Electronics Forum: offset in spi (Page 1 of 3)

defects in pcb manufacturing

Electronics Forum | Wed Oct 28 04:02:10 EDT 2009 | lococost

solderresist has a big offset?

IC in Stick

Electronics Forum | Sun Apr 21 11:59:07 EDT 2002 | martino

i don't know the extra cost associated with buying the comps on reels. But my suggestion would be to calculate the how much time is been wasted 'fiddling' about with these inferior tubes, and then offset this with the extra cost of been supplied with

Component Loss in CP643

Electronics Forum | Mon Oct 03 12:17:18 EDT 2005 | jdengler

Another problem I have seen on CP's is mixing suppliers on the Anti-Marking Illumination Disks. Some after market suppliers disks do not reflect the light the same as Fuji's disks. It is nearly impossible to get the lighting level good enough for r

Manufacturing in China, Revisited

Electronics Forum | Tue Oct 19 22:51:07 EDT 2004 | KEN

I feel it is less pressure from consumers and more from stock holder increased demands for dividends. Every quaters end our publicly traded customers go bezerk on increased orders to show increased finished goods and less component inventory. All t

BGA inspection in mass production

Electronics Forum | Sat Nov 23 08:05:20 EST 2013 | emeto

Hi, I would check the thing in the following order. 1. Check paste - SPI is the best way. If you don't get the right deposit there is no wonder you have issues. 2. Check reflow profile - tweak it to the point of perfection for the board you have. 3

asymmetrical element in Yamaha VIOS

Electronics Forum | Fri Jun 19 06:16:14 EDT 2020 | vinitverma

You can enter Centre Offset X and Y in Component Info of VIOS to change the pickup centre. That will not change the recognition centre.

Solder Paste Volume measure in SPI

Electronics Forum | Wed Apr 11 20:58:12 EDT 2018 | jacobidiego

YES to the first question in some points of the board. Bulky, to the second question when it is not in short. What you say about the PAD height, helped me to understand why the SPI shows weird values for other measurements. I am currently doing test

Solder Paste Volume measure in SPI

Electronics Forum | Mon Mar 26 16:33:54 EDT 2018 | jacobidiego

I realize that I wrote wrong. Sry The stencil of 0,1mm of thickness is printing 45% more volume. I know this becouse the SPI is setup with the stencil gerbers and the messurements have a median of 145% of volume. what do you mean with excesive sold

Solder Paste Volume measure in SPI

Electronics Forum | Wed Apr 11 09:51:26 EDT 2018 | emeto

Diego, the first question you have to answer is "Is the paste volume too much in real?" How does your paste look? To check that, I would say you measure bare board with your SPI and see if your SMT pads show you zero, or may be not? If your value fo

Solder Paste Volume measure in SPI

Electronics Forum | Mon Mar 26 09:32:00 EDT 2018 | cyber_wolf

Usually this is caused by too much solder mask.

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