Monday, 2 November 2020

VPHA status update 2.11.2020 - November Networking ... , ALD OpenLearning, Erratum, ALD Stories...

 The email below was sent to 79 VPHA contributors and 70 prospective contributors.

 From: Puurunen Riikka <> 

Sent: maanantai 2. marraskuuta 2020 16.27
To: Puurunen Riikka <>
Subject: VPHA status update 2.11.2020 - November Networking, ALD OpenLearning, Erratum, ALD Stories...

 Dear VPHA contributors and prospective contributors,

 A year has passed since the previous update on the Virtual Project on the History of ALD (VPHA), copy here.

 While there has been no actively coordinated activities in VPHA within the past year, still, there has been progress taking place related to understanding and spreading info of the history of ALD and the two independent inventions. Below, you find links to blog posts that tell more of an Aalto OpenLearning platform on ALD; discuss the future of the vph-ald.com website; analyse an erratum written on an article that deals with the history of ALD; and share of a podcast in the Beneq ALD stories podcast, episode on the history of ALD, where I had the honor of being interviewed.  

Friday, 23 October 2020

Registration open for 2020 November Networking – ALD at Aalto University, Part 1: Public Webinar

Continuing the tradition (?) started in 2019, a networking event will be organized around atomic layer deposition (ALD): 2020 November Networking – ALD at Aalto University. The event will take place on November 25 and 26, 2020.

Due to COVID-19, in 2020, the event will be fully online in Zoom. The program will be in two parts:

  • Part 1: Public webinar is open for anyone to attend and has high-level invited speakers: Dr. Jonas Sundqvist, Dr. Tuomo Suntola and Dr. Angel Yanguas-Gil. Additionally, there will be tutorials by Prof. Riikka Puurunen and Prof. Matti Putkonen. (See the webpage & program for details.)
  • Part 2: Local networking is aimed for local (Finland-based) participants. The core of  Part 2 will be an online poster session where submissions from doctoral students, postdocs and other researchers are welcome. Additionally, there will be brief introductions to research groups, companies and projects, and a presentation by Prof. Timo Sajavaara on the characterization of ALD films. For the poster session we hope to create an online experience that resembles a regular conference’s poster session -- let’s see how it works out.

The registration link and all related info, including a preliminary program, are found in the event website: https://www.aalto.fi/en/events/2020-november-networking-ald-at-aalto-university. Registration was opened on 21.10.2020 and will close for participation with presentation on 11.11.2020 and for participation without presentation 22.11.2020.

Saturday, 17 October 2020

ALD Stories podcast: Episode 2 on the History of ALD

On October 16, 2020, ALD stories podcast Episode 2 was published, where Riikka Puurunen -- coordinator of the Virtual Project on the History of ALD (VPHA) -- was interviewed by representatives of Beneq Oy.


The Episode 2 was centered around the history of atomic layer deposition (ALD), but was also a "fireside chat" on many other topics. Mentioned were for example: conformality; catalysis; 40 Years of ALD in Finland – Photos, Stories (FinALD40 exhibition); Baltic ALD 2014 conference; story of Suntola’s atomic layer epitaxy; two almost parallel inventions of ALD; Beneq applab opening in St. Petersburg 2013; molecular layering; 1st international conference on atomic layer epitaxy 1990; international ALD conference series; November Networking – ALD at Aalto University; Millennium Technology Prize; Virtual Project on the History of ALD; ALD window; misconception of full monolayer growth per cycle for ideal ALD; conformality test concept & saturation profile & lumped sticking coefficient.

Persons mentioned, at least: Outi Krause, Suvi Haukka, Tuomo Suntola, Sven Lindfors, Arto Pakkala, Victor Drozd, Valentin Aleskovskii, Angel Yanguas-Gil, Jonas Sundqvist. Companies mentioned: Microchemistry, Neste, Beneq, Lohja, Picosun.

This podcast should be interesting for those interested in the history of ALD and the two independent inventions (atomic layer epitaxy and molecular layering). For example, it shares details related to the birth of the two ALD history essays in Chemical Vapor Deposition journal, which have not been presented earlier. 

