Zobrazeno 1 - 10
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pro vyhledávání: '"Daniel Hao-Tien Lee"'
Autor:
John C.H. Lin, Daniel Hao-Tien Lee
Publikováno v:
SPIE Proceedings.
Mostly, crown-shaped DRAM capacitor is formed by depositing a series of polysilicon and silicon oxide in a recess followed by etching back to form the vertical side-wall. In this paper, we are proposing a new method which is directly using crown-shap
Autor:
Daniel Hao-Tien Lee, Chang-Ming Dai
Publikováno v:
SPIE Proceedings.
The relationships of contact angle among different substrates, the role of dehydrating bake on photoresist profile and the relationship between contact angle and photoresist profile are addressed in this paper. Generally speaking, when the HMDS primi
Publikováno v:
SPIE Proceedings.
Three types of dies on the wafer including dies on wafer edge, dies adjacent to testkey patterns, and dies with asymmetric chip layout have been identified for mistilting on the lithography exposure processes. There are several approaches i.e. dummy
Publikováno v:
SPIE Proceedings.
The lithography processes for the metal layers of stacked DRAM have normally been considered as one of the most important steps to determine the chip yield performance. The severe topography step-height on the metal resist processes normally leads to
Autor:
Daniel Hao-Tien Lee, Gwo-Yuh Shiau
Publikováno v:
SPIE Proceedings.
The stacked cell design of DRAM processes for lithography considerations has suffered severe topography step-height and unsmooth surface issues. In addition, the stability and uniformity control of thin film processes on the backend process can affec
Publikováno v:
SPIE Proceedings.
I-line lithography, together with single-layer resist processes, practically, have been limited to 0.45 micrometers design rules in the semiconductor industry. For design rules of 0.4 micrometers and below, several contrast enhanced methods have been
Publikováno v:
SPIE Proceedings.
The striation problem on 8' topographical wafers is reported. The striation on topographical wafers is not observed on planar wafers. The degree of striation increases with topographical step-height for the traditional photoresist dispense method. In
Autor:
Ronfu Chu, Daniel Hao-Tien Lee
Publikováno v:
SPIE Proceedings.
Proximity effect, in general, is a major concern for submicron lithography. There are two kinds of proximity effect, i.e. global and local proximity effects, normally observed in the submicron lithography processes. Local proximity effect is occurred
Publikováno v:
Japanese Journal of Applied Physics. 33:7001
The resist development mechanism of both spray puddle and stream puddle methods was addressed in this paper. Two mechanisms were proposed: the pressure effect in which the spray pressure contributes to the development rate of line/space structure lay
Publikováno v:
Japanese Journal of Applied Physics; December 1994, Vol. 33 Issue: 12 p7001-7001, 1p