Many ALD researchers will recognise M. Pessa from early ALD publications. The first scientific article published in Finland on ALD in 1980 (Ahonen et al.) is co-authored by Pessa, and so is the review article in Journal of Applied Physics in 1986, which has been chosen to define the end year of VPHA. Both articles were featured and described in the recommended reading list of early ALD publications in the VPHA JVSTA focused review, http://dx.doi.org/10.1116/1.4971389 (open access).
Pessa has been further related to two puzzling questions which I have encountered during VPHA. I believe that both questions have received decent answers.
- When I started to work at VTT Technical Research Centre of Finland in 2004, I soon learned from a colleague who had worked at TUT that there is (/was?) an old ALD reactor displayed labelled as "the world's first ALE reactor". When I first heard this, I admit that I was very surprised. How could this be true? ALE was invented in Espoo by Suntola, after all.
- I have - of course - been curious of when the Finnish and Soviet ALD scientists first met. When during the past few years I presented the question to several long-term scientists in Finland who were active already in 1990, I got always basically the same answer: the first meeting was at the ALE-1 conference in 1990 in Helsinki, where these researchers "just appeared". How come they "just appeared" there?!? How did they find their way to the conference?
|Copy of the cover of book of programme and abstracts, ALE-1 conference, Espoo/Helsinki, Finland, June 13-15, 1990.|