Electronics Forum: electronic assembly (Page 491 of 598)

Re: Losing parts in wave

Electronics Forum | Wed Oct 06 11:41:50 EDT 1999 | Bill Haynes

| | I hope that someone can help me with my problem! I am experiencing a lot of glued on parts falling off in the wave solder machine. A little information about my process: 1)We use Loctite 3609 glue that is used up long before its shelf life 2)Ou

Re: Cost per placement measure

Electronics Forum | Tue Oct 05 01:22:46 EDT 1999 | Karlin

| I am working on trying to define a cost per placement measure in our SMT assembly operations. | | Does anyone know where I might find a published industry average that we may compare to? | | I�ve heard it stated that an industry average is less t

Re: Digital Camera

Electronics Forum | Tue Aug 24 15:30:51 EDT 1999 | John Thorup

| | This is out of the normal scope of this site but� | | | | I am in search of a Digital Camera for use with documentation instructions. What would be the Minimum Resolution that I should require? I will need details of assemblies such as Compone

Re: Bare Copper Pad Reflow Soldering

Electronics Forum | Fri Jul 30 16:02:49 EDT 1999 | Earl Moon

| | I received a request from customer to assemble ceramic substrate (alumina oxide)that printed with a low temperature Copper thick film conductor (the overglaze layer is polymer). The Copper pads are exposed without any coating. | | This ceramic su

Re: Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Sun Jul 25 08:54:37 EDT 1999 | Tom Gervascio

| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after

Re: Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Fri Jul 30 09:43:44 EDT 1999 | C.K.

| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after

Re: SMD Inspection and Touch-up

Electronics Forum | Fri Jul 23 13:09:48 EDT 1999 | Steve

| There is a practise within the industry of an Inspector inspecting a board, and that same Inspector performing touch-up. My opinion is that the Inspection and Touch-up operations should be separate functions whereby the Inspector is not performing

Re: pitch

Electronics Forum | Mon Jun 07 13:51:48 EDT 1999 | Dave F

| | We are changing from through-hole to SMT, wondering what pitch requirements would an 8 pin SOAC require for pick and place? We think that this would be our finest pitch part. | | | | | | | John: Never heard of an "SOAC." SO packages are 50

Re: pitch

Electronics Forum | Mon Jun 07 20:12:42 EDT 1999 | John Martell

Thanks for the advice, I'll check out that site. | | | We are changing from through-hole to SMT, wondering what pitch requirements would an 8 pin SOAC require for pick and place? We think that this would be our finest pitch part. | | | | | | | |

Re: Heatsinks for surface mount devices - adhesive alternative!

Electronics Forum | Tue May 25 10:56:12 EDT 1999 | John Thorup

| | | Can anyone steer me towards a supplier of heatsinks suitable for use on a PQFP 160. Before you shoot me down in flames, I know that I am not going to get much heat away from the die because of the plastic but the application is such that the bo


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