Andrew ZonenbergDon't mind me, just over here escape-routing this BGA inside out
It made the connector routing so much easier. Otherwise I'd have to swizzle lanes in all kinds of awkward ways with lots of mid-span vias and criscrossing. It's much cleaner this way.
Phobos
Trammell Hudson@azonenberg have you seen this one weird trick to reduce the number of vias in your PCB design?
Joel@th @azonenberg Through hole components are easier to work with
Ivor Hewitt
jaseg@th @azonenberg Imagine you try to order a reel of chips but you try to convince the manufacturer to put them in the reel upside down
~n
Aaron Sawdey, Ph.D.@acsawdey @azonenberg @nblr @th doing that by hand would probably not be prohibitively expensive, but it would make for one of the more annoying jobs on the production line. It would also carry some risk of bent pins.
@jaseg @acsawdey @azonenberg @th
Leave alone getting the rotation right with a 100% success rate. Humans are not good at this.
Probably easiest to flip the entire tray into a new/empty one.
Leave alone getting the rotation right with a 100% success rate. Humans are not good at this.
Probably easiest to flip the entire tray into a new/empty one.
@nblr @jaseg @azonenberg @th yeah I was playing the comedy aspect here .. thinking if the chocolate factory episode of I Love Lucy (âJob Switchingâ) only with trays of chips.
Reality is the âflip tray into anotherâ or a special attachment to let the robot flip it after it has picked it out of the tray, that way you donât need 2 trays for the situation where the same chip is used both ways. And the humans donât have to do anything different they might screw up.
Marcus MĂźller@jaseg @acsawdey @azonenberg @nblr @th I don't know whether that is a high-volume board. If not, why flip chips at the chippy instead of at the assembly? If it's some poor soul's job to rotate the chip anyways, that might just as well happen when manually placing that single "sunk" IC prior to reflow. Reference photo of how correct rotation looks like from the bottom (now: top side) next to the workplace.
Szymon BÄczkowski
Tom Verbeure@owiecc I love the random SMD flipping box at the bottom of that page.
F4GRX SĂŠbastien
OwOday@th @azonenberg fault injectors dream
tuv@th @azonenberg Great! I like ESP32 wroom modules in almost every way, except they make the board feel thick
Klaus Frank@th @azonenberg looks like something that would cost extra in manufacturing. Cant imagine normal pic and place can do that properly. Can it?
atapi â¤ď¸@th @azonenberg WHAT THE FUCK
The Penguin of Evil@th @azonenberg One of those in some of the Amstrad machines
@th @azonenberg Found an image
https://www.retronerd.co.uk/wp-content/uploads/2022/07/IMG_20220709_183441-scaled.jpg
and zoom in on the flat chip left middle. So there are millions of computers with that in them 8)
vxo
Willow 
éŁćł@th @azonenberg god I love cursed ideas like that
Dr. What@th @azonenberg TRS-80 Model 100 display board. The "dead bug" mounting of chips is well known.
chrysn@th @azonenberg For some SMD components you don't even have to go all the way through: https://youtu.be/q94DnPZlTcM?feature=shared&t=36
