HP-01 calc watch go withs - brochures, t- shirts, booklets, ad copy who else collecting?

ED SHARPE couryhouse at aol.com
Wed May 22 09:41:46 CDT 2019

well the  good  thing  is  Marc  with  turn over in  industrial  facilities  and  updating  tech...    what  you  are  looking  for   should  come  available at a  reasonable   price....   yikes  I  am amazed  how  cheaply    some of the normal  biological  scopes   go   for   now... we have been offloading  some  of  ours   from the  collection as  for  instance  with  a ziess standard  we  have  3  and   really  should  only  have  one as  an  example....   they are   a partial  price  of  what   they would  have  been  10  years  ago. Let  me  know  how  you   do.  looking   for  Nomarsk   stuff. We   do  not  have  any  extra. We  may  have  something  extra in  Nikon   with  Francion Yamatto   somewhere though,

I  have  not  been  to may   auctions at  any of  the industrial  facilities or  auctioneers   in  years  to  look   for   hi  power   semiconductor   scopes   but  that  is  where  they  used to  show  up.
In a message dated 5/20/2019 10:36:40 PM US Mountain Standard Time, curiousmarc3 at gmail.com writes:

Nomarski microscopy, Ed. Differential phase contrast microscopy. Makes very small height differences (partial wavelength) on mostly planar objects pop out, and creates amazing color effects as a biproduct. Pretty much a stalwart of any good cleanroom microscope. Every manufacturer offers it, usually a pretty expensive option as all your optics have to be stress-free. I dream to own one of these one day.



From: cctalk <cctalk-bounces at classiccmp.org> on behalf of "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Reply-To: "COURYHOUSE at aol.com" <couryhouse at aol.com>, "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Date: Monday, May 20, 2019 at 11:20 AM
To: "COURYHOUSE at aol.com" <couryhouse at aol.com>, <spacewar at gmail.com>, "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Subject: Re: HP-01 calc watch go withs - brochures, t- shirts, booklets, ad copy who else collecting?

should  say

 Francion Yamamotto   not  Yrancion Yamamotto

In a message dated 5/20/2019 10:07:04 AM US Mountain Standard Time, couryhouse at aol.com writes:

Since  we  have  nice  microscopes at  the museum  project  we  were  hired  to  photo  some IC  innards  years  back. This  ended  up  becoming  a minor obsession  for  a short  time  as  the  artwork under  various  illuminations  is  fantastic. 

One of the things  that  seemed  to show the mots  difference in  detail between layers and highs  etc... was  differential  interference contrast  (after  nomorski (sp?) ( this  was on our  Ziess Ultraphot  and  seems  to be  a Zeiss  only    offering.0   on  the  Japanese  side of  things  Nikon  had   Yrancion Yamamotto (sp?)  method  which  seems   nice    but  I  preferred  the   Nomeriski.

Using  these   methods  you  may be  able  to extract  more usable  detail   than  with traditional methods.   and  wow  the  color  photos  are   frame-able!

But   kinda  what  I  wanted to mention  to is  depending  on  what  era   the chips  were  the  over  coatings    seemed  to  worsen  the view  the newer the chip  or  so  I  thought at the  time.

Such  great   fun  to  photo   the  little  ic innards!   even  a  standard   illum.   scope  with the  vertical  episcopic  illumination  gives   some    fun  photos  too,  especially  on the  earlier   chips.

Don't  know  if  any  of   this  will help on the  HP-01  roms  but  sure  was  fun to talk about  again

ed sharpe archivist for  smecc

In a message dated 5/20/2019 9:00:09 AM US Mountain Standard Time, spacewar at gmail.com writes:

Only just within the last month I finally obtained a ROM dump from a production HP-01, for potential use in my Nonpareil simulator. Previously I only had the preproduction code listed in a US patent. I'm not sure when I'll have time to actually work on the simulation, though.

My original plan had been to crack open an HP-01 module and try to read the ROM bits optically, as Peter Monta did for the HP-35. However, that didn't work, probably due to a passivation coating on the ROM dies.

More information about the cctalk mailing list