Ball Grid Array - A type of chip packaging in which the "pins" or connections to the PCB is a series of small lands or pads which come prepared with small solder balls attached. When place upon the corresponding matching pattern on the PCB and subjected to solder reflow, the balls melt and form ...
4
votes
2answers
95 views
How are BGA dies constructed?
Are the dies made for a BGA package any different from the dies for a QFN or a DIP Package? Do BGA dies have connections on the lower side of the die? In the substrate?
How are terminals put in the ...
0
votes
1answer
65 views
Pad size for JEDEC 1.0mm pitch 27x27 device [duplicate]
I have a JEDEC 1.0mm pitch 27x27 device. The only missing information I need to build a footprint for it is the size of the pads.
What size of pads should I use for a JEDEC 1.0mm pitch 27x27 device?
1
vote
0answers
239 views
0.5mm Pitch BGA Fanout - Reasonable Vias, Drills, Traces and Clearances
I'm pretty new to layout and using Altium.
I need to break out a 0.5mm pitch Spartan 6 BGA, I want to use "reasonable" vias, drills, traces, etc... but I don't really know what that means now a ...
3
votes
2answers
158 views
24-pad, 0.5mm pitch: better to use QFN or BGA?
For a certain TI component, I'm choosing between these two packages, both of which are 24-pad and 0.5mm pitch:
QFN: http://www.ti.com/lit/ml/mpqf167b/mpqf167b.pdf (4 x 4 mm)
BGA: ...
4
votes
2answers
322 views
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 ...
3
votes
1answer
887 views
Hot air lead-free BGA reflow
I'm experimenting with trying to reflow a 0.8mm BGA myself for prototypes/repairs.
I've solved the main problem: alignment. I've used my 3D printer to print custom board guides that align on large ...
1
vote
1answer
275 views
Polygons pours under BGAs?
Is it a good practice to put polygon pours on the top layer underneath a BGA?
I've occasionally got several GND or VCC pins in a row/column, and I'd like to pour around them all. I've got the same ...
11
votes
3answers
1k views
Getting started with PCB Layout for BGA Packages
Are there any good resources for learning the intricacies of PCB layout when dealing with BGA packages?
I'm very familiar with layout for almost every SMT part that has leads on the edge (QFP, TSSOP, ...
1
vote
3answers
976 views
BGA Adaptor Wanted
I'm looking for a low cost adaptor/breakout board for a 64 ball BGA chip (0.8mm pitch) PDF of chip datasheet
I want to use the chip with a bread board, any suggestions?
8
votes
3answers
2k views
DIY BGA soldering feasability
BGA seems to be somewhat of a showstopper for the diy community, especially with the newer more powerful parts being almost exclusively bga. I know it can be done with the skillet/toaster oven ...
