Semiconductor device manufacturing: process – Making device or circuit emissive of nonelectrical signal – Including integrally formed optical element
Reexamination Certificate
2005-12-14
2009-02-03
Sarkar, Asok K (Department: 2891)
Semiconductor device manufacturing: process
Making device or circuit emissive of nonelectrical signal
Including integrally formed optical element
C257S098000, C257SE21024, C438S780000, C438S795000
Reexamination Certificate
active
07485481
ABSTRACT:
An organic electroluminescent device has an anode formed on a substrate, a hole injection layer formed on the anode, wherein the hole injection layer is subjected with an electron shower treatment, an emitting layer formed on the hole injection layer, and a cathode formed on the emitting layer. With the electron shower treatment, impurities from the hole injection layer can be removed, and electrical surface resistance of the hole injection layer cab be increased so that performance and life characteristics of the organic electroluminescent device are improved.
REFERENCES:
patent: 6396209 (2002-05-01), Kido et al.
patent: 2004/0137652 (2004-07-01), Ishii
Kim Mu-Gyeom
Kim Sang-Yeol
Lee Tae-Woo
Park Jong-Jin
Bushnell , Esq. Robert E.
Samsung SDI & Co., Ltd.
Sarkar Asok K
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