JP2008188586A - Moisture adjusting method and organic thin film forming method using the same - Google Patents

Moisture adjusting method and organic thin film forming method using the same Download PDF

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JP2008188586A
JP2008188586A JP2007147992A JP2007147992A JP2008188586A JP 2008188586 A JP2008188586 A JP 2008188586A JP 2007147992 A JP2007147992 A JP 2007147992A JP 2007147992 A JP2007147992 A JP 2007147992A JP 2008188586 A JP2008188586 A JP 2008188586A
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humidity
liquid
thin film
organic thin
humidity control
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JP4971037B2 (en
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Daisuke Asanuma
大右 浅沼
Tomoya Hidaka
友也 肥高
Kotaro Arai
香太郎 荒井
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Nippon Soda Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method which is effective for humidity-controlling a liquid to be humidity-controlled, particularly a liquid for forming an organic thin film. <P>SOLUTION: This method comprises the jet of the liquid to be humidity-controlled into a humidity-controlling part which is humidity-controlled from a nozzle in an atomized state or a shower state. The liquid to be humidity-controlled jetted from the nozzle is humidity-controlled by contacting steam or dehumidified air filling the humidity-controlling part while falling in the humidity-controlling part. The humidity-controlled liquid is sent to a next area using a transporting means by storing or not storing it at the bottom of the humidity-controlling part. The moisture of the liquid after humidity control is adjusted by circulating the humidity-controlling part plurality of times as necessary. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、被調湿液の微量水分調整方法、特に、溶液法による有機薄膜の形成方法において、成膜用溶液を噴霧又はシャワー状に噴出させながら調湿させる方法に関する。   The present invention relates to a method for adjusting a minute amount of moisture in a liquid to be conditioned, and more particularly to a method for adjusting humidity while spraying a film forming solution in a spray or shower form in a method for forming an organic thin film by a solution method.

基板表面を改質するためのコーティング膜の形成方法として化学吸着による膜の製造方法がある。
本発明者らは、加水分解性基を有する金属系界面活性剤及びそれと相互作用し得る触媒とを混合して得られる有機薄膜形成用溶液を基板と接触させる際に、水分含量を所定の量になるように調整するか又は保持した有機薄膜形成用溶液を用いることにより、成膜時間を短縮する方法を開発した(特許文献1参照)。
しかしながら、小規模実験では有機薄膜形成用溶液に水を添加して強攪拌することにより調整できるが、自動成膜装置を用いて行う際には強攪拌は実施することができなかった。
一方、液体と気体の混合方法として、有機物含有水を、オゾン含有ガスで満たされた反応塔内の上部より噴霧して有機物含有水をオゾン含有ガスと接触させる方法が知られている。オゾン含有ガス中へ有機物含有水を噴霧することにより、有機物含有水の霧滴又は細流水の表面から水中にオゾンを溶解させることができるというものである(特許文献2参照)。
しかしながら、特許文献2に記載の方法は気体と液体との混合という点において本発明と類似しているが、はたして被調湿液の微量水分の調整に応用しうるかどうかまったく予測できなかった。ましてや、有機薄膜形成用溶液という特殊な溶液の微量の水分調整にとって、特許文献2に記載の方法を応用しうるかどうかはなおさら予測することは困難であった。
As a method for forming a coating film for modifying the substrate surface, there is a film manufacturing method by chemical adsorption.
When the present inventors contact a substrate with a solution for forming an organic thin film obtained by mixing a metal-based surfactant having a hydrolyzable group and a catalyst capable of interacting with it, the water content is set to a predetermined amount. A method for shortening the film formation time was developed by using an organic thin film forming solution that was adjusted or held so as to be (see Patent Document 1).
However, in a small-scale experiment, it can be adjusted by adding water to the organic thin film forming solution and stirring vigorously, but strong stirring cannot be carried out when using an automatic film forming apparatus.
On the other hand, as a method for mixing a liquid and a gas, a method is known in which organic substance-containing water is sprayed from the upper part of a reaction tower filled with an ozone-containing gas to bring the organic substance-containing water into contact with the ozone-containing gas. By spraying organic substance-containing water into the ozone-containing gas, ozone can be dissolved in water from the surface of the organic substance-containing water mist or trickle water (see Patent Document 2).
However, although the method described in Patent Document 2 is similar to the present invention in terms of mixing gas and liquid, it could not be predicted at all whether it can be applied to the adjustment of a minute amount of moisture to be conditioned liquid. In addition, it has been difficult to predict whether the method described in Patent Document 2 can be applied to the adjustment of a small amount of water in a special solution called an organic thin film forming solution.

