More on IC lithography, Manhattan masks

 Another item from the Asianometry video mentioned yesterday:

source: https://www.youtube.com/watch?v=HxyM2Chu9Vc&t=404s

At about 12 minutes he mentions Manhattan masks:

Of course I thought of this:

source: https://hackaday.com/2011/09/04/a-ham-radio-receiver-manhattan-style/

I believe this is the work of Dave, AA7EE:

https://aa7ee.wordpress.com/

I was also listening to this Soldersmoke podcast with Bill and Pete:

https://soldersmoke.blogspot.com/2023/11/soldersmoke-podcast-249-travel-petes.html

where Pete mentions that a listener has built one of his circuits using a circuit board but Manhattan style - then Bill mentions that he doesn't like through hole circuit boards with the insertion on one side and flipping to solder on the other side.  He finds the Manhattan style of building easier.  Also the hassle of repair and mods with through hole circuit boards is mentioned.  

So I'm considering maybe in the future trying a modified type of kit circuit board, instead of through hole have Manhattan style pads etched into the top layer of the board with a full ground plane on the reverse.  This would get rid of my pet peeve with Manhattan style building which is using crazy glue or hot melt glue to hold down the pads.  With etched pads there's less exotic fumes while soldering (maybe).

We'll see.

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm