Non-destructive analysis on flip chip package with TDR (time domain reflectometry) and SQUID (superconducting quantum interference device)

2003 ◽  
Author(s):  
Lihong Cao ◽  
H.B. Chong ◽  
J.M. Chin ◽  
R.N. Master
Keyword(s):  
Time Domain ◽  
Quantum Interference ◽  
Flip Chip ◽  
Time Domain Reflectometry ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference ◽  
Destructive Analysis ◽  
Non Destructive

Advanced Non-Destructive Fault Isolation Techniques for PCB Substrates Using Magnetic Current Imaging and Terahertz Time Domain Reflectometry

2018 ◽  
Author(s):  
Daechul Choi ◽  
Yoonseong Kim ◽  
Jongyun Kim ◽  
Han Kim
Keyword(s):  
Time Domain ◽  
Quantum Interference ◽  
Flip Chip ◽  
Imaging System ◽  
Time Domain Reflectometry ◽  
Fault Isolation ◽  
Magnetic Current ◽  
Isolation Techniques ◽  
Super Conducting ◽  
Non Destructive

Abstract In this paper, we demonstrate cases for actual short and open failures in FCB (Flip Chip Bonding) substrates by using novel non-destructive techniques, known as SSM (Scanning Super-conducting Quantum Interference Device Microscopy) and Terahertz TDR (Time Domain Reflectometry) which is able to pinpoint failure locations. In addition, the defect location and accuracy is verified by a NIR (Near Infra-red) imaging system which is also one of the commonly used non-destructive failure analysis tools, and good agreement was made.

Non-Destructive Open Fault Isolation in Flip-Chip Devices with Space-Domain Reflectometry

2013 ◽  
Author(s):  
W. Qiu ◽  
M.S. Wei ◽  
J. Gaudestad ◽  
V.V. Talanov
Keyword(s):  
Quantum Interference ◽  
Flip Chip ◽  
Time Domain Reflectometry ◽  
Fault Isolation ◽  
Superconducting Quantum Interference Device ◽  
Isolation Method ◽  
Space Domain ◽  
Open Faults ◽  
Scanning Squid ◽  
Non Destructive

Abstract Space-domain reflectometry (SDR) utilizing scanning superconducting quantum interference device (SQUID) microscopy is a newly developed non-destructive failure analysis (FA) technique for open fault isolation. Unlike the conventional open fault isolation method, time-domain reflectometry (TDR), scanning SQUID SDR provides a truly two-dimensional physical image of device under test with spatial resolution down to 30 μm [1]. In this paper, the SQUID SDR technique is used to isolate dead open faults in flip-chip devices. The experimental results demonstrate the capability of SDR in open fault detection

Super-Conducting Quantum Interference Device Technique: 3-D Localization of a Short within a Flip Chip Assembly

2001 ◽  
Author(s):  
Kendall Scott Wills ◽  
Omar Diaz de Leon ◽  
Kartik Ramanujachar ◽  
Charles P. Todd
Keyword(s):  
Form Factor ◽  
Failure Analysis ◽  
Time Domain ◽  
Quantum Interference ◽  
Flip Chip ◽  
Time Domain Reflectometry ◽  
Interfacial Region ◽  
Precise Localization ◽  
Super Conducting ◽  
Accuracy Of Measurement

Abstract In the current generations of devices the die and its package are closely integrated to achieve desired performance and form factor. As a result, localization of continuity failures to either the die or the package is a challenging step in failure analysis of such devices. Time Domain Reflectometry [1] (TDR) is used to localize continuity failures. However the accuracy of measurement with TDR is inadequate for effective localization of the failsite. Additionally, this technique does not provide direct 3-Dimenstional information about the location of the defect. Super-conducting Quantum Interference Device (SQUID) Microscope is useful in localizing shorts in packages [2]. SQUID microscope can localize defects to within 5um in the X and Y directions and 35um in the Z direction. This accuracy is valuable in precise localization of the failsite within the die, package or the interfacial region in flipchip assemblies.

Advanced Fault Isolation Technique Using Electro-Optical Terahertz Pulse Reflectometry (EOTPR) for 2D and 2.5D Flip-Chip Package

2012 ◽  
Author(s):  
Lihong Cao ◽  
Manasa Venkata ◽  
Meng Yeow Tay ◽  
Wen Qiu ◽  
J. Alton ◽  
...  
Keyword(s):  
Time Domain ◽  
Flip Chip ◽  
Time Domain Reflectometry ◽  
Fault Isolation ◽  
Experimental Results ◽  
Terahertz Pulse ◽  
Isolation And Identification ◽  
Isolation Technique ◽  
Non Destructive

Abstract Electro-optical terahertz pulse reflectometry (EOTPR) was introduced last year to isolate faults in advanced IC packages. The EOTPR system provides 10μm accuracy that can be used to non-destructively localize a package-level failure. In this paper, an EOTPR system is used for non-destructive fault isolation and identification for both 2D and 2.5D with TSV structure of flip-chip packages. The experimental results demonstrate higher accuracy of the EOTPR system in determining the distance to defect compared to the traditional time-domain reflectometry (TDR) systems.

