Electronics Forum: forum (Page 6506 of 7890)

Re: MicroBGA printing problem

Electronics Forum | Mon Sep 20 17:26:22 EDT 1999 | Earl Moon

| I've had some trouble pasting a test board for a MicroBGA trial. Most of the paste remains in the stencil apertures. | The stencil is 6 mil thick, laser cut and electo-polished. | The apertures are 12 mil in diameter with 20 mil pitch. | We are usi

Re: MicroBGA printing problem

Electronics Forum | Mon Sep 20 17:46:21 EDT 1999 | Dave F

| I've had some trouble pasting a test board for a MicroBGA trial. Most of the paste remains in the stencil apertures. | The stencil is 6 mil thick, laser cut and electo-polished. | The apertures are 12 mil in diameter with 20 mil pitch. | We are usi

Re: MicroBGA printing problem

Electronics Forum | Tue Sep 21 12:10:23 EDT 1999 | Mario

| I've had some trouble pasting a test board for a MicroBGA trial. Most of the paste remains in the stencil apertures. | The stencil is 6 mil thick, laser cut and electo-polished. | The apertures are 12 mil in diameter with 20 mil pitch. | We are usi

water soluable or no clean flux?

Electronics Forum | Mon Sep 20 08:21:52 EDT 1999 | Mohammed saad

Hi all, We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we need your advice. We are producing VGA cards and mother boards for PC's all components to be wave soldered are TH, the SMD is done

Re: Help with D^2 Pak on MV100 Chipshooter

Electronics Forum | Mon Sep 20 14:06:02 EDT 1999 | Claude Couture

| Can anyone help with programming a D^2 Pak on a Panasert MV100. I'm having trouble setting up the parts data and teach the component. What should the Up, Down, Left, Right, Component Code, Lead Details, and Cut Lead Settings be? | A link to the pac

Re: Help with D^2 Pak on MV100 Chipshooter

Electronics Forum | Wed Sep 22 21:07:00 EDT 1999 | JAX

| Can anyone help with programming a D^2 Pak on a Panasert MV100. I'm having trouble setting up the parts data and teach the component. What should the Up, Down, Left, Right, Component Code, Lead Details, and Cut Lead Settings be? | A link to the pac

Re: screen printer x axis

Electronics Forum | Mon Sep 20 11:53:41 EDT 1999 | Scott S. Snider

| HI everyone, | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 and .001

Re: screen printer x axis

Electronics Forum | Thu Sep 23 21:51:27 EDT 1999 | harry

| | HI everyone, | | | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 an

Re: Siemens S20 Hang Issue

Electronics Forum | Fri Sep 17 11:03:46 EDT 1999 | Scott S. Snider

| Hi All, | | I am running 19 Siemens S20 Machine here. I found out that the Siemens Machine once a while hangs. The remedy is reboot the machine. I wonder what is the machine hang rate for other S20 machine else where. | | Can anyone give me any s

Re: Soldering to Gold

Electronics Forum | Thu Sep 16 18:07:16 EDT 1999 | Earl Moon

| We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a reco


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