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008004 land pattern dimensions for high yield

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ransonjd View Drop Down
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    Posted: 13 Jun 2024 at 7:34am
I'm going to be using 008004 (0201 metric) capacitors in an ultra-small design. 

I'd like to get as high assembly yield as possible, and I was wondering if there were any recommended low-defect land patterns? 

I've seen a number of papers on 01005 land patterns, but I haven't seen similar for 008004.  

I want as many data points as I can get. 

I have requested guidance from my assembler, and Murata provides a recommended range of dimensions. 

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ransonjd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ransonjd Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jun 2024 at 7:50am
For anyone else looking, I found this IPC APEX presentation from Fuji:

https://www.ipc.org/system/files/technical_resource/E40%26S06_03%20-%20Scott%20Wischoffer.pdf
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SDTKO View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SDTKO Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jun 2024 at 1:29am
The only sane thing to do in this case - as you already figured out - is talking to your assembler.

For small chip packages, chances are that generic calculators and general recommendations do more harm than good.
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