TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The mold is made from silicon.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The glasslike carbon has a minimum width dimension of the at least one surficial convex portion of (greater than or equal to100 nm - less than 1 microns, preferably greater than or equal to50 nm - less than 1 microns), when the thermosetting resin has a mold shrinkage ratio of (3 - 7, preferably 3 - 5.5)%, respectively.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The thermosetting resin has a mold shrinkage ratio of (3 - 7, preferably 3 - 5.5)%. EXAMPLE - A glasslike carbon having at least one convex portion on its surface was prepared as follows. The thermosetting resin used was PL-4807 (RTM: a liquid phenolic resin), which was combined with hexamethylenetetramine (0.1 wt.%). The viscosity of the resulting resin was adjusted by heating the resin at 70degreesC under reduced pressure of 100 mm Hg. The heating time for the viscosity control was 2 hours. The resin had a viscosity of 15 P, a non-volatile content of (75 wt.%), and a mold shrinkage ratio of 7.5. For the comparative resin, the heating time for adjusting the viscosity was 1 hour; and the resin had a viscosity of 6 P, a non-volatile content of (71 wt.%) and a mold shrinkage ratio of 8.2. The mold used was a silicon wafer having trenches formed by photolithography. Each of the trenches had length of 2000 microns, a depth of 100 nm and a width of 50, 100, 200, or 600 nm. Initially, the thermosetting resin was poured onto the molding surface of the mold while feeding 0.2 g of the resin per 10 mm2 of the surface of the mold. The resin was then cured by heating at 7degreesC for 48 hours. The cured resin was pulled out from the mold. The demolded resin was further subjected to curing at 200degreesC in air for 48 hours. The cured resin was then carbonized by heating the resin to 1000degreesC at an elevation rate of 5degreesC per hour and holding to 1000degreesC for 5 hours in an atmosphere of nitrogen gas. The resin had a shrinkage ratio of 20% after carbonization. The formed surfaces of the resulting glasslike carbons were observed and evaluated under a scanning electron microscope. The charge of the resin upon pouring into the mold, and the breakage of the resin upon removal from the mold were evaluated. The results for breakage of the test/comparative resins with respect to upper column for resin charge and lower column for resin removal, for the width of 50, 100, 200 and 600 nm were: the resin was satisfactorily charged/the resin was fully unsatisfactorily charged; and the resin was not broken/the resin was fully broken, respectively. Thus, by using the resins having a viscosity of less than or equal to200 P and a mold shrinkage ratio of (3 - 7 and 3 - 5.5)%, the glasslike carbons formed in a mold had trenches of 100 nm and 50 nm wide and showed no breakage in the convex portions, respectively. The glasslike carbons showing no breakage had convex portions having a rectangular profile of a height of 80 nm and a length of 1600 microns on their surface. The centerline average roughness of the convex portions was found to be 0.9 nm.