Results 211 to 220 of about 4,143,667 (234)
Some of the next articles are maybe not open access.
Applied Mechanics and Materials, 2012
This paper proposes a new slicing approach that uses multiple sets of cutting planes to automatic determine parting lines and boundaries of undercuts of complex CAD parts for the multi-piece molds design. In this algorithm, the group of feasible parting directions is first collected and three sets of cutting planes are then formed based on the primary ...
Nguyen Huu Quang, Alan C. Lin
openaire +1 more source
This paper proposes a new slicing approach that uses multiple sets of cutting planes to automatic determine parting lines and boundaries of undercuts of complex CAD parts for the multi-piece molds design. In this algorithm, the group of feasible parting directions is first collected and three sets of cutting planes are then formed based on the primary ...
Nguyen Huu Quang, Alan C. Lin
openaire +1 more source
2015 IEEE 65th Electronic Components and Technology Conference (ECTC), 2015
This paper presents the first demonstration of a “zero-undercut” precision formation of ultrafine-line copper conductor patterns for redistribution layers (RDL) and thin film RF passives. This is accomplished by using a highly-anisotropic and uniform copper plasma-etching process to remove the seed layer with no lateral etching of the copper patterns ...
P. Markondeya Raj +6 more
openaire +1 more source
This paper presents the first demonstration of a “zero-undercut” precision formation of ultrafine-line copper conductor patterns for redistribution layers (RDL) and thin film RF passives. This is accomplished by using a highly-anisotropic and uniform copper plasma-etching process to remove the seed layer with no lateral etching of the copper patterns ...
P. Markondeya Raj +6 more
openaire +1 more source
A model for tidewater glacier undercutting by submarine melting [PDF]
Geophysical Research Letters, 2017 DAS is supported by a UK Natural Environmental Research Council PhD studentship (NE/L501566/1). We acknowledge NERC Grants NE/K015249/1 and NE/K014609/1 awarded to PWN and AJS respectively.Dynamic change at the marine-terminating margins of the Greenland
Andrew J. Sole +2 more
exaly +2 more sources
An Analysis of Undercut Conditions and of Appearance of Contact Lines Envelope Conditions of Gears
Journal of Mechanical Design, 1978Necessary conditions of undercutting of gears, necessary and sufficient conditions of the existence of the contact lines envelope on the generating surface are found. The conditions are studied under which the contact lines envelope appears in the vicinity of the given contact point of the generating surface with beginning of undercutting ...
openaire +1 more source
International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering, 1995
AbstractThe effect of undercutting on the electrical parameters of general single and coupled quasi‐TEM lines in a multilayered dielectric is studied by an efficient quasistatic numerical method. Results are presented for characteristic impedance, propagation constant, and attenuation constant in single lines; two symmetrical coupled lines; and a four ...
openaire +1 more source
AbstractThe effect of undercutting on the electrical parameters of general single and coupled quasi‐TEM lines in a multilayered dielectric is studied by an efficient quasistatic numerical method. Results are presented for characteristic impedance, propagation constant, and attenuation constant in single lines; two symmetrical coupled lines; and a four ...
openaire +1 more source
2019
With the growth of cities, the demands for building large underground space become increasingly intense. However, the traditional open-cut and undercut methods have certain limitations and are hard to fully satisfy the complicated boundary conditions of urban areas.
Y. Gao, P. Cheng, Y. Li, C. Feng
openaire +1 more source
With the growth of cities, the demands for building large underground space become increasingly intense. However, the traditional open-cut and undercut methods have certain limitations and are hard to fully satisfy the complicated boundary conditions of urban areas.
Y. Gao, P. Cheng, Y. Li, C. Feng
openaire +1 more source
Positive tone i-line photoresist with controlled undercut profile for advanced packaging
Advances in Patterning Materials and Processes XL, 2023Walter Liu +4 more
openaire +1 more source
Plasma processes set to etch finer lines with less undercutting
Microelectronics Reliability, 1978openaire +1 more source
Generalized model of undercutting of involute spur gears generated by rack-cutters
Mechanism and Machine Theory, 2013Ognyan Alipiev
exaly