Electronics Forum | Thu Feb 24 12:08:15 EST 2005 | siverts
Checked the condition of your nozzles? Vacuum ok? Dummy part picked from the same feeder position? Dummy part picked from the very same feeder? How often does this problem occur? How many dummys did you pick for comparison? Sometimes a feeder calibr
Electronics Forum | Fri Feb 25 10:52:59 EST 2005 | russ
Would these be the parts that have just pads located on the bottom of the part? If so, we place these every day in decent volumes and have never had any manufacturing problems with them. I cannot comment on the reliability since we are a contract M
Electronics Forum | Mon Feb 28 16:47:26 EST 2005 | jdengler
John, No vacuum. I use tape to hold the flex flat. Panels are hard. Some flexes I do 3 up some 1 up. Larger components that I can get a repeatable location of the flex are 3 up. 0805 and smaller are 1 up always. I talked to a flex house once a
Electronics Forum | Mon Feb 28 13:38:40 EST 2005 | pr
I am using this same flux and haven't had too many problems. I think Russ is steering you right on your wave flow and I would also check the fluxer performance to make sure it's getting to the top of your board. Are you sure these aren't sunken joint
Electronics Forum | Thu Mar 03 11:49:23 EST 2005 | Rob
Doesn't that depend on your company's culture & management style? We (and I feel slightly dirty using this word)empowered our end of line inspection/touch up people & trained them to know what is good or bad - so issues can be immediately fed back,
Electronics Forum | Thu Mar 03 16:33:24 EST 2005 | pjc
Revision D has over 730 new and updated illustrations of acceptability criteria and has been critically reviewed for clarity and accuracy. The document synchronizes to the requirements expressed in other industry consensus documents and is used with
Electronics Forum | Fri Mar 04 11:00:37 EST 2005 | mrduckmann2000
Anybody have any ideas on the proper way to screen solder mask onto a PCB? I am going to cover SMT parts that were soldered to the btm side of the PCB, now I have to mask them in order to run this animal through the wave solder process. I know it w
Electronics Forum | Thu Mar 10 12:19:17 EST 2005 | rlackey
Borrow a large hungry dog (or wolf if local wildlife permits) & chain it up in the corner of the office when the salesman comes in. Then look over at it repeatedly whilst talking about your requirements. Feel free to leave him alone for a while...
Electronics Forum | Fri Mar 11 11:58:55 EST 2005 | pjc
About $60K for a good bench-top unit and $120K for a good in-line. AOI is justified if you are spending a lot of time ($$) visually inspecting your boards. AOI machine is faster and more reliable than a human for this task. Plus, visual inspectors d
Electronics Forum | Fri Mar 18 14:27:29 EST 2005 | pmd
Hold on, MyData can place no component and not detect error if the minimum and maximinum settings in the centering phase are within the mesurement of the tool it'self. Especially if the levels are down between the jaws. For insurance make sure the to