WO2006/009202公報WO2006 / 009202 Publication 特開2006−272052号公報JP 2006-272052 A

本発明の課題は、被調湿液の微量水分調整方法、特に、溶液法による有機薄膜の形成方法において、成膜用溶液を調湿させる有効な方法を提供することにある。   An object of the present invention is to provide an effective method of conditioning a film-forming solution in a method for adjusting a trace amount of moisture in a liquid to be conditioned, particularly a method for forming an organic thin film by a solution method.

本発明者らは、加湿又は除湿された空間(室)において、成膜用溶液をノズルから噴霧状又はシャワー状に噴出させることにより、成膜用溶液を効率的に加湿又は除湿することができることを見い出し、本発明を完成するに至った。   The present inventors can efficiently humidify or dehumidify the film forming solution by spraying the film forming solution from the nozzle in a sprayed or shower-like manner in a humidified or dehumidified space (chamber). As a result, the present invention has been completed.

すなわち本発明は、
(1)湿度調整された調湿部内に被調湿液をノズルから噴霧状又はシャワー状に噴出させることを特徴とする被調湿液の水分調整方法、
(2)被調湿液が有機薄膜形成用溶液であることを特徴とする上記(1)記載の方法、及び
(3)溶液法により有機薄膜を作製する方法において、上記(1)の方法により調湿された有機薄膜形成用溶液を使用することからなる有機薄膜形成方法
に関する。
That is, the present invention
(1) A moisture adjustment method for a humidity control liquid characterized by causing the humidity control liquid to be sprayed or sprayed from a nozzle into a humidity control section that has been humidity adjusted;
(2) In the method according to (1) above, wherein the conditioned liquid is a solution for forming an organic thin film, and (3) a method for producing an organic thin film by a solution method, the method according to (1) above The present invention relates to an organic thin film forming method comprising using a conditioned organic thin film forming solution.

本発明の水分調整方法により、液体の被調湿物を効率的に加湿又は除湿することができるため、たとえば、有機薄膜を成膜する場合に、有機薄膜形成用溶液を所望の水分濃度に調整することに応用できる。   Since the moisture adjustment method of the present invention can efficiently humidify or dehumidify the liquid humidity-controlled substance, for example, when forming an organic thin film, the organic thin film forming solution is adjusted to a desired moisture concentration. It can be applied to

(水分調整方法)
本発明の水分調整方法は、湿度調整された調湿部内に被調湿液をノズルから噴霧又はシャワー状に噴出させることからなる。ノズルから噴出した被調湿液は、調湿部内を落下する間に、調湿部内の水蒸気により加湿された空気あるいは除湿された空気などの調湿された空気と接触して加湿又は除湿される。
調湿された液は、調湿部内の底部に貯留するか又は貯留することなく輸送手段を用いて次の領域に送ることができる。調湿後の液は、必要に応じて、複数回調湿部を循環させて水分調整することもできる。
(Moisture adjustment method)
The moisture adjustment method of the present invention comprises spraying a conditioned liquid from a nozzle into a humidity-adjusted part with adjusted humidity or spraying it in a shower form. The humidity-controlled liquid ejected from the nozzle is humidified or dehumidified while falling in the humidity-control section and in contact with air conditioned by water vapor or dehumidified air in the humidity-control section. .
The conditioned liquid can be stored in the bottom of the humidity control section or can be sent to the next region using the transport means without storing. If necessary, the moisture after conditioning can be adjusted by circulating the humidity adjusting section a plurality of times.

調湿部において被調湿液を調湿するに際して、調湿部内の空気を必要とする湿度に調整する。調湿された空気の調湿部への供給は、被調湿液の調湿部への供給の前にあらかじめ開始してもよく、同時又はその後開始しても良い。   When humidity is adjusted in the humidity control section, the air in the humidity control section is adjusted to a required humidity. The supply of the conditioned air to the humidity control unit may be started in advance before the supply of the humidity-controlled liquid to the humidity control unit, or may be started simultaneously or afterwards.

