Electronics Forum | Thu Oct 14 20:42:07 EDT 1999 | Jeff Ferry
Grace, As deifned in IPC 7721 Procedure 3.2 Bow and Twist Repair "Bow and twist after soldering shall not exceed 1.5% for through hole PC boards and .75% for surface mount PC boards. The bow and twist shall not be sufficient to cause difficulties d
Electronics Forum | Thu Sep 09 15:40:36 EDT 1999 | Doug Nebel
| We are currently quoting several vendors on the through hole portion of a new mixed technology production line. Unfortunately, I have not been able to find much information about NEA's cabaility, quality, or service. Any comments or references w
Electronics Forum | Wed Aug 25 19:31:22 EDT 1999 | Dave F
| JUST WANDERING IF ANYONE IS PRINTING ADHESIVE ON THE BOTTOM SIDE OF BOARD WITH THROUGH HOLE COMPONENTS ALREADY PLACED. I'VE BEEN TOLD IT IS POSSIBLE BUT WANT TO LOOK INTO THIS PROCESS IN DEPTH. | Chad: You don't need to YELL!!! Anyhow, yes we ha
Electronics Forum | Thu Jul 22 05:00:45 EDT 1999 | George Verboven
| I have pcb's in which i am experiencing warping. | the boards are 12.8125" on a diagonal measurement. | they are out approximatley .010". | the boards are combination thru-hole,smt, they also have 3ounce copper.what is acceptable,and what is the pr
Electronics Forum | Mon Feb 01 16:40:45 EST 1999 | Dave Waddick
I have a product using high temperature solder to connect terminal pins to a PCB. The board is single sided copper, no plaiting. The solder is 95% tin 5 % silver. The flux is low activity rosin. The product is a subassembly. When the product is
Electronics Forum | Wed Jul 29 04:03:15 EDT 1998 | Bob Willis
The Reflow Soldering Interactive Test was well received in the industry with over 200 engineers testing their process knowledge. Now its time to take the Wave Soldering challenge and test you knowledge on soldering through hole and surface mount. Bot
Electronics Forum | Tue Jun 30 18:40:07 EDT 1998 | Earl Moon
| I would be very grateful if someone could provide me with recent figures (schemes)of | 1. pin through hole assembly | 2. hybrid circuit | 3. surface mount technology. | Or could anyone tell me where I can find such information? | Thanks a lot. | Ma
Electronics Forum | Thu Jun 25 14:32:14 EDT 1998 | Alon
| | | | Is anyone aware of any papers/publications dealing with the topic of selective soldering of through-hole parts on SMT pcb's..? | | | I would also be interested in a good reference book dealing with wave soldering. | | | Contact me if you hav
Electronics Forum | Thu Apr 09 18:36:52 EDT 1998 | Steve Gregory
| Has anybody heard of a shield to shield the cutter from | flying leads during hand cutting of through hole components. | If it collected the leads also that would be helpful. | I am thinking of plexiglass or something that the board | could be plac
Electronics Forum | Thu Apr 09 18:02:03 EDT 1998 | Ron Beasley
| Has anybody heard of a shield to shield the cutter from | flying leads during hand cutting of through hole components. | If it collected the leads also that would be helpful. | I am thinking of plexiglass or something that the board | could be plac
