Electronics Forum | Wed Mar 27 01:06:12 EST 2002 | ianchan
Hi Guys, We are using two types of support Jigs for our PCB boards, during the paste printing, chip shooter, and IC mounting. The two types of support Jigs are : 1) "self-fabricated" aluminium support Blocks 2) "off shelf purchased" support Pins T
Electronics Forum | Fri Mar 29 17:58:21 EST 2002 | slthomas
We have a new assembly with bottom side components, and all the chip caps and resistors are 0603s. The dog boned shape of the caps necessitates a pretty big (and tall) dot to hold them still during placement, and when they get placed the dot squishe
Electronics Forum | Wed Jun 11 11:12:10 EDT 2003 | JB
We rarely use the tack-time on our machines, even if we run products that are populated with large components. ( ICS, Tant caps etc.) There is a default tacktime for each component on the component library, is called Speed Data. For the components
Electronics Forum | Wed Nov 09 11:01:41 EST 2005 | DannyJ
Hi Red and Greg, First, to Avalancher, the service that is mentioned is fantastic. I have used it various times with various connectors and headers with fantastic results. Just contact MyData and they'll tell you what they need. It's usually 5-1
Electronics Forum | Sat Feb 12 10:33:31 EST 2000 | Francois Racine
First I'm a french people so excuse my bad english writing. I have a complete smt production line. First a screen printer DEK 240, a chip shooter PANASERT MVIIV, a multifonction machine MULTITRONIKS EP6000, a reflow oven at the end of the SMT line a
Electronics Forum | Tue Jul 03 08:14:49 EDT 2001 | Stefan Witte
If you hold your board sideways in a 90 degree angle you apply a force of 1 g to your components. 1 g translates into 32 ft / sec. square. This is not too much acceleration for fearless roller coaster drivers but Melf�s and Tantalums can fall off at
Electronics Forum | Mon Jul 23 12:50:03 EDT 2001 | nwyatt
In brief, most companies have a board loader, a screen printer machine, various part placement machines (usually at least one chip shooter for small parts and one for fine pitch and larger components), and then a reflow oven. (inspection equipment i
Electronics Forum | Thu Feb 03 11:20:15 EST 2000 | John O'Brien
This is getting to be a more common practice, especially with the application of a 2-D bar code directly to the board (via laser, ink jet,etc.) Some really major companies are jumping on the bandwagon because it also allows treating each board as a l
Electronics Forum | Wed Oct 28 16:54:17 EST 1998 | Dave F
| Sirs, | | what would be a good way to judge the reliability/robustness of a stencil printer or chip shooter? | | Does any equipment supplier specify detailed maintenance schedules? Is there a source of machine failure data (MTBF, etc.)?
Electronics Forum | Tue Sep 08 15:11:26 EDT 1998 | Mike Demos
Rich: In my experience, I have seen three cases of SMT Capacitors cracking: 1. Due to thermal shock when entering the wave solder. Note that these were 1210 package sizes on the wave solder side of the boards. We were able to trace this back to th
