Electronics Forum | Wed Oct 11 16:24:35 EDT 2000 | John Thorup
Hello Antonio ASPECT RATIO = the ratio of one dimension to another as in the ratio of the thickness of a stencil to the width of the aperture. For instance, a 10 mil aperture in a 5 mil stencil will have an aspect ratio of 2. This is aperture width
Electronics Forum | Mon Oct 09 10:37:25 EDT 2000 | DL
John, I hope your figures or numbers are part of your SPC process. Our management loves this stuff. I think the production line, world class or not would reflect the attitude of the people working on it(keep that between you and me) management does
Electronics Forum | Fri Oct 06 09:16:10 EDT 2000 | Kev Head
All, We are planning to place a daughter board that has a surface mount relay reflowed onto it already. The reason for doing this is a bit complicated and not worth noting here. The process would consist of first placing the SMT relays onto a mult
Electronics Forum | Thu Oct 12 11:08:20 EDT 2000 | Fraser
Dave, Why on earth would you want to use a stepped glue stencil?. If you print slightly off contact the hight of your glue deposition will be roughly half the width of your adhesive aperture width so if you want a 10mil high deposit use a 20 mil ape
Electronics Forum | Tue Oct 03 16:56:32 EDT 2000 | JAX
Not sure if I agree with your justification but I might need to read it a few more times to figure it out. I agree that aquiring a dispensing machine is is a good purchase. Maybe you should let him in on the material savings. How many adhesive stenci
Electronics Forum | Tue Sep 26 15:48:32 EDT 2000 | Dave Hulbert
I'm a bit confused about reading IPC-275 (I know I should have IPC-2221/2222) but I'm sure they are similar. Anyway, I am doing a: Military, less than 100V, non-conformal coated PCB, External Etch Sec 5.3.1.4 Edge Spacing.. (Pg 61) says use Tabl
Electronics Forum | Mon Sep 25 17:42:40 EDT 2000 | Steve Thomas
Back in October a post went up re: the fact that a solder manufacturer quit recycling paste, and the responses then weren't encouraging, so I'm gonna stir it up again. I haven't figured out what we're going to do with ours yet and it's piling up. N
Electronics Forum | Sat Sep 30 23:57:11 EDT 2000 | DL
I have to agree with Geo. I've a number of years exp. with Quad Machines and currently waiting for the Installation of the APS-1H so I can be trained. However, the quad techs take no prisoners when it comes to chasing down bugs. The Meridian is Quads
Electronics Forum | Wed Sep 20 19:43:35 EDT 2000 | David Harper
We have the very same problem.. In our next job our assemblers will be placing 2 million PTH LEDs. Fortunately we get all out LED's from the same manufacturer and hope they come in bags. If not we gotta cut them off the tape.. and well... that just m
Electronics Forum | Wed Sep 20 19:44:04 EDT 2000 | David Harper
We have the very same problem.. In our next job our assemblers will be placing 2 million PTH LEDs. Fortunately we get all out LED's from the same manufacturer and hope they come in bags. If not we gotta cut them off the tape.. and well... that just m
