Advanced Silicon Etch (ASE) is a deep reactive ion etching (DRIE) technique to rapidly etch deep and high aspect ratio structures in silicon.
He won four Hertzog prizes (in 1947, 1956, 1969 and 1980), four Hofmeyer prizes (in 1954, 1956, 1966 and 1980), two CNA Prizes (in 1964 and 1980), a prize from the "Drie-Eeue Stigting" ("Three Centuries Foundation") in 1956, the Louis Luyt-prize in 1980 and the Gustav Preller prize for literary criticism in 1985.
Yelena won the Vita Award for Best Script (1998–99) while Drie Susters Twee (Three Sisters), was named Best Production for the same year.