Electronics Forum | Thu Nov 30 16:30:46 EST 2023 | kojotssss
Which profile type is used, RTS or RSS?
Electronics Forum | Thu Nov 30 17:01:32 EST 2023 | kojotssss
Ramp to spike. The same as (ramp to peake)
Electronics Forum | Thu Nov 23 04:58:55 EST 2023 | klauss
We have 30 LED PCBs. Only differences between them are size and led counts. there's about 10cm (3.9inches) between smallest and largest board. and leds start from 60 to 80 pcs. and all leds are the same My question is that, do i have to set 30 diffe
Electronics Forum | Thu Nov 23 11:01:21 EST 2023 | kojotssss
Perform profiling with a product where the LED is placed more than on another products. You get a valuable case with a higher delta T and possible maximum reflow temperature must use, etc. This profile will be used for similar products. You need to o
Electronics Forum | Mon Nov 27 22:01:57 EST 2023 | emeto
It is about thermal mass and heat dissipation. If you want to be accurate, you should profile each one. If you want to be efficient, You should design all panels to come to the same size. This way variation from panel to panel will be minimal (given
Electronics Forum | Thu Nov 30 10:05:02 EST 2023 | jineshjpr
All depends on how accuracy you require -- Incase if the PCB layers are same along with same solder paste uses -- pls segregate as batch in terms of similar pcb dimension ( within 30cm variation) attach thermo couples to maximum area -- May be you ne
Electronics Forum | Thu Nov 30 16:18:28 EST 2023 | proceng1
We have a customer that at one point had a dozen LED boards that were all very similar in size. They used Aluminum boards and I found that the difference in thermal mass between the assemblies was negligible considering the largest difference was ac
Electronics Forum | Tue May 19 16:33:56 EDT 2009 | stimpk
My 1st question before I can give you an idea or for one even post an idea. Unless I am reading this wrong , you are doing board repair/refurb? You are looking for an inexpensive way to do this repair while at the same time acheieving a proper reflo
Electronics Forum | Tue Apr 10 04:16:20 EDT 2012 | grahamcooper22
you are seeing a typical issue that is caused when such small volumes of paste are printed....there are several reasons for it..the tiny amount of flux in the small deposit becomes exhausted much quicker then it does in a larger deposit ( the flux ma
.gif)
.gif)
