Electronics Forum | Wed Nov 24 08:44:00 EST 1999 | Chris Jackson
I have a PCB that I am looking to do selective soldering. I am looking at several systems (IE Seho, Pillarhouse, Premier Tool Works, wave pallets). The board is mixed SMT/PTH, but only has SMT on topside. It has 4 PTH(2 leads ea)components (.030 lea
Electronics Forum | Fri Nov 19 16:36:15 EST 1999 | JAX
Thank you for the info but when I say anchor I am asking if it uses only one ball (pin one). I believe you are saying it uses a predefined number from every corner to map out the part according to the description given inside the GF. If this is true,
Electronics Forum | Wed Nov 17 11:36:16 EST 1999 | JAX
If this is going to be the beginning of a lucrative and fast growing company you probably want to go with Fuji ( CP series ) , it's by far the fastest and longest lasting. If money is a big issue at this time and you want to get the biggest bang for
Electronics Forum | Mon Nov 15 12:27:33 EST 1999 | Wolfgang Busko
Hello everybody, engeneering came up with following problem: Considering worst case the get a temperature at a component (Resistor 0805) of 109�C and 99�C at the solderjoints. As a rule of thump I said that the max. suitable temperature for the solde
Electronics Forum | Sun Nov 14 02:29:59 EST 1999 | Hany A. Salam
In our facility we face a lot of power failures due to the to the city electricity network problems.So, it has hppend many times to loose some PCA's inside the reflow oven. Of course it costs a big money tobuy a UPS for a reflow oven. One suggested
Electronics Forum | Thu Nov 04 14:13:34 EST 1999 | John Thorup
Hi Tim It sort of depends on the solder alloy being used and the particular assemblies being soldered. If you are using the usual 63/37 alloy I would consider 500 to be a bit warm unless the assembly required it. Some alloys would require a higher
Electronics Forum | Wed Nov 03 22:14:03 EST 1999 | Dave F
Anthony: John's points are well taken. All SMT components float to some degree. Fly shit floats more than multi-lead. Well duh!!! I know of no formula. The most cogent discussion is in THE BOOK (Klein Wassink's "Soldering In Electronics), but i
Electronics Forum | Sat Nov 06 14:58:45 EST 1999 | Gary Moravchik
Assuming you are using Sn63/Pb37 solder paste, have you tried using a lower temp melting point solder paste for the second pass? For example, use 63/37 for first pass and a Bi58 compound solder paste for the second pass. If I recall, Bi58's melting
Electronics Forum | Thu Oct 28 12:02:13 EDT 1999 | John Thorup
Automation and low cost is an oxymoron sort of like jumbo shrimp. Automation will set you back $20,000-100,000. Optical comparitors aren't cheap either. Low cost means good eyeballs, a "golden" sample board and up-to-date documentation. Also low c
Electronics Forum | Wed Oct 27 16:58:19 EDT 1999 | hany a. salam
Hello there: Currently we are building our own facility for producing electronic assemblies. I had a long discussion with my colleagues concerning the ESD mats surrounding the sensitive components areas such as the pick & place machine
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