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Viewing posts from August, 2012

Mounting a BGA on a PCB Quickly and Cheaply.

Posted by: Dave Vandenbout in Blog Post 5 years, 1 month ago

Well, the XuLA2 PCBs arrived last week and now they are moving through assembly. But before I could start that, I had to build up one of the boards to make sure it worked. (I wouldn't want to assemble a batch of boards at $60 a pop and then find out the PCB was wacked.)

The XuLA2 board has a 256-ball BGA on it. In the past, I've sent a single board and BGA to my assembler and had it mounted. Then I would assemble the rest of the board and test it. The problem with doing this is the delay: <<more...>>

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YAMSLBP

Posted by: Dave Vandenbout in Blog Post 5 years, 2 months ago

You've probably read quite a bit of commentary about Curiosity's landing on Mars last night. Well, here's "Yet Another Mars Science Lab Blog Post".

First off, great job! NASA and JPL made an incredibly complicated job look easy. It took millions of man-hours of mind-numbing effort to get to that point. Now I'm excited to see what Curiosity digs up. It's a great achievement.

OK, that's out of the way. Now I want to respond to some of the dumbass comments I saw on Twitter and the NASA Ustream last night. <<more...>>

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