The podcast is available in at least via:

Tuesday, 9 June 2020

Analysis of "Erratum: “History of atomic layer deposition and its relationship with the American Vacuum Society” [J. Vac. Sci. Technol. A 31, 050818 (2013)]"

A correction has been recently published related to a scientific review article on the history of atomic layer deposition (ALD). The correction is entitled "Erratum: “History of atomic layer deposition and its relationship with the American Vacuum Society” [J. Vac. Sci. Technol. A 31, 050818 (2013)]" and it is authored by G. N. Parsons, J. W. Elam,  S. M. George, S. Haukka,  H. Jeon,  W. M. M. Kessels,  M. Leskelä, P. Poodt, M. Ritala, and S. M. Rossnagel. It is published in Journal of Vacuum Science & Technology A 38 (2020) 037001; https://doi.org/10.1116/6.0000143As the title indicates, the article corrects an article published earlier in the same journal, by the same authors: Journal of Vacuum Science & Technology A 31 (2013) 050818; https://doi.org/10.1116/1.4816548.

This blog post analyses, what exactly has changed.

Paragraph corrected describing the early days of the molecular layering origin of ALD

The publication (https://doi.org/10.1116/6.0000143) says that the first two and the last two sentences of the fourth paragraph of Section II, which describes molecular layering, are changed. 

The new, updated paragraph has not been recreated in full. To help the scientific ALD community, I have here attempted to recreate the corrected paragraph.

Saturday, 25 April 2020

Farewell to european-ald.net? Future of vph-ald.com?


Related to COST network "MP1402 - Hooking together European research in atomic layer deposition (HERALD)", https://www.cost.eu/actions/MP1402/#tabs|Name:overview, the european-ald.net website appears to no longer exist. When exactly did the website disappear, is not clear to the blog author, but it was not accessible on April 21, 2020 (see Twitter). The Internet archive contains some snapshots from the site, see e.g. https://web.archive.org/web/20190116224057/https://www.european-ald.net/.

The european-ald.net website had lots of useful contents. At the time of writing this blog post, it was unclear to the author if the vanishing is of permanent nature. Websites come with a cost and need maintenance, and it is understandable that they are not forever. If the european-ald.net is permanently gone, it is not the first useful ALD-related site to disappear: an earlier blog post discussed the ending of aldpulse.com (http://aldhistory.blogspot.com/2016/11/aldpulsecom-stops-and-moves-into-history.html). The Final Achievement Report of the HERALD COST action remains accessible on the COST site, https://www.cost.eu/actions/MP1402/#tabs|Name:overview. Thank you once more to Dr. Simon Elliott for setting up and skilfully coordinating the HERALD COST network, and to all who participated. To this blog's author, the HERALD COST network was certainly useful.

Related to the vph-ald.com website that collects together the materials of the Virtual Project on the History of ALD (VPHA), the same principles appear as for any other website.

Friday, 29 November 2019

Happy 45th anniversary, ALD in Finland - Aalto ALD OpenLearning platform opens

Exactly forty-five years ago, on November 29, 1974, the first patent on Atomic Layer Epitaxy (FIN 52359) was filed by Suntola and Antson.

Five years ago, the same day, materials of the exhibition materials of the "40 Years of ALD in Finland - Photos, Stories" (#FinALD40) were released for public; they are still accessible via the ALDCoE website and the VPHA website.

Today, the Aalto ALD OpenLearning site is opened for public. You can access it via the general link https://openlearning.aalto.fi/ and the direct link https://openlearning.aalto.fi/course/view.php?id=100.

Also today, at Aalto University an event is organized: November Networking - ALD at Aalto University event. We have 63 participants registered, webpage https://blogs.aalto.fi/catprofopen/ald-networking-nov-2019/.

Happy 45th anniversary, atomic layer deposition (ALD) in Finland!  

Thursday, 7 November 2019

VPHA status update 7.11.2019: November Networking ... and request to recommend ALD reviews

The email below was sent to 79 VPHA contributors and 70 prospective contributors.

From: Puurunen Riikka <riikka.puurunen@aalto.fi>
Sent: torstai 7. marraskuuta 2019 14.17
To: info @ vph-ald.com
Cc: Puurunen Riikka <>
Subject: VPHA status update 7.11.2019: November Networking ... and request to recommend ALD reviews

Dear VPHA contributors and prospective contributors,

With this email, I would like to update you recent progress around the interest area of the Virtual Project on the History of ALD (VPHA) since the previous VPHA status update on July 9.

