Published Shainin Case Studies

Paul,
“Experimental Technique for Resist Process Evaluation,” by Mark Hiatt and Andy Urquhart, Semiconductor International, May 1987.
This work was loosely based on the ‘so-called’ Shainin Tools and was undertaken when Motorola set up a World Class photolithography room in MOS 3, in Austin, in 1984/5. It created a lot of interest because for the first time a photo process ran without test wafers, and according to Bill Dunnigan it reduced cycle time from 7x theortetical to 1X. It also achieved a Cpk = 2, which in those days meant that the tolerances were +/- six sigma instead of +/- three sigma.
A feature of our approach was to emphasize ‘blocking of data’ to reduce the effects of noise. This was later recognised by Prof. Bohr when he reviewed our paper. (See a previous posting …) This approach turns out to be quite similar to the Taguchi Method, which we were unaware of at the time.
I sent a copy of our article to Dorian, but he didn’t reply, although I later noticed that he used our chart in one of his publications. Of course, much of Shainin’s contributions have been negated by the modern PC and software.
Many more ‘Shaininesque’ projects were ran in Phoenix prior to 1984, when Ted Williams first invited Shainin to Phoenix; but I don’t have any details other than reports that his Pre-control ‘magnetic flag’ method did not work well.
Regards,
Andy

Hi list
Has any one worked on reducing Grinding and Honing process time reduction.Our process time is @ 10sec/piece. Please suggest the parameters to look for and improve and also share your methodology/experience.
thanks in advance
Rajesh

Mr. Paul
You can Help me in cases when use the shainin tecnics
Thanks Luis

Search from ASQ website for shainin related articles if you are ASQ member. I found more than 20 papers of Shainin in the ASQ database. Yep, I am also doing some research on Shanin method.

~BLOCKED~

Respected Sir,
I am Dhivya Pursuing my M.S. Industril Management in India.  I am carrying out my project based on Dr.Shainin’s Component Search Method. I kindly request you to provide me  web links  containing  details regarding this technique, which would be useful for my project.