发明名称 METHOD OF MANUFACTURING A FLASH MEMORY DEVICE
摘要 <p>A method for fabricating a transistor of a flash device is provided to avoid generation of a step during an etch process performed after a second conductive layer is formed, by forming a contact hole in a dielectric layer of a transistor and by irradiating ultraviolet rays to neutralize the negative polarity of a residual dielectric layer. A first conductive layer(104) and a dielectric layer(106) are formed on a semiconductor substrate(100). A contact hole is formed in the dielectric layer to expose a part of the first conductive layer. Ultraviolet ray is irradiated to the semiconductor substrate. A second conductive layer(108) is formed on the dielectric layer and the first conductive layer. An etch process is performed to planarize the upper part of the second conductive layer. A capping layer pattern can be formed on the dielectric layer. The dielectric layer can be etched to form a contact hole by using the capping layer pattern as a mask.</p>
申请公布号 KR20080081399(A) 申请公布日期 2008.09.10
申请号 KR20070021284 申请日期 2007.03.05
申请人 HYNIX SEMICONDUCTOR INC. 发明人 KIM, HYUN SUB
分类号 H01L27/115 主分类号 H01L27/115
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