11226 parts results

Electronics Forum: parts (Page 926 of 1123)

Where's the rush?

Electronics Forum | Thu Feb 23 14:15:34 EST 2006 | billyd

Has anyone experienced any type of rush by customers to go Pb free? I mean, I see a huge rush for all the CM's to get their ducks in a row, but I haven't seen any push from any other part of the industry to get moving on it. We do a few lead free ite

Where's the rush?

Electronics Forum | Thu Feb 23 14:48:59 EST 2006 | russ

Our current customers are getting all over us to make sure that "we are ready". When we inform that we are and ask them how they are doing in crossing their B.O.M.s to pbfree we get these blank stares. It's almost becoming comical!! it's like every

stepped stencils

Electronics Forum | Fri Feb 24 13:39:35 EST 2006 | Chunks

I agree with Jerry. A 7 mil stencil should work just fine for 25 mil pitch parts and 0.050 pitch BGA's. I too go 6 mil, but whith proper screen printing, you can 7 mil. You can always do 5 ot 10% reductions if needed. Use the homeplate design on

Long term effect of lead free solder on plating

Electronics Forum | Mon Feb 27 09:09:36 EST 2006 | davef

Silver on your copper or brass part is a solderability protection. The silver diffuses into the solder and you solder to the base metal, either the copper or brass in your case. Soldering to copper is well known. The issues are soldering to brass

Alternate Solders/methods of flex attachment to pcb's

Electronics Forum | Tue Mar 21 19:34:32 EST 2006 | Tom Smykowski

Omar: I dealt with this so called "hot bar" process also, and you're right; it's neither reliable nor repeatable. The goal was to attach a flex LCD display to another flex circuit. The flex LCD was constructed of resin and conductive silver particl

Typical SMT Machine changeover times?

Electronics Forum | Wed Mar 29 11:42:20 EST 2006 | Frank

Since you are a HM/LV facility take a look at the feeder design. I noticed that the MyData feeders (that I have seen) peel back a lot of pockets before the pick, so when you change part numbers on the feeder there is a larger waste of components. O

Typical SMT Machine changeover times?

Electronics Forum | Wed Mar 29 18:20:07 EST 2006 | LD

We are also a high mix/low volume OEM and are running Samsung CP45's with quick change carts on both sides of the machine. We currently average 12 minutes of internal changeover time per run with an average of 17 changeovers/day for 2 shifts. We ty

LASER SOLDERING

Electronics Forum | Tue Apr 11 08:29:31 EDT 2006 | mapell

Hi Dougs I worked a bit a few years ago with a diode type soldering laser. I found laser soldering very application specific so make sure you send samples off to differnt companies to see actual results. You can get good results with a laser system

Siemens S15/F3 skipping component

Electronics Forum | Tue Apr 11 15:37:31 EDT 2006 | stockley

(Hey Cal how you doing?) I can't resist this. You can sort of do what you're hoping for but you have to be very careful. Let the component run out and let the machine get as far as it's going to go. Then go to "Software Options", "Test commands" then

CP4 of death

Electronics Forum | Sat Apr 15 19:11:53 EDT 2006 | daxman

If I've been clear, the parts become offset as the XY table moves around, without fiducial correction. It's when it does a fiducial correction that the placement is alright. If the placement is excellent, and I just zip the table around...load posit

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