1. “November Networking – ALD at Aalto University”. This is an event to be organized at Aalto University on November 29 afternoon, open for anyone to attend. In addition to local presentations and posters, there will be an international invited talk (Prof. Ruud van Ommen). If someone from the VPHA collaborators is interested to participate, you are most welcome to do so; poster presentation slots are still available (re-registration needed), and one can also come to network without any presentation. More info of the event and links below.

2. Request to recommend review articles on ALD. Along with November Networking – ALD at Aalto University (29.11.2019), the plan is to open an Aalto OpenLearning site related to Atomic Layer deposition, aimed to benefit the global ALD community. The site will start with small initially, mainly linking to existing contents, with the purpose to expand later in contents. The first original item to be created is a listing of recommended reviews on ALD.

To build a balanced, justified recommended reading list for ALD reviews, I welcome all VPHA contributors and prospective contributors (and others as well!) to write and share recommendations for their favourite ALD review(s) in recommended-ALD-reviews-evolving-file (it is a Google Docs file). More information in the blog post: http://aldhistory.blogspot.com/2019/11/advance-info-on-openlearning-site-and-request-to-recommend-reviews.html, reposted from Catalysis Professor’s Open.

Friday, 1 November 2019

Advance info on OpenLearning site on Atomic Layer Deposition + request to recommend ALD reviews

Advance info: On Nov 29, 2019, a new OpenLearning site is planned to open on atomic layer deposition (ALD) at the http://openlearning.aalto.fi platform. The site is meant to benefit the global ALD community and operate mostly in English; occasionally, the site may link to ALD learning materials on other languages. The site will grow with time and initially mainly link to contents that are already openly existing. 
Among the materials to be created for the site is a (living) list of recommended reviews. According to the list created in the Virtual Project on the History of ALD (VPHA, http://vph-ald.com*), link here (which continues lists published in 2005 in https://doi.org/10.1063/1.1940727 and in 2013 in https://doi.org/10.1063/1.4757907), over 200 reviews on ALD have been published. Two hundred reviews is obviously too many for any individual to read. A shorter list would be meaningful, skill keeping the full list easily accessible. 
I welcome anyone globally, who sees the value of the initiative to field, to help build a list of recommended reviews. Please recommend reviews that you think would be useful to include, and provide a brief justification with your recommendation in your own words. Please recommend only reviews authored by others than yourself or your close relatives.** All recommendations are to be collected together in one place called recommended-ALD-reviews-evolving-file (it is a Google Docs file). This file will be a living document and have © Authors (all rights reserved); it thus NOT allowed to copy contents to third-party sites without explicit permission by the respective authors***. 
The open learning site on ALD and recommended review list are both new initiatives. Hopefully the new learning site and materials can complement (not replace!) existing teaching materials and efforts and thereby help newcomers to enter the field of research and development in ALD. 
Riikka Puurunen, Espoo, Finland November 1, 2019
* Although the website ends with .com, although there is nothing commercial there. Another ending (.org, .net, …) could have in hindsight been more desciptive of the contents.
** This follows the policy in use e.g. in Wikipedia of not proposing a wikipage for yourself – if it is important, someone else will propose it.
*** Of all authors for the whole document, or of the authors of the text in question for smaller parts.
*********************
Virtual Project on the History of ALD (VPHA) - in atmosphere of Openness, Respect, and Trust

Wednesday, 14 August 2019

Available: VPHA poster at AVS ALD 2019

The VPHA poster on the ALD doctoral thesis list was updated, as planned, for the AVS 19th International Conference on Atomic Layer Deposition (ALD 2019) featuring the 6th International Atomic Layer Etching Workshop (ALE 2019)https://ald2019.avs.org/. Figure 1 of the poster below. The poster will be included in the AVS collections, and it is currently available via the http://vph-ald.com website.
  • Link to poster: here 
  • Link to abstract: here
  • Link to supplementary information - with full author list: here
The doctoral thesis collection is still certainly missing entries. Suggestions for additions are welcome. Please preferably provide the information via the Google Sheets file, which all can edit: VPHA-thesis-to-be-added.

