Relatively thick (420 nm) InP slabs are employed to improve the thermal and mechanical characteristics. ... (6 nm, each) was embedded in the middle of the InP slab. Wet etching. H 3 PO 4:H 2 O 2: ...

TARRAGONA, Spain, Dec. 2 (UPI) --Markings found on a schist slab in Spain depict a paleolithic campsite, say researchers who suggest the engraving is the earliest depiction of social gathering.