空気の加湿は、公知の手段により行うことができ、特に限定は無いが、通常、調湿部内又は調湿部外に設けられた水蒸気発生手段(以下、「加湿器」ともいう)により行うことができる。
水蒸気発生手段は、気化式フィルタとファンとからなるタイプのもの、或いは更にヒーターを併設したタイプのもの、圧縮空気を吹き込むタイプのものなどがある。たとえば、気化式フィルタ、ファン及びヒーターを有するタイプのものは、水を入れたカートリッジ式タンク、該タンクの水から流出する所定量の水を貯める貯水部、該貯水部の水を吸い上げるフィルタ、水を蒸気化するヒータ及び霧化した加湿空気を室内に供給するファン等を有している。また、圧縮空気を吹き込むタイプのものは、水を貯める貯水部、水を蒸気化するヒータあるいは温水パイプ、圧縮空気噴出孔等を有している。水蒸気発生手段が調湿部内に設けられている場合は水蒸気を直接室内に供給し、水蒸気発生手段が調湿部外に設けられている場合は、パイプを通して調湿部内に水蒸気を供給する。
Humidification of air can be performed by known means, and is not particularly limited, but is usually performed by water vapor generating means (hereinafter also referred to as “humidifier”) provided inside or outside the humidity control section. Can do.
The water vapor generating means includes a type composed of a vaporizing filter and a fan, a type additionally provided with a heater, and a type in which compressed air is blown. For example, a type having a vaporization filter, a fan, and a heater includes a cartridge-type tank containing water, a water storage unit that stores a predetermined amount of water flowing out of the water in the tank, a filter that sucks up water in the water storage unit, water And a fan for supplying atomized humidified air into the room. The type that blows in compressed air has a water storage section for storing water, a heater or hot water pipe for vaporizing water, a compressed air ejection hole, and the like. When the water vapor generating means is provided in the humidity control section, the water vapor is directly supplied into the room, and when the water vapor generation means is provided outside the humidity control section, the water vapor is supplied into the humidity control section through a pipe.

一方、空気の除湿は、公知の手段により行うことができ、特に限定はないが、通常、調湿部内又は調湿部外に設けられた除湿手段により行うことができる。
除湿手段には、冷却方式、圧縮方式、吸着方式、吸収方式などがある。冷却方式は、冷凍機により露点温度以下に冷却することにより除湿を行う。圧縮方式は、圧縮機で空気を圧縮することにより除湿する。吸着方式は、水分を吸着しやすい固体に空気を通過させて除湿する。吸収方式は水分を吸収しやすい液体に空気を接触させて除湿する。
簡便な除湿空気の供給方法としては、例えば、加湿器の水を抜いて、加湿されない圧縮エアーのみを送風することにより行うこともできる。
On the other hand, the dehumidification of air can be performed by a known means and is not particularly limited, but can be usually performed by a dehumidifying means provided inside or outside the humidity control section.
As the dehumidifying means, there are a cooling method, a compression method, an adsorption method, an absorption method, and the like. In the cooling method, dehumidification is performed by cooling to a dew point temperature or lower with a refrigerator. A compression system dehumidifies by compressing air with a compressor. In the adsorption method, air is passed through a solid that easily adsorbs moisture to dehumidify it. In the absorption method, air is brought into contact with a liquid that easily absorbs moisture to dehumidify it.
As a simple method of supplying dehumidified air, for example, water in the humidifier can be removed and only compressed air that is not humidified is blown.

被調湿液を噴出させるノズルは、被調湿液を効率よく加湿することができる限り、サイズ、形状、設置位置、設置数に特に限定は無い。ノズルは通常、噴出孔を複数個設けたものが使用され、噴出孔の大きさ、形状、数を変換できるようにすることもできる。調湿効率を高めるためには、噴出孔が小さいほど好ましいが、被調湿液の粘度が高い場合は目詰まりを起こさないようにする必要がある。設置位置は、通常、調湿部内の天井部又は側壁部にあるが、下方から吹き上げるタイプのものであってもかまわない。ノズルの噴出角度を自由に変換できるようにすることもできる。また、ノズルは、スプリンクラーのように回転できる型であってもよい。   There is no particular limitation on the size, shape, installation position, and number of installations of the nozzle that ejects the humidity control liquid as long as the humidity control liquid can be efficiently humidified. Normally, a nozzle having a plurality of ejection holes is used, and the size, shape, and number of the ejection holes can be changed. In order to increase the humidity control efficiency, the smaller the ejection holes, the better. However, when the humidity of the liquid to be controlled is high, it is necessary to prevent clogging. The installation position is usually on the ceiling or side wall in the humidity control unit, but it may be of a type that blows up from below. It is also possible to freely change the nozzle ejection angle. The nozzle may be of a type that can rotate like a sprinkler.

