Friday, June 29, 2012

ISim bugs and introducing the RED TIN internal logic analyzer

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Earlier this month I was working on a Spartan-6 based design using the on-chip DDR SDRAM controller (MCB) and ran into some problems. For ...
Monday, June 18, 2012

The final frontier - 01005 passives

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Once I managed to assemble a test vehicle full of 0201 passives, I started to wonder if I could manage to go any smaller with hand ass...
2 comments:
Thursday, April 19, 2012

PCB fab characterization - undercut in DorkbotPDX batch order

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Most of the time people making PCB simply design the board exactly as they want it to look, send it off to the fab, and trust that they'...
Saturday, April 14, 2012

Fab screwups, then taming the 0201 passive

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Since I've already developed a reliable process for reflowing 0402 surface mount components, as well as 1mm pitch BGA, the next logical ...
Saturday, March 24, 2012

Analysis of RadioShack Duster Spray

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In research and industry, spraying with compressed gas (usually dry nitrogen) is the standard way to remove liquid from a specimen after sol...
2 comments:
Saturday, January 14, 2012

First BGA board

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(NOTE: This was originally scheduled to happen a lot earlier but the fab screwed up shipping on the boards. I only got them today.) A whil...
2 comments:
Saturday, December 31, 2011

Multiple Lithography in Homemade PCBs

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Earlier this week I decided it was about time to try making a board for some of the 24AA16 EEPROMs I had sampled from Microchip a year ago. ...