Electronics Forum | Thu Jan 19 20:40:52 EST 2006 | Gary Kemp
We are experiencing a blistering problem during our process of lead free assembly. The customer has supplied us with the bare fab rated at 140 Tg. I am under the assumption that the Tg rating should at minimum be 170. Does anyone know if there is
Electronics Forum | Tue May 02 05:49:15 EDT 2006 | Rob
Get them both to prove their placement rates & accuracy on 0201's, and also guarantee that the machines will achieve this in production. Also get them both to give you a guarenteed placement rate on your most common & difficult boards, then you ca
Electronics Forum | Fri Dec 22 14:38:34 EST 2006 | Mike Z
We are undertaking a project to try to put a rating system to our DFM documents for both PCB design, final assembly, and testing areas. I am wondering if anyone has found a tool that has been used as a DFM rating system so that I may save some time
Electronics Forum | Thu Aug 07 22:56:50 EDT 2008 | dlocampo
First all, you must define the specific defects that you wanted to screen out by your AOI system based on its capability, so you can allocate the undetected defects on your other means of inspection methodology. Then optimize your AOI inspection para
Electronics Forum | Sun Nov 08 10:41:11 EST 2009 | rao
Excellent Web OEE calculator... For Ideal Cycle time we use to take Programming Cycle Time but in this calculator it seems you have taken Equipment Rated CPH. For a Given Board & the placement locations the rated CPH is not at all attainable because
Electronics Forum | Tue May 05 11:12:01 EDT 2015 | anirudh_thabjul
Thankyou once again dude. Please Don't mind it. I have one more doubt regarding the Max.Power Rating of SMD Resistor. ---"Is same principle which you told application for Maximum Power rating Of SMD Resistor also"?--- i.e Higher Powerrating is
Electronics Forum | Tue Apr 06 07:17:30 EDT 2004 | mzaboogie
Good Morning All, We are in the process of setting new attrition rates on SMT components. Initially, we will be setting a rate accross the board for SMT components. We realize that a per part number system is far more accurate but at this time, some
Electronics Forum | Wed Oct 10 11:20:31 EDT 2007 | jdengler
Do all 0201's reject at the same rate? If even 1 P/N has a lower reject rate this can point towards a feeder problem. I have had a similar problem on a CP-IV-2 with 0402's that was caused by feeders. If all reject at the same rate it can be the PD o
Electronics Forum | Wed Oct 24 21:17:13 EDT 2007 | hussman
Ramp rate is measured in degrees per second. Max and min temps are not required to to establish "ramp rate". The difference between parts, like I was describing is Delta T. But, ramp rate is a generation from this as well. Most component manufact
