A flip-chip interconnect configuration with coplanar strip (CPS) lines on printed circuit boards (PCBs) is reported for millimeter-wave applications. For CPS lines, the signal and ground electrodes both lie on the top surface of a chip or substrate. The flip-chip configuration was designed and implemented using a test chip on a dielectric board. Geometrical parameter analysis was carried out using full-wave simulation and equivalent circuit model for wideband performance. The chip was connected to the board using solder bumps. For a typical flip-chip assembly, the measured insertion loss is less than 3dB for frequencies of up to 35GHz and the return loss is higher than 15dB for frequencies of up to 29GHz using CPS flip-chip configuration.

1.
Burns
,
W. K.
,
Howerton
,
M. M.
,
Moeller
,
R. P.
,
Krathenbuhl
,
R.
,
McElhanon
,
R. W.
, and
Greenblatt
,
A. S.
, 1999, “
Low Drive Voltage, Broad-Band LiNbO3 Modulators With and Without Etched Ridges
,”
J. Lightwave Technol.
0733-8724,
17
, pp.
2551
2555
.
2.
Heinrich
,
W.
,
Jentzsch
,
W. A.
, and
Richter
,
W.
, 2001, “
Flip-Chip Interconnects for Frequencies Up to W-Band
,”
Electron. Lett.
0013-5194,
37
, pp.
180
181
.
3.
Cohn
,
S. B.
, 1969, “
Slot Line on a Dielectric Substrate
,”
IEEE Trans. Microwave Theory Tech.
0018-9480,
17
, pp.
768
778
.
4.
Knorr
,
J. B.
, and
Kuchler
,
K.
, 1975, “
Analysis of Coupled Slots and Coplanar Strips on Dielectric Substrate
,”
IEEE Trans. Microwave Theory Tech.
0018-9480,
23
, pp.
541
548
.
5.
Gupta
,
W. K. C.
,
Garg
,
I.
,
Bahi
,
I.
, and
Bhartia
,
P.
, 1996,
Microstrip Lines and Slotlines
,
2nd ed.
,
Artech House
,
Boston
.
6.
Pozar
,
D. M.
, 1998,
Microwave Engineering
,
Wiley and Sons
,
New York
.
7.
HFSS (high frequency structure simulator), Version 9, Ansoft Corporation, Pittsburgh, PA.
11.
Agilent Technologies
, Palo Alto, CA, http://www.agilent.comhttp://www.agilent.com.
13.
GGB Industries, Inc
, Naples, FL, http://www.ggb.comhttp://www.ggb.com.
14.
User’s guide of Agilent Technologies 8722ES Network Analyzer: Calibrating for Increased Measurement Accuracy, http://www.agilent.comhttp://www.agilent.com.
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