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

Tuesday, 16 July 2019

Email communication to ALD 2019 poster coauthors, 2

Email communication related to poster at ALD 2019 https://ald2019.avs.org/, sent to 77 coauthors. 

From: Puurunen Riikka <...>
Sent: tiistai 16. heinäkuuta 2019 15.33
To: info@ vph-ald.com
Cc: Puurunen Riikka < ...>
Subject: VPHA ALD 2019 Poster updated version 16.7.2019

Dear ALD 2019 VPHA poster coauthors,

The VPHA poster to ALD 2019 https://ald2019.avs.org/ (Twitter: #ALDALE2019) has been now updated with new figures, as planned, and also with several added theses (1x the Netherland, 5 x Italy). Other small changes made to the poster are listed below. Many thanks to the collaborators who were active in proving and updating thesis info, for making the updated figures, and giving small comments.

Monday, 15 July 2019

Email communication to ALD 2019 poster coauthors

Email communication related to poster at ALD 2019 https://ald2019.avs.org/, sent to 77 coauthors. 

From: Puurunen Riikka <>
Sent: maanantai 15. heinäkuuta 2019 16.10
To: info@ vph-ald.com
Cc: Puurunen Riikka 
Subject: VPHA Poster draft to ALD 2019: final superficial check DL 16.7.2019 (noon GMT+3)

Dear ALD 2019 VPHA poster coauthors,

Please find attached a draft version of the VPHA thesis list poster for the ALD 2019 conference, https://ald2019.avs.org/ (Twitter: #ALDALE2019).

Tuesday, 9 July 2019

VPHA status update 9.7.2019: conferences, ALD thesis list, Zenodo, ORCID

The email below was sent to 79 VPHA contributors and 69 prospective contributors.

From: Puurunen Riikka < ...>
Sent: tiistai 9. heinäkuuta 2019 12.10
To: info@ vph-ald.com
Cc: Puurunen Riikka <... >; jonas.sundqvist <...>
Subject: VPHA status update 9.7.2019: conferences, ALD thesis list, Zenodo, ORCID / poster thesis list DL 11.7.

Dear VPHA contributors and prospective contributors, 

With this email, we would like to update you with the progress in Virtual Project on the History of ALD (VPHA) since the previous general VPHA status update on April 28

Major steps forward have been the following:   
·       As many contributors supported the idea of Zenodo sharing, and noone opposed it,  Zenodo community for the Virtual Project on the History of ALD has been created: https://zenodo.org/communities/vpha/. The community contains currently only one document, more to come. Before uploading more, we need to collect a list of ORCID identifiers of our contributors (more on that below). 
·       Poster on the doctoral thesis list on ALD has been created and presented at the EuroCVD-BalticALD 2019 conference (https://www.eurocvd-balticald2019.lu/). Twitter notes: #CVDALD2019 #VPHA

You can find below more information on the next steps in VPHA:

Saturday, 6 July 2019

Available: VPHA poster at EuroCVD-BalticALD 2019

Earlier post announced making available the abstract of VPHA-made poster at EuroCVD-BalticALD 2019 conference (https://www.eurocvd-balticald2019.lu/), "Overview of doctoral theses on Atomic Layer Deposition collected in the Virtual Project on the History of ALD". Now - since some days - you can also access the poster itself via the VPHA website (later, hopefully, Zenodo, too): http://vph-ald.com/VPHApublications/VPHA_Luxembourg2019_poster_v11_CLEAN.pdf. One of the two images from the poster below - otherwise the poster is covered with info of ~500 thesis worldwide, in a rather small font size.

Thanks to encounters at the conference, we have already received many additions to the thesis list.

Tuesday, 18 June 2019

Email communication to EuroCVD-BalticALD poster coauthors, 2

The message below was sent to 76 co-authors.  

From: Puurunen Riikka <...>
Sent: tiistai 18. kesäkuuta 2019 14.08
To: info@ ...vph-ald.com
...
Subject: Updated version of VPHA EuroCVD-BalticALD poster

Dear EuroCVD-BalticALD co-authors,

The poster has been updated with several missing theses (also some from Japan!), removing several duplicate theses, adding missing translated titles, correcting many typos of all sorts, updating the figures, and re-ordering the thesis list (year + alphabetical).

