So 1:1 is really not necessary in my opinion. We go 1:1 anyway on discrete components along with other packages. You always have to make sure that the area
Electronics Forum | Mon Jul 26 13:15:51 EDT 1999 | jseagle
I guess I wasn't too specific. We currently use 1,1,1 for spot cleaning and minimal rework of PCBs. If there is a lot of rework on a PCB we will use water soluble flux and wash it. This may turn out to be our only alternative, but I hate washing a
Electronics Forum | Wed Aug 18 21:04:45 EDT 2004 | davef
Sectioning equipment suppliers: Leco, Struers, Buehler General automatic and manual sectioning methods: IPC-TM-650 2.1.1 and 2.1.1.2
Electronics Forum | Thu Mar 29 21:47:41 EDT 2007 | davef
PCB land to part land ratio - 1:1 Stencil aperture size - 1:1 with PCB land Stencil aperture shape - same as PCB land
Electronics Forum | Mon Mar 24 10:38:33 EDT 2008 | davef
No standard, but common practice is: IPC-TM-650 Test Methods Manual * Method 2.1.1, Microsectioning, Manual Method * Method 2.1.1.2, Microsectioning, Semi or Automatic Technique
Electronics Forum | Sun Dec 13 11:35:59 EST 1998 | Jim Gustin
I suggest that you display questions and responses in a slightly different order. Within any given string of Q's and A's, the topmost displayed item should be the oldest. The most recent item should be at the bottom. In this way, a viewer can easily
