Impurity Redistribution during Silicon Epitaxial Growth and Semiconductor Device Processing

1974 ◽  
Vol 121 (4) ◽  
pp. 563 ◽  
Author(s):  
Paul H. Langer ◽  
Joseph I. Goldstein
2004 ◽  
Vol 10 (4) ◽  
pp. 462-469 ◽  
Author(s):  
Wolf-Dieter Rau ◽  
Alexander Orchowski

We present and review dopant mapping examples in semiconductor device structures by electron holography and outline their potential applications for experimental investigation of two-dimensional (2D) dopant diffusion on the nanometer scale. We address the technical challenges of the method when applied to transistor structures with respect to quantification of the results in terms of the 2Dp–njunction potential and critically review experimental boundary conditions, accuracy, and potential pitfalls. By obtaining maps of the inner electrostatic potential before and after anneals typically used in device processing, we demonstrate how the “vertical” and “lateral” redistribution of boron during device fabrication can directly be revealed. Such data can be compared with the results of process simulation to extract the fundamental parameters for dopant diffusion in complex device structures.


1993 ◽  
Vol 38 (1) ◽  
pp. 101-106 ◽  
Author(s):  
Paul A. Kohl ◽  
Derek B. Harris

Author(s):  
T. Kimoto ◽  
H. Yano ◽  
Y. Negoro ◽  
K. Hashimoto ◽  
H. Matsunami

1992 ◽  
Vol 39 (1) ◽  
pp. 4-32 ◽  
Author(s):  
M.M. Moslehi ◽  
R.A. Chapman ◽  
M. Wong ◽  
A. Paranjpe ◽  
H.N. Najm ◽  
...  

2010 ◽  
Vol 518 (9) ◽  
pp. 2565-2568 ◽  
Author(s):  
J. Moers ◽  
J. Gerharz ◽  
G. Rinke ◽  
G. Mussler ◽  
St. Trellenkamp ◽  
...  

1987 ◽  
Vol 97 ◽  
Author(s):  
J. D. Parsons

ABSTRACTBeta SiC is an important semiconductor whose development has been slowed by synthesis difficulties. The physical and electronic properties which make β-SiC desirable for high speed and high power electronics are discussed, with special emphasis on field effect transistor (FET) applications. A history of synthesis efforts is presented to illuminate the obstacles encountered in the growth of semiconductor device quality P-SiC. A new approach to single crystal epitaxy of β-SiC, using TiC as a substrate, is described. The properties of TiC which make it a uniquely suitable substrate for β-SiC epitaxial growth are discussed, and procedures used to prepare TiC surfaces for β-SiC epitaxy are described. The growth process employed at our laboratory, chemical vapor deposition (CVD), is described, and experimental observations of the effects of the CVD growth environment on β-SiC epitaxial growth are presented. Based on these observations, we propose to synthesize β-SiC in a singlesource reaction, using molecules which decompose directly to SiC units. This contrasts with current approaches, which introduce Si and C separately, in molecules which must decompose and subsequently react to form SiC.


2016 ◽  
Vol 2016 (1) ◽  
pp. 000469-000474 ◽  
Author(s):  
Xiao Liu ◽  
Qi Wu ◽  
Dongshun Bai ◽  
Trevor Stanley ◽  
Alvin Lee ◽  
...  

Abstract Advanced wafer-level packaging (WLP) techniques, mainly driven by high performance applications in memory and mobile market, have been adopted for large-scale manufacturing in recent years. Temporary wafer bonding and debonding technology has been widely studied and developed over the last decade for use in various WLP technologies, such as package-on-package (PoP), fan-out integration, and 2.5-D and 3-D integration using through-silicon-via (TSV). Temporary bonding technology enables handling of thinned substrates (<100 μm), which can no longer self-support during backside processing and packaging. Moreover, some applications require the temporary bonding materials to withstand temperatures up to 250°C in high-vacuum conditions, and even up to 350°C or higher during the dopant activation step required for manufacturing power devices. Therefore, a simple yet effective temporary bonding process and material that can survive all the backside processes is highly desired. In this study, a series of formulations based on polar thermoplastics were developed for temporary wafer bonding applications. These materials target high temperature survivability and improved adhesion to prevent the premature delamination during downstream wafer processing. All of these materials provide high thermal stability up to 250°C or higher, and are able to be bonded to carrier wafers treated with release layers, which can be selectively debonded by either mechanical or laser release after backside processing. The material left on device wafer after debonding can be easily cleaned using common industrial solvents. Wafers bonded with these materials demonstrate lower overall stack total thickness variation (TTV < 5 μm) after grinding and have successfully passed a 200°C PECVD process without any delamination during grinding and PECVD processes.


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