2.
    发明专利
    未知

    公开(公告)号:DE50203431D1

    公开(公告)日:2005-07-21

    申请号:DE50203431

    申请日:2002-10-29

    Abstract: The invention relates to a process for the production of a semiconductor apparatus, in which an etch step is carried out after an exposure step using light having a wavelength of 193 nm and a development step, the etch gas used containing an added reactive monomer. As a result, polymerization of the surface and hence sidewall passivation of the photoresist used are achieved.

    4.
    发明专利
    未知

    公开(公告)号:DE10224217A1

    公开(公告)日:2003-12-18

    申请号:DE10224217

    申请日:2002-05-31

    Abstract: A photosensitive resist ( 100 ) for coating on a semiconductor substrate or a mask comprises a photo acid generator (D), a solvent (E) and at least two different base polymers, of which a first base polymer comprises cycloaliphatic parent structures (A) which substantially absorb incident light at 248 nm and are substantially transparent to incident light at 193 nm, and a second base polymer comprises aromatic parent structures (B) which substantially absorb incident light at 193 nm and are substantially transparent to incident light at 248 nm. If such a resist ( 100 ) is applied in a coat thickness of from 50 to 400 nm to a substrate and the proportion of the second base polymer having the aromatic parent structure is between 1 and 25 mol %, a relatively high structure contrast, better stability to etching and a reduction of defects are advantageously achieved in an exposure at a wavelength of 193 nm. Exposure over the entire depth range of the resist ( 100 ) is ensured thereby.

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