被調湿液の調湿度は、調湿部内の温度、水蒸気発生手段あるいは除湿手段などから送られてくる調湿された空気の温度及び流量、被調湿液の温度、被調湿液のノズルから噴出する液滴の大きさ、噴出速度などにより影響を受けるので、所望の調湿度に応じて、これらの条件を設定する。また、被調湿液の種類により、これらの条件も異なる。   The humidity of the humidity control liquid is determined by the temperature in the humidity control section, the temperature and flow rate of the humidity-controlled air sent from the water vapor generation means or the dehumidification means, the temperature of the humidity control liquid, the nozzle of the humidity control liquid These conditions are set according to the desired humidity control. These conditions also differ depending on the type of humidity control liquid.

本発明の水分調整方法は、有機薄膜の形成に応用することができるほか、微量の水分調整の必要な被調湿液であれば何でも応用可能である。   The moisture adjustment method of the present invention can be applied to the formation of an organic thin film, and can be applied to any humidity-controlled liquid that requires a minute amount of moisture adjustment.

以下に、本発明の水分調整法に係わる実施の態様を示す。
図1は、水分調整装置の概念図である。
水分調整装置は液タンクと調湿槽からなる。調湿槽上部には加湿器又は除湿器から送られる調湿されたエアーの導入口を設けてある。また、調湿槽上部及び底部には、それぞれ液の循環用入口及び出口があり、内部には液の循環用入口に連結した液噴出用のノズルが複数個設けられている。また、液タンクには液の循環用入口及び出口があり、それぞれ調湿槽の液の出口及び入口に連結している。
次に、この装置を用いて液を調湿する方法を示す。
加湿器又は除湿器(図示なし)から調湿されたエアーを調湿槽に送り、槽内を所望の湿度に調整する。一方、液タンク内の液を、ポンプ(図示なし)により調湿槽に送る。調湿槽に送られた液は噴出用ノズルからシャワー状又は噴霧状に噴出される。液滴又は霧滴が調湿されたエアーで湿度調整された調湿槽内を落下する間に液滴又は霧滴は調湿され、底部に貯まった液は再びポンプにより液タンクに送り戻され、液タンク内の液が所望の水分量になるまで続ける。
Below, the embodiment concerning the moisture adjustment method of this invention is shown.
FIG. 1 is a conceptual diagram of a moisture adjusting device.
The moisture adjusting device consists of a liquid tank and a humidity control tank. An inlet for conditioned air sent from a humidifier or a dehumidifier is provided in the upper part of the humidity control tank. The upper and bottom portions of the humidity control tank have a liquid circulation inlet and outlet, respectively, and a plurality of liquid ejection nozzles connected to the liquid circulation inlet are provided therein. Further, the liquid tank has an inlet and an outlet for circulating the liquid, and is connected to the outlet and the inlet of the liquid in the humidity control tank, respectively.
Next, a method for conditioning the liquid using this apparatus will be described.
Air conditioned from a humidifier or dehumidifier (not shown) is sent to a humidity control tank, and the inside of the tank is adjusted to a desired humidity. On the other hand, the liquid in the liquid tank is sent to the humidity control tank by a pump (not shown). The liquid sent to the humidity control tank is ejected from the ejection nozzle in the form of a shower or spray. While the droplet or mist is falling in the humidity-controlled tank adjusted with humidity, the droplet or mist is conditioned, and the liquid stored at the bottom is sent back to the liquid tank by the pump. Continue until the liquid in the liquid tank reaches the desired moisture content.

