Electronics Forum: much (Page 373 of 627)

Problems with Ceramic Capacitor SMD In-Circuit Test

Electronics Forum | Wed May 05 20:22:33 EDT 1999 | ADRIANO FERNANDES

I would like to know if someone aleady have problems with Ceramic Capacitors SMD in In-Circuit Test (see below)and how did you solve this problems ? PROBLEMS 1 - Only one kind of capacitor (2n2F), of all capacitors on board, sometimes are open, and

Re: Problems with Ceramic Capacitor SMD In-Circuit Test

Electronics Forum | Fri May 07 13:25:00 EDT 1999 | anirooth

| I would like to know if someone aleady have problems with Ceramic Capacitors SMD in In-Circuit Test (see below)and how did you solve this problems ? | | PROBLEMS | 1 - Only one kind of capacitor (2n2F), of all capacitors on board, sometimes are o

Re: Problems with Ceramic Capacitor SMD In-Circuit Test

Electronics Forum | Fri May 07 15:08:51 EDT 1999 | ANIROOTH

| | I would like to know if someone aleady have problems with Ceramic Capacitors SMD in In-Circuit Test (see below)and how did you solve this problems ? | | | | PROBLEMS | | 1 - Only one kind of capacitor (2n2F), of all capacitors on board, sometim

Re: Wave Soldering Temperature Profile

Electronics Forum | Wed May 05 13:15:43 EDT 1999 | Boca

| Can anyone pls email me a typical temperature profile for wave soldering process. | | Thank you vey much. | | rdgs... | Typical depends on the processes you're developing. Key factors in my experience are flux type and requirements, component

Re: Proto BGA Equipment

Electronics Forum | Wed May 05 09:59:44 EDT 1999 | Erick Russell

Several of our customers use our Summit series equipment for this purpose. Our rework stations are used in proto labs to prove manufacturability. Consider it a low volume, semiautomatic pick and place and selective soldering reflow oven. Some low

Re: Hot Air Nife

Electronics Forum | Wed Apr 28 16:49:47 EDT 1999 | Tony A

| | Anyone using hot air nife for wave soldering process. | | Does it work? | | Does it really eliminate solder bridging and does it create any other problems? | | | | any feed back will be much appriciated. | | | | Thanks | | | | Tony A | | |

BGA Voiding Problem

Electronics Forum | Fri Apr 23 16:19:17 EDT 1999 | Todd

We are just starting to manufacture a PCB with a .039" fine-line PBGA. We are currently seeing voids, mainly in the center, that are as much as 45%. We also intermittently see the corner balls of the PBGA smaller than the center balls. We are using a

Re: WAVE SOLDERING and Gluing 0603 packages

Electronics Forum | Sat Apr 24 04:41:56 EDT 1999 | Murray Pulman

Dear C.K We are routinely wave soldering 0603 and sot23 on subcontract, hence we get what we are given!!. Being UK based we use a Blundell cms 400 dual wave soldering machine (made in Coventry), Tecan Stencils and Loctite 3612 adhesive. You must k

Re: Cleaning procedures for Entek-Plus Cu-106A

Electronics Forum | Wed Apr 21 20:01:00 EDT 1999 | Dave F

Earl said, in essence: | Justin is absolutely right ... | | Again, Entek is not much more than a flux coating ... | | Metallic coatings protect best, as we all know - especially those electroplated. Those coatings chemical come in next to no coati

Re: Low-temperature, lead-free solders

Electronics Forum | Thu Apr 22 16:07:36 EDT 1999 | Rick

| | Do solders exist that are both lead-free and low-temperature (e.g. 100-170 Celsius range)? If so, who supplies these materials? Any websites or contact information would be most helpful. | | | | Also, I am not an expert on soldering, so any


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