Appeal 2006-2650
Application 10/011,886
7) Kasami discloses that, when the reflective layer (5) is silver, an
undesirable reaction may take place with the sulfur in an adjacent
layer, such as ZnS-Si02. Therefore, the adjacent layer should not
contain sulfur, or a non-corrosive Ag alloy should be used. (Col. 12,
ll. 28-55 and col. 10, ll. 32-41).
8) Kasami discloses the use of various materials for the recording layer
(2) including "Ge-Te . . . . with or without gaseous additions, such as
nitrogen or oxygen." (Col. 12, ll. 1-10).
9) Kasami teaches that suitable materials for the dielectric crystallization
promotion layers (3, 4) include carbides, nitrides and oxides of
various metals and metalloids, such as Ta, Si, Al, and others, with Si-
C, Si-0-C, Si-N, Si-0-N, Si-0, Si-0-C-N and Al-N being particularly
preferred and may be at least 2 nm thick. (Col. 7, l. 49-col. 8, l. 61).
The materials are dielectrics which inherently act as barrier layers.
10) Kasami teaches that “the crystallization promoting layers 3, 4 may be
the same layer operating simultaneously as the dielectric layers. (Col.
7, ll. 49-51).
11) Kasami teaches that “[f]or recording and/or reproducing the optical
recording medium, . . . , the short wavelength laser, with the
wavelength of 380 nm to 420 nm, or a so-called blue laser or a blue
purple laser, is used as the recording and/or reproducing laser. The
light source for this recording and/or reproducing laser may be any
suitable light source provided that it can emit the laser of the
wavelength in question. Examples of the light source include a
semiconductor laser and a gas laser.” (Col. 15, ll. 15-24).
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: September 9, 2013