図2は、別の実施態様に係わる水分調整装置の概念図である。
このタイプの水分調整装置は、液タンクを有しないタイプである。図1に比べて、液タンクのない分、調湿槽は通常、縦長の調湿槽となる。加湿器又は除湿器、液噴出用ノズルなどは図1と同様でよい。
このタイプの装置を使用する場合は、調湿槽内を調湿後、調湿槽内底部に貯蔵された液をポンプ(図示なし)により調湿槽の上部に直接送る。噴出用ノズルからシャワー状又は噴霧状に噴出された液は調湿されたエアーで湿度調整され、底部に貯まっている液に混合される。所望の水分量になるまでこの操作を続ける。
FIG. 2 is a conceptual diagram of a moisture adjusting apparatus according to another embodiment.
This type of moisture adjusting device is a type that does not have a liquid tank. Compared to FIG. 1, the humidity control tank is normally a vertically long humidity control tank because there is no liquid tank. The humidifier or dehumidifier, the liquid ejection nozzle, etc. may be the same as in FIG.
When this type of device is used, after the humidity inside the humidity control tank is adjusted, the liquid stored in the bottom of the humidity control tank is sent directly to the top of the humidity control tank by a pump (not shown). The liquid ejected from the ejection nozzle in the form of a shower or spray is adjusted in humidity with conditioned air and mixed with the liquid stored at the bottom. Continue this operation until the desired moisture content is reached.

(有機薄膜の形成方法)
ここでいう「有機薄膜」とは、基板上において有機薄膜を形成する化合物で特に制限はないが、好ましくは、金属系界面活性剤を水の存在下で加水分解して生成した水酸基含有化合物からなる薄膜を意味する。
本発明の「有機薄膜形成方法」は、金属系界面活性剤等を含有する有機薄膜形成用溶液を基板と接触させることにより、前記基板表面に有機薄膜を形成する。
有機薄膜の形成において、上記方法により所望の濃度に水分調整を行った有機薄膜形成用溶液を使用する。
有機薄膜形成用溶液を基板表面に接触する方法は特に制限されず、公知の方法を用いることができる。具体的には、ディップ法、スピンコート法、スプレー法、ローラコート法、メイヤバー法、スクリーン印刷法、刷毛塗り法等が挙げられ、これらの中でも、ディップ法が好ましい。
(Formation method of organic thin film)
The “organic thin film” as used herein is a compound that forms an organic thin film on a substrate, and is not particularly limited, but is preferably a hydroxyl group-containing compound formed by hydrolyzing a metal surfactant in the presence of water. Means a thin film.
In the “organic thin film forming method” of the present invention, an organic thin film is formed on the surface of the substrate by bringing a solution for forming an organic thin film containing a metal-based surfactant into contact with the substrate.
In the formation of the organic thin film, a solution for forming an organic thin film which has been adjusted to a desired concentration by the above method is used.
The method for bringing the organic thin film forming solution into contact with the substrate surface is not particularly limited, and a known method can be used. Specific examples include a dipping method, a spin coating method, a spray method, a roller coating method, a Meyer bar method, a screen printing method, a brush coating method, and the like. Among these, the dipping method is preferable.

ここでいう「金属系界面活性剤」とは、加水分解可能な官能基を1以上有し、分子内に、親水性部位と疎水性部位とを有するものであれば特に制限されない。好ましくは、下記式(I)で示される化合物の1種又は2種以上を用いる。   The “metal surfactant” herein is not particularly limited as long as it has one or more hydrolyzable functional groups and has a hydrophilic part and a hydrophobic part in the molecule. Preferably, one or more of the compounds represented by the following formula (I) are used.

MXm−n (I) R 1 n MX mn (I)

(式中、Rは、置換基を有していてもよい炭素数1〜30の炭化水素基、置換基を有していてもよい炭素数1〜30のハロゲン化炭化水素基、連結基を含む炭化水素基又は連結基を含むハロゲン化炭化水素基を表し、Mは、ケイ素原子、ゲルマニウム原子、スズ原子、チタン原子及びジルコニウム原子からなる群から選ばれる少なくとも1種の金属原子を表し、Xは水酸基又は加水分解性基を表し、mはMの原子価を表す。nは1から(m−1)の正整数を表し、nが2以上のとき、Rは同一でも相異なっていてもよく、(m−n)が2以上のとき、Xは同一でも相異なっていてもよい。) (In the formula, R 1 is a hydrocarbon group having 1 to 30 carbon atoms which may have a substituent, a halogenated hydrocarbon group having 1 to 30 carbon atoms which may have a substituent, and a linking group. Represents a hydrocarbon group containing or a halogenated hydrocarbon group containing a linking group, and M represents at least one metal atom selected from the group consisting of a silicon atom, a germanium atom, a tin atom, a titanium atom and a zirconium atom, X represents a hydroxyl group or a hydrolyzable group, m represents a valence of M. n represents a positive integer from 1 to (m−1), and when n is 2 or more, R 1 is the same or different. And when (mn) is 2 or more, Xs may be the same or different.

