Monday 31 December 2018

Molecular Layering in the 2018 Millennium Prize Nomination letter

In 2018, Dr. Tuomo Suntola received the Millennium Technology Prize (MTP) for his groundbreaking work on Atomic Layer Deposition (ALD). In addition to being a personal recognition to Suntola, the MTP 2018 was a great recognition to ALD as an enabler of many technologies and of the continuation of Moore’s law. The whole field has benefited.

In the Virtual Project on the History of ALD (VPHA), materials (publications, Wikipedia updates) have been created which supported the nomination. In summer 2017, it was a natural continuation of VPHA to write the MTP nomination letter for me in the name of my university.

ALD has been invented independently twice - under the name Atomic Layer Epitaxy by Tuomo Suntola in 1974, and under the name Molecular Layering by Valentin Aleskovskii and Stanislav Koltsov already in the 1960s (see, e.g., Wikipedia).

When writing the MTP nomination letter, in addition to describing Suntola’s groundbreaking work and the impact of ALD from all angles, I also - of course - I wanted to acknowledge the pioneering work of Aleskovskii and Koltsov, who both have already passed away.

Friday 28 December 2018

People Behind the Science podcast with Dr. Tuomo Suntola

"Let's first think what to do, and then do it" (Suntola)

The podcast People Behind the Science by Dr. Marie McNeely,, has made a podcast interview with Dr. Tuomo Suntola as guest. It is Episode 461, Here, Suntola is discussing atomic layer deposition (ALD), history of science, how he built transistor radio as 12-13 year old, his book "The Short History of Science", his historical role models, working in industry vs academia, his fundamental works, Millennium Technology Prize, ... 

Definitely recommended listening. Accompanying reading related to ALD details could be my "Suntola essay",   

The episode was published already from August 6, 2018; however, it caught my attention only Dec 27, 2018. Thanks for Prof. Sean Barry for pointing this episode out in Twitter

Virtual Project on the History of ALD (VPHA) - in atmosphere of Openness, Respect, and Trust

Thursday 6 December 2018

Story of the image: Reconstruction of the first Atomic Layer Epitaxy experiment

On December 6th, 2018, I have made a small donation to the world. I uploaded the image, which shows a reconstruction of the first Atomic Layer Epitaxy experiment (nowadays Atomic Layer Deposition) in Wikimedia Commons. (I also created a new gallery, Tuomo Suntola.)

The image is shared in Wikimedia Commons with the Creative Commons Attribute-Share Alike license (CC BY SA 4.0). This means that anyone in the world is free to use the image, also in commercial works, without the need to ask for further permission. The licence requires that one acknowledges the source (BY) and if edits are made, they are shared with a similar licence (SA). Ok ways in my view to acknowledge the source are: 

  1. Noting the authors & licence: Riikka Puurunen & Tuomo Suntola 2014 (CC BY-SA 4.0) 
  2. linking to the Wikimedia page

This image is quite special in my view and it was quite an effort to make it, so I am happy it is now shared for anyone's further use. (If someone is interested, I can tell another time, how it was made.) Had the image been used in the way it was first intended, it would not have been possible to share it in Wikimedia Commons. Luckily, things don't always go as planned. 

Here, I want to tell the story of this Suntola image, as an example to perhaps learn from.

Tuomo Suntola's main review on Atomic Layer Deposition (Epitaxy) now Open Access

Open Access for Dr. Tuomo Suntola's main review on atomic layer deposition has been kindly given by the Elsevier publisher (per request, for a year’s time?). As the review is from 1989, it is still entitled ”atomic layer epitaxy”. In the (evolving) list of publications on the history of ALD on the website of the Virtual Project on the History of ALD (VPHA), this review is currently the oldest one listed.  

For the 1989 review, among other things, Suntola mapped the laboratories working with ALD known to him at that time. The list is in Table 1 and ordered according to the first publication. The list is very interesting to read through. I notice laboratories (in alphabetical order) from Austria, Canada, China, Finland, France, Germany, Japan, Netherlands, UK, USA. From Finland, the list gives (in the order of first publication) Lohja Oy; Tampere University of Technology; Helsinki University of Technology, Laboratory of Physics; Helsinki University of Technology, Department of Chemistry; Joensuu University. 

I hope many people interested the field of ALD will have a look at the article - and perhaps even cite it in future publications. 

Virtual Project on the History of ALD (VPHA) - in atmosphere of Openness, Respect, and Trust