Electronics Forum | Sun Jul 13 10:33:08 EDT 2008 | mpolak
Hello, Recently I have change our profiles. After I profile one board it look really good, within the paste spec. But I have noticed when board leaves the reflow zone and enters the cooling zone it looks like popcorn effect some components jumping o
Electronics Forum | Mon Jul 14 12:55:07 EDT 2008 | arminski
I have a board with the above problem from our PCB supplier. After they applied the solder mask and run the PCB's to HASL process, the solder mask bubbled on one side of the PCB making the solder mask thickness higher and PCB looking awkward. They s
Electronics Forum | Wed Jul 16 10:31:29 EDT 2008 | vms
I would recommend a mpm, some one else would say a dek and some one else would come up with some thing else. Both dek and mpm printers will take the 29x29 stencils. And you have more money than you need for one of them. Shop around and then go and
Electronics Forum | Thu Jul 17 15:12:18 EDT 2008 | slthomas
To quote a regular here, "Are you sure your washer is set up correctly?" :P He's a WS junkie. This is a really common problem and is discussed here often. Mid chip solder balls (solder beads) are almost always the result of too much paste being dep
Electronics Forum | Tue Jul 15 18:05:48 EDT 2008 | arminski
How many times do you measure your oven's profile? I have seen companies running a thermal profile prior to every run of their products into the oven. But if you are in a low to medium volume - high mix category what is the best frequency of measurem
Electronics Forum | Thu Jul 17 08:28:20 EDT 2008 | jdumont
With our last two ovens (Heller and now BTU) spanning the past 7 or 8 years I did it once a month and have never seen any issues. Reflow ovens these days with PID controllers know exactly what they are doing inside well before you run a profiler thro
Electronics Forum | Thu Jul 17 14:30:42 EDT 2008 | tommyg_fla
1500 lbs) vary by a couple of degrees) were standard. I thought that flux penetration into PTH barrel and solder pot immersion depth and solder pot parallelism would be also critical factors. We are using the ECD WaveRider to measure the implied sold
Electronics Forum | Thu Jul 24 15:00:19 EDT 2008 | scooter
I use Publisher to create work instruction with pictures and text boxes containing the part numbers and descriptions of the parts for that assembly . Then use arrows to show their location on the picture If the assembly is complex you might need to
Electronics Forum | Mon Jul 21 10:33:51 EDT 2008 | maxpower097
Hey guys. I'm a newb and was thrown in to this project. The company I work for opened some spools of chip they have and it says on a sticker, "BAKE if PINK" and it is pink. Is this something we can do onsite? I have researched it and it says bake a
Electronics Forum | Thu Jul 24 17:02:18 EDT 2008 | jlawson
OK , the H6H file is a binary structured file and can be read if you write a program in VB etc to extract the info you need, would take some time to sort out where to get what in the file, juki would no help you here.... Assuming you need placement
