Electronics Forum: manufacturing (Page 351 of 637)

Wiper Paper selection (help)

Electronics Forum | Fri Aug 06 17:28:06 EDT 2004 | Steve

My suggestion is that there are alot of suppliers for this type product. Call a couple of distributors and have them send you samples. Make sure you know each manufacturer so that they don't duplicate. Review the performance and price of each one and

Wiper Paper selection (help)

Electronics Forum | Fri Aug 06 21:43:40 EDT 2004 | KEN

In my wiper paper travels I discovered that many different brands are simply "repackaged" from a single manufacturer. Look at fiber size, weave and porosity. In one case two paper were identical, just dyed green. The prices ranged from 26 dollars

Philips CSM84VZ

Electronics Forum | Wed Aug 11 00:57:15 EDT 2004 | vinitverma

Hello, I may be able to help you on CSM84 series. Please write in details the problem that you are facing. Are you able to start the machine? If not, what is the serial no. and year of manufacturing of the machine? What is the message that you get w

cracked capacitors at SMT 1&2

Electronics Forum | Fri Oct 22 11:04:29 EDT 2004 | Simon UK

I have experienced this same problem with CECC Type caps, in all sizes. One cause, which may have not been explored is the component may hav been cracked before you placed it 1 in 300? Hmm..I did this on our products that were showning atleast 5 per

Bump printing with solder paste

Electronics Forum | Thu Aug 19 12:01:26 EDT 2004 | erhard

We want to get a process running to print paste with a thicker plastic stencil with some room left underneath for preassembled components. I know DEK offers these stencils but since we are using an MPM printer they don't want to sell to us stencils f

SMT tact time

Electronics Forum | Wed Sep 08 20:48:36 EDT 2004 | peter016

Hi Rob, I guess the ratio between chipmounter and GSM is very much depending on the chip to ICs ratio. This is product dependent. We use 2 HS50 to 2 GSMII, 5 S20 to 2 GSMII, 3 Sanyos to 2 GSMII, and 2 CP6 to 2 GSMII. Are these ideal ratios ? Lean Ma

Lead Free ...

Electronics Forum | Wed Sep 14 13:09:59 EDT 2005 | EddieW

Well said KEN! Frank, you will not find much out there for free advice on lead-free from anyone besides manufactures who supply equipment and material for lead-free and all they will tell you is to use their stuff cause its the best. The companies

PCBA IC Component rework

Electronics Forum | Fri Sep 24 13:38:16 EDT 2004 | Nick Prince

The re-use of any component has commercial implications as weel. If you check the data sheet for the component in question you will find the reflow profile, usually there will be a "Max No of Reflows". I have never seen this number higher than 2. If

Looking for Filled via -- Embedded within pad - criteria

Electronics Forum | Thu Sep 02 15:51:15 EDT 2004 | cburress

All: IPC does not directly state any criteria for physical characteristics of what a filled via should look like when embedded within a surface mount component's pad. I am using several of these in my design, and have received PCBs that exhibi

MLCC crack detection

Electronics Forum | Fri Sep 03 11:45:15 EDT 2004 | rlackey

Hi Ken, I know this doesn't help in the immediate timescale, but isn't avoidance the best form? can you trace the cracking to a process issue (Solder profile, shock damage, handling damage, probe/ATE damage)or a chip cap manufacturing fault? I can'


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