| http://www.w3.org/ns/prov#value | - The procedure for the adhesion is that a refractory metal, such as zirconium, is deposited by sputtering on a flat surface to be adhered, and tightly stacked onto another substrate made of silicon, silicon dioxide or silicon having a silicon dioxide film thereto, and the stacked wafers are heated in an atmosphere of argon containing 4% hydrogen at approximately 650??? C. for approximately 2 hours.
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