Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1981-03-11
1983-06-14
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 99, 156263, 1562733, 1562737, 1562755, 1562757, 156295, 1563799, 313386, B29C 2710, B32B 3120, H01L 3118
Patent
active
043881289
ABSTRACT:
In a step for bonding a color filter to a solid-state color-image sensor chip with an adhesive which is curable not only by light or more particularly ultraviolet-ray irradiation but also by heating, pre-curing or partial curing is effected by irradiating light rays after the color filter and the chip has been pressed against each other and correctly aligned with each other in a bonding device and then the chip with the partially-bonded color filter is removed from the bonding device and complete curing of the adhesive is accomplished by heating. According to one embodiment of the present invention the bonding step is carried out in an atmosphere containing the oxygen so that the adhesive which has been squeezed out from the space between the color filter and the clip may be prevented from being cured and subsequently removed in a simple manner. According to a further embodiment of the present invention, prior to the bonding step, the color filter and chip are covered with protective layers or films so that surface flaws may be avoided. Thus, the color filters can be bonded to the chips with a higher degree of accuracy and a higher degree of adhesive strength and the mass production of solid-state color-image sensors can be much facilitated.
REFERENCES:
patent: 3669825 (1972-06-01), Hall
patent: 3713935 (1973-01-01), Grecchi
patent: 3867222 (1975-02-01), Plant et al.
patent: 3985918 (1976-10-01), Fukai et al.
patent: 4153526 (1979-05-01), Cherenko et al.
patent: 4321747 (1982-03-01), Takemura et al.
Kitahiro Isamu
Kondo Shigeru
Ogawa Kazufumi
Yasuda Yoshiko
Yonezawa Taketoshi
Matsushita Electric - Industrial Co., Ltd.
Wityshyn Michael G.
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