Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1994-11-28
1996-11-05
Gross, Anita Pellman
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
174254, 257669, 361749, G02F 11345, H05K 100, H01L 23495
Patent
active
055723462
ABSTRACT:
In an LCD driver package using a TAB tape carrier an object of this invention is to prevent damage to the input leads from being caused under the influence of the twisting or wrinkling of TAB tape due to the difference in thermal expansion coefficient between the printed circuit board and the LCD glass board, and so forth. At least one pair of anchor hole 40are formed in the TAB tape carrier 10 of an LCD driver package having input leads 12 connected to a printed circuit board 24, output leads 14 connected to an LCD glass board 26, and a chip 22, the tape carrier 10 being fixed on the printed circuit board 24 with solder or an adhesive using anchor holes 40 after mounting of the LCD driver chip. Fixing through such anchor holes prevents the twisting or wrinkling of the tape from propagating to the input leads.
REFERENCES:
patent: 5404239 (1995-04-01), Hirai
"Stress Relief for Tape Automated Bonding (TAB) Tape", Research Disclosure, Oct. 1988, No. 294.
Sakamoto Kazunori
Umemoto Kazuhiro
Drumheller Ronald L.
Gross Anita Pellman
International Business Machines - Corporation
Malinowski Walter J.
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