Gunter Dr Rer Nat Raab

Method of doping a semiconductor layer

Automatic charge metering of telephone calls

Apparatus for the preparation of a compound or an alloy

Method for detecting a leak in a reaction tube when forming a IIIA-VB compound

Process for the production of III-V compounds

Verfahren zur herstellung von aiiibvverbindungen, insbesondere galliumphosphid

Apparatus for producing a compound or alloy

Verfahren zur herstellung von am schmelzpunkt zersetzlichen verbindungen und legierungen A process for producing the melting point decomposable compounds and alloys

A process for producing the melting point decomposable compounds and alloys

Vorrichtung zum herstellen einer verbindung oder legierung Apparatus for producing a compound or alloy