A composite structure is formed so as to contain aluminum and silicon or silicon/germanium. The composite structure comprises pillar-shaped members containing aluminum and a region containing silicon or silicon/germanium and surrounding the pillar-shaped members. The structure contains silicon or silicon/germanium...http://www.google.com/patents/US7282268?utm_source=gb-gplus-sharePatent US7282268 - Structure, method of manufacturing the same, and device using the same