Localization of Dead Open in a Solder Bump by Space Domain Reflectometry

2012 ◽  
Author(s):  
David P. Vallett ◽  
Daniel A. Bader ◽  
Vladimir V. Talanov ◽  
Jan Gaudestad ◽  
Nicolas Gagliolo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Failure Analysis ◽  
Quantum Interference ◽  
Flip Chip ◽  
Solder Bump ◽  
Frequency Range ◽  
Superconducting Quantum Interference Device ◽  
Space Domain ◽  
Non Destructive ◽  
The Magnetic Field

Abstract Space Domain Reflectometry (SDR) is a newly developed non-destructive failure analysis (FA) technique for localizing open defects in both packages and dies through mapping in space domain the magnetic field produced by a radio frequency (RF) current induced in the sample, herein the name Space Domain Reflectometry. The technique employs a scanning superconducting quantum interference device (SQUID) RF microscope operating over a frequency range from 60 to 200 MHz. In this paper we demonstrate that SDR is capable of locating defective micro bumps in a flip-chip device.

A New Methodology for Electrical Debugging Short in Packages with the Modified Daisy-Chain Die

2007 ◽  
Author(s):  
Steve K. Hsiung ◽  
Kevan V. Tan ◽  
John Soopikian
Keyword(s):  
Quantum Interference ◽  
Stress Testing ◽  
Time Domain Reflectometry ◽  
Superconducting Quantum Interference Device ◽  
Difficult Time ◽  
Reference Device ◽  
Ic Packaging ◽  
Scanning Squid ◽  
Non Destructive ◽  
The Magnetic Field

Abstract Packages with the Modified Daisy-chain (MDC) die have been used increasingly to accelerate reliability stress testing of IC packaging during package development, qualification, and evaluation and reliability monitor programs [1]. Utilizing this approach in essence eliminates chip circuit failure mechanisms. Unlike packages with active die, in packages with the MDC die, when short occurred between two daisy-chain pairs of I/Os, there are four possibilities that can attribute to each pin of the two daisy-chain pairs. That makes the isolation of short failure difficult. Time Domain Reflectometry (TDR) is a well-described technique to characterize package discontinuity (open or short failure). By using a bare package substrate and a reference device, an analyst can characterize the discontinuity and localize it: within the package, the die-package interconnects, or on the die [2]. Scanning SQUID (Superconducting Quantum Interference Device) Microscopy, known as SSM, is a non-destructive technique that detects magnetic fields generated by current. The magnetic field, when converted to current density via Fast Fourier Transform (FFT), is particularly useful to detect shorts and high resistance (HR) defects [3]. In this paper, a new methodology that combines Resistance Analysis, TDR Isolation and SSM Identification for electrical debugging short in packages with the MDC die will be presented. Case studies will also be discussed.

Electro Optical Terahertz Pulse Reflectometry—A Fast and Highly Accurate Non-Destructive Fault Isolation Technique for 3D Flip Chip Packages

2013 ◽  
Author(s):  
Stephane Barbeau ◽  
Jesse Alton ◽  
Martin Igarashi
Keyword(s):  
Time Domain ◽  
Flip Chip ◽  
Time Domain Reflectometry ◽  
Fault Isolation ◽  
Terahertz Pulse ◽  
Through Silicon Via ◽  
Isolation Technique ◽  
Non Destructive ◽  
Non Destructive Techniques

Abstract Electro Optical Terahertz Pulse Reflectometry (EOTPR), a terahertz based Time Domain Reflectometry (TDR) technique, has been evaluated on Flip Chip (FC) and 3D packages. The reduced size and complexity of these new generations of advanced IC products necessitate non-destructive techniques with increased fault isolation accuracy. The minimum accuracy achievable with conventional TDR is approximately 1000μm. Here, we show that EOTPR is able to differentiate all of the critical features in a 3D FC package, such as μC4 and Through Silicon Via (TSV), and is capable of producing distance-to-defect accuracy of less than 20μm, a significant improvement over conventional microwave based TDR techniques.

Time Domain Reflectometry—Case Studies in Electrical Failure Isolation

2015 ◽  
Author(s):  
Jason Wheeler ◽  
Stephen Fasolino
Keyword(s):  
Case Studies ◽  
Time Domain ◽  
Time Domain Reflectometry ◽  
Electrical Failure ◽  
Physical Location ◽  
Analysis Technique ◽  
Destructive Analysis ◽  
Non Destructive

Abstract Time Domain Reflectometry (TDR) is an analysis technique for characterizing a transmission environment (PCB traces, cable assemblies, etc.) and identifying the physical location of defects or impedance discontinuities which can quickly narrow the focus of an investigation. This paper introduces the capability and presents several case studies spanning different applications where TDR was useful as a non-destructive analysis technique.

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