Electronics Forum: model (Page 91 of 161)

Optical Inspection Equipment for PBGA

Electronics Forum | Wed Jan 02 17:18:01 EST 2002 | Carol Stirling

Hello All, Hope you had great holidays and are all rested up for 2002! I would like some feedback on various optical inspection equipment for PBGA that different companies have used - the drawbacks to look out for, certain features that can be reco

SMD solder joint calculation

Electronics Forum | Wed Jan 16 20:06:09 EST 2002 | davef

No, not as such. Consider: * Using the IPC calculator [free at http://www.ipc.org]. It allows you to consider / assess the amount of solder when designing pads. * Reviewing IPC-7525 - Stencil Design Guidelines. It gives general aperture guidelines.

CMMs (Coordinate Measuring Machines)

Electronics Forum | Wed May 08 23:19:12 EDT 2002 | Jones

We currently use the Mitutoyo vision measuring machine Model #qv202-pr05f. We use it as a tool for measuring placement accuracy on both our chipshooters and glue machines. It also has the ability to check the glue dots for accurate sizing. As far as

Comparison between Glue & solderpaste process

Electronics Forum | Fri Jun 21 12:49:58 EDT 2002 | surinder

Hi Russ, Thanks for your input.My board has SMT Chip components, SOT23,SOIC's & 2QFP (25MIL PITCH). Also,taking consideration that the board is well design for Wave.This board has been designed end of last year. We have latest model of Electrovert ma

Used X-ray is hunted! VJ-1000 is good candiate

Electronics Forum | Tue Jul 30 20:32:39 EDT 2002 | YH Shiau

We look for a real-time X-ray machine with 90~100KV power to do the BGA/ FCCSP assmebly inspection. The key role for this x-ray will be defined as process control tool and PCBA level FA. VJ-1000 from VJ Electrnix is kind suitable for our needs. D

Poor Fuji recognition of PhyComp 0603 (1608) cap

Electronics Forum | Wed Sep 11 01:17:59 EDT 2002 | Brian Sloth Bentzen

Hi Steve. My Fuji CP6 is model 643 and are 3 years old, maintained and upgraded with the newest software along the way. And, actually it was Fuji Japan that gave in, not Fuji America. Fuji Japan tested our components and found the same problem and

BGA rework systems

Electronics Forum | Mon Nov 25 12:16:03 EST 2002 | Dragonslayr

I have conducted 2 BGA rework studies over the last 3 years or so. Each time I came to Air-Vac as the prefered machine. I looked at all the models mentioned in the other posts here plus a few more. As a final step in the study I took the actual oper

Smartmedia connector in reflow soldering

Electronics Forum | Fri Nov 22 13:41:55 EST 2002 | cristiano

We are experiencing problems with a smartmedia connector during the reflow solder process. The connectors stay a little bended after the oven. In this case the middle leads are not solded, because they stay with no contact on the board. The conector

Maximum Rework per Board

Electronics Forum | Mon Feb 03 12:52:42 EST 2003 | MA/NY DDave

Hi I won't give you an answer directly yet I hope the following makes sense. The max rework depends on what is used in the reliability model and/or experimental data as worst case for the applications end of life reliability needs. E.G. let's say

First time with reflow oven....

Electronics Forum | Tue Feb 11 12:59:26 EST 2003 | matherat

The assembly process involves activity before you get to reflow. Reflowing is the easy part. Putting paste down and placing parts in wet paste is the terrifying part. Benchtop reflow ovens can be a real handy tool for small production but with the g


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