Electronics Forum | Fri Mar 23 23:26:40 EDT 2007 | mika
Hi, We are facing a complete new package type for us in our prototype production. RoHS LGA 36 Land Grid Array with 36 so called pads instead of bumps underneath. It is totatlly flat. This component is only 6.5 x 3.5 x 1.6 mm and we recieved them in a
Electronics Forum | Thu Feb 15 16:58:11 EST 2007 | flipit
Phil, I used to print solder paste on 2" X 2" and 3" X 3" 96% Alumina substrates all the time. I used standard solder printers and stencils. Screens are difficult to use and don't print well. You can use a stencil on a DeHart, CW Price, or AMI Pr
Electronics Forum | Thu Jan 13 20:40:47 EST 2011 | eadthem
properties > settings > troubleshooting > Set hardware acceleration to NONE > apply OK apply OK reboot. without this any attempt to take a screen shot of the program will not save the image (because in a fruitless attempt to speed it up they have pr
Electronics Forum | Wed Jul 02 12:42:58 EDT 2003 | slthomas
Not sure how else to describe this. We've received some boards (1/2" x 3.5" x .0325" board built on panels of 24) with numerous resistors showing separation of the solder from the metallization at the top of the joint. There are 26 0805's on the bo
Electronics Forum | Thu Jun 03 18:11:07 EDT 2004 | Rob
The price was actually $6,372 and it included the following: AP/UP2000 1011859 KIT,GEL-FLEX,AP/UP2000,SYSTEM The kit includes: quantity 12 1011557 BAR,GEL,ASSY quantity 4 1010934 SUPPORT,EDGE,3.31 quantity 4 1010935 SUPPORT,EDGE,4.
Electronics Forum | Tue Oct 05 02:24:58 EDT 2004 | darby
What config are you replacing? ie 1 machine, 2 x 3machine lines, 1 x 2 machine line etc. What do you want to place with it? I can't comment on the Contact machines having never used one. On Samsungs I will say this. For your own benefit consider the
Electronics Forum | Mon Oct 08 23:17:48 EDT 2001 | Brad Arnold
We are trying to produce a PC Card bus assembly with a 672 pin BGA on one side. These pcb's are .015 thick. I believe the ball pitch is .5mm. The pcb's are plated with white tin. The pcb's are in a 1 X 3 array. We had 2 plates with appropriate cutout
Electronics Forum | Sat Mar 24 03:06:55 EDT 2007 | aj
Hi Mika, We came across some difficulties with this type of device a couple of years back . After the proto run we needed to touch up the outside fillets to get stability and product to pass test. ( even though the manf. stated that there is no fill
Electronics Forum | Thu Apr 05 23:27:37 EDT 2007 | mika
to pad on the PCB. The pick & placement as I mentioned before is OK. Now our X-Ray machine cannot see if the joint is firm whitin the PCB-pad and the LGA-pad. So I still don't know if this "gonna work" in a long term...The customers of ours doesn't
Electronics Forum | Sat Apr 21 20:40:23 EDT 2007 | mika
Thanks Darby, I got the point of what you are saying. Never the less, I still don't like when a pcb manufactor change the leads/threads on the pcb whitout mention this to us. In such a critical case! There should always be a close relationship betwee
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