| 摘要 |
PURPOSE: To enhance the bonding strength of two substrates when the substrates are stuck to each other to obtain a stuck disk substrate used for a digital video disk, etc. CONSTITUTION: In this stuck disk substrate obtd. by sticking two substrates 11, 12 to each other with an adhesive layer 31, the substrate 11 is an information side substrate with formed pits 12 and the substrate 21 has recesses 23 for fixation formed in the sticking side surface 22. |
