Electronics Forum: smt (Page 592 of 929)

Re: SMT assembly on Punch/return boards

Electronics Forum | Fri May 19 10:54:28 EDT 2000 | Travis Slaughter

Did the cow tag thing too hu? � inch yea, 50 in a panel sounds right did the rows happen to be offset (looking a little like a honeycomb)? We didn�t have a great deal of trouble with the boards falling out at most it was a minor inconvenience. Per

Re: Operating a SMT system

Electronics Forum | Wed May 17 19:09:42 EDT 2000 | JAX

MoonMan, Although I did make an obscure criticism about your "on the fence" association with SMTNET it was simply made to catch your attention. I know you have done and, most likely, still want to do consulting work. I figured you would make an ambig

Re: Operating a SMT system

Electronics Forum | Sat May 20 15:54:47 EDT 2000 | Earl Moon

Nancy, After all our time together you grew to know me too well. But damn, just when I thought I was out of this thing, you have to pull me back in again. See you did learn a lot and now you've given something back very valuable, not to me (I mean,

Re: SMT handplacements

Electronics Forum | Tue May 16 06:00:47 EDT 2000 | Wolfgang Busko

Do you have influence on the design process ? Avoid components you are not able to assemble in certain $-limits. A way to put delicate parts on the pcb that your P�n�P isn�t able to place is to add an SMD-manipulator used for manual assembly between

Re: Stencil Cleaner

Electronics Forum | Fri May 12 13:12:47 EDT 2000 | Bill Schreiber

There are several published papers on the Smart Sonic Web Site regarding the advantages and disadvantages of using a stencil cleaner. I recommend the papers by Richard Clouthier "Improving Screen Print Yields" and "Selecting SMT Stencil Cleaning Me

Re: 0201Technology (

Electronics Forum | Mon May 22 10:43:05 EDT 2000 | TMV

The SMT LAB at Universal Instruments Corp. has presented a paper entitled "Process parameters optimization for mass reflow of 02\01 components" at APEX 2000. If you weren't able to attend, an excerpt is available at www.UIC.com, under the AUTOMATION

Re: Where's Earl Moon ?

Electronics Forum | Wed May 17 14:01:46 EDT 2000 | Earl Moon

Steve, Great to see from you again, as so very many times before? New folks always welcome on the forum. You and Dave are management's big hope for success to attract more advertising. Can't wait to see what you have to ask Mr. Harper, if that happe

soldering books

Electronics Forum | Fri May 05 18:51:59 EDT 2000 | Steve Thomas

Looking for the best choice in books on soldering processes, primarily reflow but wave is going to be with us for a while so..... If you had to buy one today, which would you start with? Here's the list I gleened from the archives: Coombs, CF, "Pr

Re: SMT Placment Reliability

Electronics Forum | Fri May 05 13:42:28 EDT 2000 | JAX

Charles, This theory normally occurs when the machines being used have a CAM style pick-up mechanism( ex. FUJI-CP series). One of the many things that determine cam speed is how many parts out of a single feeder will be picked( It has to build up sp

Re: SMT Placment Reliability

Electronics Forum | Fri May 05 20:07:26 EDT 2000 | TNT

Charles, The percentage of misplaced components can increase with the number of components, because as you increase the number of placements the travel of the PCB,for a fixed turret machine, increases in table speed and distance. The slower the trav


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