Electronics Forum: defect (Page 191 of 227)

Re: Solder on gold finger

Electronics Forum | Tue Aug 18 12:02:59 EDT 1998 | zambri

| Hi, | Need some advice on how to eliminate or reduce the solder on finger that we are having right now. So far what we understand is that 90% of the problem is due to the reflow process where solder traps in vias causing explosion when subj

Re: Solder on gold finger

Electronics Forum | Mon Jul 27 21:10:10 EDT 1998 | D.Lange

| Hi, | Need some advice on how to eliminate or reduce the solder on finger that we are having right now. So far what we understand is that 90% of the problem is due to the reflow process where solder traps in vias causing explosion when subj

Re: Press Fit vs. Through Hole Joint Quality

Electronics Forum | Wed Jul 15 15:35:21 EDT 1998 | Michael Fogel

Hello Mark, Here in ECI, because the nature of our products, are using the method of press fit connectors in big numbers and although we have SMT components (around 200 per board) as well as T/H components we still preferred to use press fit because

Re: Capacitor Wave Soldering Woes

Electronics Forum | Wed Jun 24 11:59:31 EDT 1998 | Brian Conner

| What is your current solder pot temperature? Whatever that temperature is, | has it been verified/calibrated? | What kind of flux is being used? No-clean, OA, RMA? | How is the flux being applied to the PCB? | Is this problem occuring on ALL nega

Re: BGA In-circuit Failure Analysis

Electronics Forum | Mon Jun 08 11:39:28 EDT 1998 | Earl Moon

| How do I mechanically/visually inspect BGA devices when they are soldered to a PCB for possible solder, or other, defects as a first step before part removal and further analysis? I have had board failures due to poor soldering--I think? I can pr

Re: Help me increase my first pass yields

Electronics Forum | Fri Jun 05 13:06:14 EDT 1998 | Steve Schrader

| If you could measure and chart 3 variables in my process, what would they be? | The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. They are on scored panels that measure

Re: CCGA

Electronics Forum | Sat May 30 18:09:17 EDT 1998 | Earl Moon

| Got handed an assignment for which I'm not totally qualified. Don't expect this forum to had me all the answers. Some answers are obvious as the device types are fairly self explanatory. | As everyone knows, IBM had problems with their ceramic BGA

Re: CCGA

Electronics Forum | Mon Jun 01 20:37:54 EDT 1998 | D.Lange

| | Got handed an assignment for which I'm not totally qualified. Don't expect this forum to had me all the answers. Some answers are obvious as the device types are fairly self explanatory. | | As everyone knows, IBM had problems with their ceramic

Re: Update on Rotary Chip Waves

Electronics Forum | Fri May 29 22:03:49 EDT 1998 | Tom Gervascio

| | Last week I posted a message on rotary chip waves that stated that the drive shaft had a protective boot around a u-joint that degraded and exposed the joint. | | Someone from the manufacturer read it and contacted me. He told me the problem has

Re: Update on Rotary Chip Waves

Electronics Forum | Tue Jun 09 00:53:06 EDT 1998 | Dave M

| | | Last week I posted a message on rotary chip waves that stated that the drive shaft had a protective boot around a u-joint that degraded and exposed the joint. | | | Someone from the manufacturer read it and contacted me. He told me the problem


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