Electronics Forum | Thu Jul 13 10:10:48 EDT 2000 | Todd
Donnie In response to your questions; 1. Flux is Multi-core X32-10M 2. Preheaters temperatures can range based on board density. the goal is to get the top side to 100C before wave. 3. Components can't be placed after wave solder, they are surface m
Electronics Forum | Fri Jul 30 20:27:49 EDT 1999 | Dior
Has anyone done the research on BGA pad size? suppose I have a 0.030" diameter pad as recommended pad size from the spec, what will the minimum pad size allowed? We are laying out a high density board.
Electronics Forum | Sat Jul 31 13:27:42 EDT 1999 | Miguel Mariscal
| Has anyone done the research on BGA pad size? suppose I have a 0.030" diameter pad as recommended pad size from the spec, what will the minimum pad size allowed? We are laying out a high density board. |
Electronics Forum | Thu Oct 07 14:40:31 EDT 1999 | Carol Zhang
I have a board, 4 spacers needed to be soldered on the board first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there will be no p
Electronics Forum | Thu Oct 07 15:39:59 EDT 1999 | Carol Zhang
| I have a board, 4 spacers needed to be soldered on the board | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there will b
Electronics Forum | Thu Aug 28 09:30:20 EDT 2008 | patrickbruneel
Omid, No-clean fluxes need to be used right out of the can without thinning. In the past with RA and RMA fluxes you could adjust or thin them to your desired density because they had plenty of solids up to 30%. No-Clean fluxes have a lot lower solid
Electronics Forum | Wed Aug 02 15:22:10 EDT 2006 | solderiron
Good luck finding used. Ersa is top quality but you pay for it. The IR from Ersa is a medium wavelength thus heating is consistent across the board despite different component densities and colors. PDR does not heat the same and thus you have to be m
Electronics Forum | Wed Jun 08 10:32:27 EDT 2005 | rlackey
We ran an MVT 1820 Supra against a VT-Win-II for around 40K high density boards. One machine was 1/3 of the price of the other, more accurate in production, faster, and could handle larger boards. Guess which won? Fortunately we were able to loo
Electronics Forum | Mon Jul 23 09:02:58 EDT 2001 | nwyatt
Depends on the size, complexity, quantity, and density of the board. Also depends on the CM and lead time required... Choose 2 or 3 good CMs and send them a pcb for analysis and quote...
Electronics Forum | Sat Jul 31 13:35:14 EDT 1999 | Miguel Mariscal
| Has anyone done the research on BGA pad size? suppose I have a 0.030" diameter pad as recommended pad size from the spec, what will the minimum pad size allowed? We are laying out a high density board. | If you know what component your'e going to u
