Selenia Industrie Elettroniche Associate S.p.a.

Maurizio Di Bona

Antonio Cetronio

Sergio Moretti

A method of making semiconductive developments, especially MESFETs, which applies a template to a surface of the substrate previously formed with circuit elements in alignment with these elements and so bonds the template to the substrate that the template can be utilized as a holder for the substrate. The rear surface is then coated with a resist and a second template aligned externally with the first utilizing markings exterior to the substrate to form the structure on the rear surface which can include throughholes for a metal deposit extending through the preferably GaAs substrate.

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Alvito, Italy

Maurizio Di Bona