W
William J. Chappell
Researcher at Purdue University
Publications - 181
Citations - 5722
William J. Chappell is an academic researcher from Purdue University. The author has contributed to research in topics: Resonator & Band-pass filter. The author has an hindex of 41, co-authored 181 publications receiving 5295 citations. Previous affiliations of William J. Chappell include University of Michigan.
Papers
More filters
Patent
Controlled self assembly of anisotropic conductive adhesives based on ferromagnetic particles
TL;DR: In this paper, an anisotropic conductive adhesive (ACA) arrangement is disclosed, including a thermosetting resin disposed between a connector of a first structure and a connectors of a second structure, and a plurality of ferromagnetic conductive particles dispersed through the thermoset resin.
Journal ArticleDOI
Fabrication and Properties of an Anisotropic TiO2 Dielectric Composite
Zachary N. Wing,John W. Halloran,Xun Gong,Wing Han She,Eric E. Hoppenjans,William J. Chappell +5 more
TL;DR: In this paper, thermal co-extrusion was employed to fabricate an anisotropic dielectric composite based on titanium dioxide with a microcellular architecture with 50 μm macropore channels aligned to create unidirectional porosity.
Journal ArticleDOI
Analysis of Failure Rate by Column Distribution in Magnetically Aligned Anisotropic Conductive Adhesive
TL;DR: In this paper, the failure rate of z-axis interconnects using magnetically aligned anisotropic conductive adhesives (ACAs) is analyzed for their applicability for small pad sizes.
Journal ArticleDOI
3-D Integration of 10-GHz Filter and CMOS Receiver Front-End
Tae-Young Choi,Hasan Sharifi,Hjalti H. Sigmarsson,William J. Chappell,Saeed Mohammadi,Linda P. B. Katehi +5 more
TL;DR: In this article, a 10 GHz filter/receiver module is implemented in a novel 3D integration technique suitable for RF and microwave circuits, which is achieved through bonding a high-Q evanescentmode cavity filter onto the silicon wafer using screen printable conductive epoxy.
Proceedings ArticleDOI
Variable dielectric constants by structured porosity for passive ceramic components
TL;DR: In this paper, different densities within a ceramic are used to provide a wide, continuous range of cofirable dielectric constants for high frequency applications, and large scale aligned porosity using a microcellular structure allows for an extremely wide range of dielectrics constants, ranging from 90 to 9.15, while maintaining a low loss tangent.