Electronics Forum: chinese and cutting (Page 6 of 15)

0402 tombstoning and dewetting on QFP256 trade-off

Electronics Forum | Fri Mar 06 10:50:21 EST 2009 | fountain42

Just my opinion but it look's like your doing a great job. i would try another paste. I'm somewhat lucky that we get to use OA's. If your stuck using the no-cleans they are so tempermental. (The nitrogen is making up for the poor paste) Your de-wetti

Counting cut tape and partial reels

Electronics Forum | Thu Mar 18 19:53:29 EDT 2021 | lhd_qa

Hello everyone. I am new to the forum so I am sorry if this has been asked before. Does anyone have any suggestions for counting partial reels and cut tape? We are a distributor and for our ecommerce PDC we keep having quantity issues. Currently, we

Selective soldering pallets and solder balls

Electronics Forum | Wed Dec 04 09:24:52 EST 2002 | jseagle

I have found that preheating the solder pallets prior to use helps cut down on the solder balling. Also, we do not cool the pallets between passes and we use a spray fluxer because a hot pallet will knock down the head on a foam fluxer. We use WS f

Clearance between Through hole and chip component

Electronics Forum | Wed Feb 28 11:43:20 EST 2007 | realchunks

Marcin, Think outside the box. If you are glueing the SMT part down, why not have an aperture cut in your stencil (or recut a stencil) between the SMT part and thru-hole. Wave solder hates SMT glue. This will get rid of your solder short problem

Samsung cp40c replace s.o. and software

Electronics Forum | Wed Nov 29 06:24:49 EST 2017 | sarason

It should be possible to use Ghost to copy the Harddisk nut installing it in another machine. The next trick is to repair the image by cutting the missing bit from another image made on a Virtual Machine. Be careful to use the same version that was o

Your opinion about RoHS and WEEE ?

Electronics Forum | Tue Dec 21 12:08:02 EST 2004 | KEN

1. Its market protectionism for the Europeans. 2. Silver is less toxic than Lead? Wrong! 3. Don't expect your local alloys exchange market to take a position (London Metals Exchange). No other alloy is cheaper than lead. The cost of silver and

Re: Quick Frame and Dek 265GS

Electronics Forum | Wed May 20 12:01:16 EDT 1998 | Chrys

Have you tried the new Accu-Frame from PNC? It tensions on all four sides using an operator-INdependent mechanical scheme. It seems pretty slick. They're failry new, and don't have a frame for the MPM's last time I checked, so I haven't tried it m

Looking for tape and reel machine

Electronics Forum | Tue Feb 24 23:25:03 EST 1998 | Larry

I am looking for a machine to put parts on tape and reel. I am supplied with parts from customers that are on short cut strips for production prototype boards. I would like to put these onto feeders, but they need to be re-taped first. Is there is a

paste release from stencil, and volume calculation

Electronics Forum | Sun Nov 07 10:54:21 EST 1999 | Steve Thomas

We're looking at redesigning our stencils to facilitate better (well, it's pretty much non-existant, so any improvement is a big leap) release from fine pitch apertures. Currently we have perpendicular walled laser cut apertures. We'll be having

Re: screen printer and stencil printer

Electronics Forum | Wed Aug 18 21:10:23 EDT 1999 | se

Hi, I'd like to ask some tips about the merits and shortcomings o of both screen printer and stencil printer. For small quantity and highly mixed usage, which type of printer is suitable to our application? The board


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