All Questions
Tagged with pcb-assembly bga
7
questions
0
votes
0
answers
81
views
BGA Microcontroller Only Works with Finger Pressing
I have a PCBA with a BGA microcontroller on it. I found that two UART pins send/receive garbled output unless I press my finger down on the BGA package itself.
I've seen this on a few boards and I ...
- 167
5
votes
1
answer
270
views
How does PCB manufacture work for double sided SMT assembly with BGA's?
How does a conventional board house deal with the issue of reflow during PCB component assembly with BGA's on both sides of the board?
Are two different solders used (like regular lead free SAC305 and ...
- 84.5k
1
vote
1
answer
325
views
Via on pad for bga decoupling. Is this ok when hand soldering?
I have understood that via on pad is bad for automatic assembly processes, but can be fine for hand soldering, since it is easy to compensate for the solder that wicks into the via.
I am doing a small ...
- 13
3
votes
3
answers
890
views
Mounting BGA package on PCB with force without reflow
I was searching for a method to use a BGA based MCU on PCB which could be easier to change frequently. There are sockets for this purpose but I want to ask what if I simply put MCU on the right place ...
- 31
24
votes
4
answers
3k
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Why are there no BGA chips with triangular tessellation of circular pads (a "hexagonal grid")?
Ball grid arrays are advantageous integrated circuit packages when a high interconnect density and/or low parasitic inductance is paramount. However, they all use a rectangular grid.
A triangular ...
- 8,661
2
votes
3
answers
541
views
Creating with BGA
I have a project that I've begun to work on, it's sort of an embedded PC type project, with a iMx6 arm processor. However, since this is a (potentially) commercial venture, we can't use prebuilt ...
- 23
5
votes
2
answers
2k
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What equipment and tools can be used to fabricate an 8 layer PCB for a prototype that has a 584-BGA microcontroller
I am in the process of setting up a small design laboratory and one of our first projects include the use of a 584-BGA microcontroller. This means that we'd have to use an 8 layer design, something ...
- 169