Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Woonghwan Ryu"'
Autor:
Jun Ho Lee, Joungho Kim, Woonghwan Ryu, Seungyoung Ahn, Byung-Hun Kum, Chul-Oh Yoon, Junwoo Lee, Hyun Seok Choi, Jonghoon Kim
Publikováno v:
IEEE Transactions on Advanced Packaging. 26:90-98
The multiple line grid array (MLGA) interposer was recently introduced as a future high-density high-speed bonding method. In this paper, we introduce an electrical model and high-frequency characteristics of the MLGA interposer. The high-frequency e
Autor:
Junwoo Lee, Jun Ho Lee, Jingook Kim, Joungho Kim, Woonghwan Ryu, Jae-Myun Kim, Namhoon Kim, Junso Pak
Publikováno v:
IEEE Transactions on Advanced Packaging. 25:356-364
In this paper, we introduce the microwave transmission characteristics of interconnection lines on a wafer level package (WLP) and also propose a precise microwave-frequency model of the WLP interconnections. The slow wave factor (SWF) and attenuatio
Autor:
Sung Joo Park, Nitish Natu, Woonghwan Ryu, Sang Min Lee, Kee Sup Kim, Byung-Hyun Lee, Madhavan Swaminathan
Publikováno v:
2014 IEEE 23rd Conference on Electrical Performance of Electronic Packaging and Systems.
Clock Distribution Networks (CDN) in three dimensional ICs face problems due to temperature and gradients observed across the die. The propagation delay of paths in the CDN varies and leads to mismatch in skew at the distribution points. This could p
Autor:
Sung-Joo Kim, Chanmin Jo, Sang Min Lee, Jaemin Shin, Baekkyu Choi, Seongjae Moon, Woonghwan Ryu
Publikováno v:
2014 IEEE 64th Electronic Components and Technology Conference (ECTC).
Recent fast-evolving mobile system demands high bandwidth and low power consumption, necessitating extension of LPDDR3 beyond 1.6 Gbps. This demand, however, brings significant technical challenges from the perspective of signal and power integrity.
Autor:
Woonghwan Ryu, Max Sunghwan Min, Seung-Yong Cha, Eileen You, Se-ho You, GaWon Kim, Melinda Ling Yang, Seungbae Lee, Harpreet Gill, Young-Hoon Kim, Anil Gundurao
Publikováno v:
2014 IEEE 64th Electronic Components and Technology Conference (ECTC).
In this paper, a BGA package having a ARM SoC chip is introduced, which has component-type embedded decoupling capacitors (decaps) for good power integrity performance of core power. To evaluate and confirm the impact of embedded decap on core PDN (p
Autor:
Woonghwan Ryu, Myunghee Sung, Hyungsoo Kim, Joungho Kim, Namhoon Kim, Jeong-Gyun An, Seungyong Baek
Publikováno v:
IEEE Transactions on Advanced Packaging. 24:260-267
Crosstalk noise has become a significant problem in the design of high-speed digital interconnections. In this paper, we demonstrate a crosstalk reduction method, which has been successfully applied to the design of a CAT-5E modular jack. The CAT-5E
Autor:
Woopoung Kim, Seungyoung Ahn, Joungho Kim, Jun Ho Lee, Woonghwan Ryu, Kyung-Wook Paik, Myung-Jin Yim
Publikováno v:
IEEE Transactions on Components and Packaging Technologies. 23:542-545
This paper firstly reports on the high-frequency SPICE model of the ACF flip-chip interconnections up to 13 GHz. The extraction process is based on an optimization procedure, called a genetic algorithm, which is known as a robust optimization tool. T
Autor:
Joungho Kim, Hyungsoo Kim, Seungyoung Ahn, Woonghwan Ryu, Baekkyu Choi, Namhoon Kim, Dong Gun Kam, Junwoo Lee
Publikováno v:
IEEE Transactions on Advanced Packaging. 23:398-407
With clock distribution of over 1 GHz, problems associated with clock skew, power consumption, and timing jitter are becoming critical for determining the processing speed of high-performance digital systems, especially for multi-processor systems. C
Publikováno v:
IEEE Transactions on Advanced Packaging. 23:495-503
Transmission line structures are needed for the high-performance interconnection lines of GHz integrated circuits (ICs) and multichip modules (MCMs), to minimize undesired electromagnetic wave phenomena and, therefore, to maximize the transmission ba
Publikováno v:
IEEE Transactions on Advanced Packaging. 23:148-155
A proposal is presented for an effective extraction method for crosstalk model parameters of high-speed interconnection lines. In the extraction procedure, mutual capacitance and mutual inductance of the coupled interconnection lines are extracted ba