Title :
Lead inductance of tape carrier package for high-speed LSI´s
Author :
Takada, Mitsuyuki ; Gofuku, Eishi ; Narutaki, Yoshikazu ; Shimamoto, Haruo ; Matsukawa, Fumio ; Nunoshita, Masahiro
Author_Institution :
Mater. & Electron. Devices Lab., Mitsubishi Electr. Corp., Hyogo, Japan
fDate :
11/1/1994 12:00:00 AM
Abstract :
Lead inductances of a 432-lead TCP (Tape Carrier Package) with a metal cap are evaluated by treating the leads as multiconductor-coupled lines. A useful inductance evaluating method is obtained by using a quasi-TEM electromagnetic field analysis and matrix operations. This method is demonstrated for the TCP. By a proximity effect of grounded conductors, the effective self inductance of the longest lead can be reduced to 7.3 nH. This result indicates that TCP´s can be applied to high-speed LSI´s of clock rates up to 100 MHz
Keywords :
digital integrated circuits; electromagnetic field theory; inductance; integrated circuit packaging; large scale integration; matrix algebra; 432-lead TCP; effective self inductance; grounded conductors; high-speed LSI devices; inductance evaluating method; lead inductance; matrix operations; metal cap; multiconductor-coupled lines; proximity effect; quasi-TEM electromagnetic field analysis; tape carrier package; Clocks; Conductors; Copper; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic fields; Inductance; Laboratories; Large scale integration; Packaging;
Journal_Title :
Components, Packaging, and Manufacturing Technology, Part B: Advanced Packaging, IEEE Transactions on
