Electronics Forum | Fri Jan 08 04:58:07 EST 1999 | Scott B
Can anyone direct me to any literature (preferably on-line) relating to current SMT packaging usage worldwide and any trends therein. Thanks... Scott
Electronics Forum | Tue Sep 16 13:44:38 EDT 2003 | Duane
Below 40 microinches = Bad Solderability With pitches getting smaller and smaller flatness becomes more of an issue, but it's not to be achieved by blowing ALL solder off the pads.
Electronics Forum | Tue Sep 16 15:09:23 EDT 2003 | russ
Maybe trying to get a flatter HASL PCB. But i am unaware of the "entire industry" trying to go thinner. Russ
Electronics Forum | Tue Sep 16 15:33:41 EDT 2003 | doug philbrick
Fire them now! I don't know if your a CM or not but in that world if we do not follow our customers instruction and specs exactly not only would we be fired we could get sued!
Electronics Forum | Tue Sep 16 10:58:03 EDT 2003 | swagner
I am currently having a discussion with a pcb supplier about inadequate hasl thickness, we are measuring below 40 microinches of hasl when our spec calls for 100 microinches as the minimum. Our supplier came back with the statement the entire indust
Electronics Forum | Wed Sep 17 10:49:48 EDT 2003 | davef
We agree. Colin Lea showed that HASL less than 2 microns [80 uin] thick has limited shelf life and that shelf life gets worse as the HASL gets thinner. Unless you do not need shelf life, consider sticking with 100 to 500 uin. There is nothing wrong
Electronics Forum | Tue Sep 16 15:47:17 EDT 2003 | davef
First and most important, it doesn't matter dip who is down-wind of the rendering plant. The customer said, "I want bla bla bla." The supplier said, "I want to supply to the customer's order for bla bla bla and will deliver to that specification on
Electronics Forum | Fri Jan 08 10:58:31 EST 1999 | Dave F
| Can anyone direct me to any literature (preferably on-line) relating to current SMT packaging usage worldwide and any trends therein. Thanks... Scott | Scott: Check "SMT" Magazine November 1998, page 92. TTYL Dave F
Electronics Forum | Wed May 23 13:34:06 EDT 2001 | Mark Smithers
The trend of the smaller PCB and devices has been occurring for many years now. However, recently, we are seeing signs that a segment of the market is returning to larger board sizes....30" x 30" and larger. Does anyone have good sources for data a
Electronics Forum | Wed May 23 13:36:52 EDT 2001 | Mark Smithers
The trend of the smaller PCB and devices has been occurring for many years now. However, recently, we are seeing signs that a segment of the market is returning to larger board sizes....30" x 30" and larger. Does anyone have good sources for data a
.gif)
.gif)
