POGO PIN PARASITIC IMPEDANCE CHARACTERISATION AND INFLUENCE ON PMIC SEMICONDUCTOR EVALUATION PROCES

Dejan Milošević, Miodrag Arsić, Dragan Denić, Dragan Živanović

DOI Number
10.22190/FUACR1603159M
First page
159
Last page
169

Abstract

During the semiconductor evaluation of modern Power Management Integrated Circuit (PMIC) devices, high quality Zero-Insertion-Force (ZIF) sockets must be used in order to measure many semiconductor parts with a single dedicated hardware. The most critical part of socket is contact between the device terminal and PCB. There are couples of technology processes that can provide solid contact between the device and the rest of the circuit, but the most common technology uses so called Pogo-pin, also called spring pin. Pogo pin must have as small as possible parasitic impedance, since the signal frequency and the signal power transfer between the PMIC terminal and the rest of the circuit must be without distortions, in order to obtain correct measurement results of tested devices. In some cases, influence of Pogo-pin parasitic impedance can lead to the partial damage of the device internal structure. This article should point to the potential problems using simulation results and should describe the simple procedure of Pogo-pin impedance characterization using network analyzer with appropriate aperture. Couples of measurements results from different Pogo-pin suppliers are also shown in this example with some practical results.

Keywords

PMIC semiconductor, Pogo-pin, Parasitic Impedance, Simulation, Network analyzer, ZIF socket

Full Text:

PDF

References

Ironwood electronics, "SBT Contact, P-P185A, AC measurement and results," http://www.ironwoodelectronics.com/catalog/Content/Drawings/PP185_AC_data.pdf, 2012.

Ironwood electronics, "SBT Contact, P-P185A, DC measurement and results," http://www.ironwoodelectronics.com/catalog/Content/Drawings/PP185_DC_data.pdf, 2012.

Emulation Technology, "High performance 0.5mm Pitch Pogo Pin Test Socket," 2009.

Tyco Electronics, "Measurement report 619134-1 Board to Board Connector 10mm Height," http://www.te.com/commerce/DocumentDelivery/, 2007.

R. W. Erickson, D. Maksimovic, Fundamentals of Power Electronics. Kluwer Academic Publishers, 2004.

S. Prabhakaran, C. R. Sullivan, "Impedance-analyzer measurement of high-frequency power passives techniques for high power and low impedance," IEEE Industry Applications Society Annual Meeting, pp. 1360–1367, 2002.

B. H. Evenblij, J. A. Ferreira, "A physical method to incorporate parasitic elements in a circuit simulator based on the partial inductance concept," in Proceedings of the 32nd Annual Power Electronics Specialists Conf., 2001.

Sam Davis, PMIC Integrates Multiple LDOs, Buck Controllers/Regulators For Portable Systems. Power Electronics, 2014.




DOI: http://dx.doi.org/10.22190/FUACR1603159M

Refbacks

  • There are currently no refbacks.


Print ISSN: 1820-6417
Online ISSN: 1820-6425