Friday, 14 June 2019

Email communication to EuroCVD-BalticALD poster coauthors

Email communication related to the poster at https://www.eurocvd-balticald2019.lu/sent to 76 co-authors.

From: Puurunen Riikka < ...>
Sent: perjantai 14. kesäkuuta 2019 19.33
To: info ... vph-ald.com
Subject: VPHA EuroCVD-BalticALD poster DRAFT for commenting / DL 17.6., please

Dear EuroCVD-BalticALD co-authors,

A draft of the VPHA poster to the EuroCVD-BalticALD conference (https://www.eurocvd-balticald2019.lu/) is finally ready for viewing and commenting to all - please find a pdf attached. (My apologies that the poster draft comes so late – just on time, still, I believe.) Abstract related to this poster can be viewed in: http://vph-ald.com/VPHApublications/VPHA_poster-abstract_EuroCVDbalticALD-2019.pdf

Available: VPHA abstract for EuroCVD-BalticALD 2019

The abstract of the VPHA poster for the EuroCVD-BalticALD conference in Luxembourg (https://www.eurocvd-balticald2019.lu/) has just been made available via the VPHA website. Title: "Overview of doctoral theses on Atomic Layer Deposition collected in the Virtual Project on the History of ALD". You can access the abstract here: http://vph-ald.com/VPHApublications/VPHA_poster-abstract_EuroCVDbalticALD-2019.pdf.

Monday, 27 May 2019

New Zenodo community: Virtual Project on the History of ALD (VPHA)

In a recent VPHA status update, sharing VPHA abstracts and other materials via Zenodo.org was proposed. This suggestion received wide support.

To enable the sharing of the abstracts and later other works, a "community" has been created in https://zenodo.org. The name of the community - not surprisingly - is "Virtual Project on the History of ALD (VPHA)", link: https://zenodo.org/communities/vpha/.



Sunday, 28 April 2019

VPHA status update 28.4.2019 - poster abstracts accepted + Zenodo sharing?

The email below was sent to 78 VPHA contributors and 69 prospective contributors.  

From: Puurunen Riikka < >
Sent: sunnuntai 28. huhtikuuta 2019 10.44
Subject: VPHA status update April 2019 - poster abstracts accepted + Zenodo sharing?

Dear VPHA contributors and prospective contributions,

Since the previous general VPHA status update on January 17, we submitted two abstracts for posters at coming conferences - 1st abstract to EuroCVD-BalticALD in June in Luxembourg and 2nd abstract to ALD 2019 in Bellevue, Washington in July. It is my pleasure to inform you with this email that both abstracts have been accepted for presentation.

We will start to prepare the posters likely in May - expect more communication on this later. The purpose is to continue building on the ALD doctoral thesis list so that it will be as complete as possible (up to the end of 2018) when the posters are made, and at the same time it will allow conference participants to view it and notice missing items and help us make it still more complete for the review article which is being planned.

Related to the two abstracts and as well longer-plan archiving of VPHA, we propose to share the abstracts publicly already.

Friday, 8 March 2019

Millennium Technology Prize to Tuomo Suntola - photos Millennium Talks May 23, 2018

In the an earlier post, photos were shared from the Millennium Technology Prize Gala on May 22, 2018, where Tuomo Suntola received the prize for atomic layer deposition technology.  This post continues from where the previous post (Feb 10) left, and shares photos from the open lecture that Suntola gave on May 23, 2018, at Aalto University.

What is atomic layer deposition (ALD)? The 2018 Millennium Technology Prize winner Tuomo Suntola explains the contents of the lecture to come. (Photo: Riikka Puurunen, 23.5.2018)

Saturday, 16 February 2019

VPHA brief communication / ALD 2019 poster abstract SUBMITTED

The message below was sent to 78 VPHA contributors.

From: Puurunen Riikka < >
Sent: 16. helmikuuta 2019 6:26
To: info at vph-ald.com
Subject: VPHA brief communication - ALD 2019 poster abstract SUBMITTED 15.2.2019

Dear VPHA contributors,

For your information, an abstract has been submitted yesterday to the ALD 2019 conference https://ald2019.avs.org/ (Twitter: #ALDALE2019) in Bellevue, Washington, USA entitled “Overview of doctoral theses on Atomic Layer Deposition worldwide - outcome of the Virtual Project on the History of ALD”.