Electronics Forum | Fri Nov 08 11:37:44 EST 2002 | jonfox
1. Back in the early days of consumer digital cell phones, we ran into the same problem. PCB with 2000 parts in a 5"x2" area, and double sided. We ended up using our standard vacuum tooling for the NIC side and stiff ESD safe foam for the NAC side
Electronics Forum | Fri May 09 17:47:37 EDT 2003 | slthomas
I think medical manufacturers are more inclined to proceed with caution because they have so much more at stake when something fails out of the box, or worse yet during a code. A lot of them locally have gone outside for pcb assembly, but stayed dom
Electronics Forum | Sun Dec 08 22:20:39 EST 2002 | grantp
Hi, We have been manufacturing a PCB, however it's been quite tricky to profile, as the edges of the PCB are reflowing before the center of the PCB. I have looked at the design, and there is a small power plane for 2.5 Volt in the center of the PCB
Electronics Forum | Fri Dec 13 10:21:28 EST 2002 | gregp
You asked for opinions, here's mine. If you feel you need to wear a walkman to get thru the day then you can go wear it in the unemployment line. Anyone who says they are more productive when wearing a walkman and listening to music in a dynamic wor
Electronics Forum | Mon Feb 24 11:02:42 EST 2003 | Claude_Couture
Every time this problem was brought to me, handling was the problem. Make sure to: 1- track the exact place the components are lost, i.e.: visually inspect the pcb before and after each step in your assembly line. 2- if step one does not pin point t
Electronics Forum | Mon Mar 10 10:17:15 EST 2003 | gregp
Tact time as defined by the IPC 9850 standard is "the average time required to place a single component while maintaining the specified placement process capability. Excludes transfer time, fiducial time and nozzle change time." Sounds like what you
Electronics Forum | Mon Apr 28 18:34:17 EDT 2003 | Brian W.
We typically do not try to pick up and hand placve chip resisstors and capacitors. The risk and cost is too high for components that are a penny or less. We take into consideration that on many of our components, someone will have to test them to v
Electronics Forum | Tue May 06 09:38:41 EDT 2003 | blnorman
We use both labels and lasers to mark our boards. Since implementing the lasers, the downtime attributed to bar code labels on those lines have dropped to virtually nothing. We still have problems with the labels wrinkling during reflow making read
Electronics Forum | Fri May 16 13:30:10 EDT 2003 | T.Vick
Tom, You've recieved some good feedback so far... keep in mind that both models of machines you have utilize a 4x40 configuration. This allows for even greater flexibility if your jobs are small enough. We also offer Dual Track Feeders to shrink t
Electronics Forum | Wed May 28 08:25:08 EDT 2003 | davef
That's what we do [no more than three reworks or mods]. Your "four reworks permissable" was probably based on the 55110 five thermal cycles, counting wave soldering as the first cycle. How do you plan to keep track of each of those rework actions?
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