The *1998 European Solid State Device Research Conference Proceedings (ESSDERC)* gathers technical research presented at the 1998 European Solid State Device Research Conference, a major forum for advances in semiconductor device science and microelectronic engineering. The volume preserves papers on solid-state devices, semiconductor materials, fabrication processes, device characterization, modeling, and related technology developments relevant to late-1990s electronics research. As a conference proceedings publication, this work is best understood as a specialized research collection for libraries, academic institutions, and technical readers seeking primary literature from the ESSDERC program. It offers a snapshot of contemporary priorities in device physics, process technology, and microelectronics at the time of publication.