Electronics Forum: shape (Page 6 of 94)

Homemade Custom Nozzles

Electronics Forum | Mon Aug 04 17:40:26 EDT 2008 | Frank

Do they make custom shaped nozzles or only standard replacement nozzles?

Ficiduals, Best Practice

Electronics Forum | Tue Sep 06 03:22:58 EDT 2011 | enrad

Just wondering what the best practice for ficiduals, size and shape, or is it depending on the vision system.

Automated Depanel - Tabs or Scores?

Electronics Forum | Wed Jan 22 11:05:25 EST 2020 | dwl

Routing is great for odd shaped PCBs that don't lend themselves to v-scoring. changing from one shape PCB to another is easy. The down sides are you may require custom support tooling and they generate alot of dust. keeping up with the PM will be cri

BARE COPPER

Electronics Forum | Thu Jul 09 10:10:40 EDT 1998 | MAURICE MCCLAIN

IS IT BETTER FOR SOLDER PASTE TO SPREAD OUT AS FAR AS POSSIBLE ON BARE COPPER, OR FOR IT TO KEEP THE SHAPE OF THE PRINT? I'VE BEEN DOING SOME SOLDER PASTE EVALUATIONS, AND I'M TRYING TO EVALUATE THE RESULTS. I'M NOT SURE THAT BECAUSE A PASTE MAY HA

Reliability of U-shape appetures

Electronics Forum | Wed Jul 03 07:29:05 EDT 2002 | jax

Where did you find this article about "U-shape" apertures? I believe it is simply talking about rounded corners on the inside of a normal square aperture. ( resembling a filled in U ). It kinda follows the same ideas behind the home-plate design, wit

Reliability of U-shape appetures

Electronics Forum | Fri Jul 05 11:45:47 EDT 2002 | stefwitt

I have seen the U-shaped aperture on a customer site, being used with success. However, the problems with the stencil and the �loose� tabs where reportedly a reason to search for different aperture designs. Before this company could test their ideas

Fiducial Shapes---

Electronics Forum | Fri Dec 13 18:47:22 EST 2002 | stefwitt

In theory you are right, but the camera CCD chip has only small squares as pixels. The edges of the circle lit the pixels only by a certain percentage. In order to find the edges, you will have to use sub-pixels or greyscales. A circle is also prone

Fiducial Shapes---

Electronics Forum | Sat Dec 14 02:51:24 EST 2002 | MA/NY DDave

Hi Thanks for this info. Hope someone new also enters. Funny I just picked up an article, too small, that writes that dots on some known pattern are used to measure distortion and then it shows distortion for square shapes (barrel and pincushion d

Hi there,

Electronics Forum | Wed Mar 02 08:22:11 EST 2005 | robinhoodguy

Hello, I'm a new member to the forum and I am trying to locate some information and companies in a particular sector of the market. I'm trying to find the people that supply die cut components, such as adhesive sheets for circuit boards, foam pads

Hitachy QFP 256 leads problems

Electronics Forum | Tue Mar 20 19:18:53 EDT 2007 | diesel_1t

Hi to all, thank you very much for your feedback. The part is rotated before inspection; and also tend to be shifted to the same direction of pre-rotation so i think is not correcting misalignment or maybe some settings on shape data are not correc


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