用いる基板としては、表面に活性水素を有する基板が好ましい。具体的にはアルミニウム、銅、ステンレス等の金属;セラミックス;ガラス;プラスチック;紙;天然繊維又は合成繊維;皮革;その他親水性の物質等からなる基板が挙げられる。   As the substrate to be used, a substrate having active hydrogen on the surface is preferable. Specific examples include metals such as aluminum, copper, and stainless steel; ceramics; glass; plastics; paper; natural fibers or synthetic fibers; leather;

表面に水酸基等をもたない材質からなる基板の場合には、予め基板の表面を、酸素を含むプラズマ雰囲気中で処理したり、UVオゾン処理、コロナ処理して親水性基を導入したりすることができる。親水性基としては、水酸基(−OH)が好ましいが、活性水素を有する−COOH、−CHO、=NH、−NH等の官能基等でも良い。 In the case of a substrate made of a material having no hydroxyl group or the like on the surface, the surface of the substrate is previously treated in a plasma atmosphere containing oxygen, or a hydrophilic group is introduced by UV ozone treatment or corona treatment. be able to. As the hydrophilic group, a hydroxyl group (—OH) is preferable, but a functional group such as —COOH, —CHO, ═NH, and —NH 2 having active hydrogen may be used.

また、表面に活性水素をもたない基板の場合、この基板の表面に、予めSiCl、SiHCl、SiHCl、Cl−(SiClO)c−SiCl(式中、cは0又は自然数を表す。)から選ばれる少なくとも1つの化合物を接触させて、表面に活性水素を有するシリカ下地層を形成しておくこともできる。 In the case of a substrate having no active hydrogen on the surface, SiCl 4 , SiHCl 3 , SiH 2 Cl 2 , Cl— (SiCl 2 O) c—SiCl 3 (where c is 0) is previously formed on the surface of the substrate. Alternatively, it represents a natural number.) A silica underlayer having active hydrogen on the surface can be formed by contacting at least one compound selected from the group consisting of:

有機薄膜形成用溶液を基板表面に接触させる温度は、有機薄膜形成用溶液が安定性を保てる温度範囲であれば、特に制限されない。通常、室温から溶液の調製に用いた溶媒の還流温度までの範囲で行うことができる。接触に好適な温度とするには、有機薄膜形成用溶液を加熱するか、基板そのものを加熱すればよい。   The temperature at which the organic thin film forming solution is brought into contact with the substrate surface is not particularly limited as long as the organic thin film forming solution is in a temperature range in which stability can be maintained. Usually, it can be carried out in the range from room temperature to the reflux temperature of the solvent used for preparing the solution. In order to obtain a temperature suitable for contact, the organic thin film forming solution may be heated or the substrate itself may be heated.

また、膜形成を促進するために超音波を用いることもできる。基板表面に接触する工程は、1度に長い時間行っても、短時間の塗布を数回に分けて行ってもよい。   In addition, ultrasonic waves can be used to promote film formation. The process of contacting the substrate surface may be performed for a long time at a time, or may be performed in a short time in several times.

有機薄膜形成用溶液を基板表面に接触させた後、膜表面に付着した余分な試剤、不純物等を除去するために、洗浄工程を設けることもできる。洗浄工程を設けることにより、より膜厚を制御することができる。洗浄方法は、表面の付着物を除去できる方法であれば、特に制限されない。具体的には、用いた金属系界面活性剤を溶解し得る溶媒中に基板を浸漬させる方法;真空中又は常圧下で大気中に放置して蒸発させる方法;乾燥窒素ガス等の不活性ガスを吹き付けて吹き飛ばす方法;等が挙げられる。   After the organic thin film forming solution is brought into contact with the substrate surface, a cleaning step may be provided in order to remove excess reagents, impurities, etc. adhering to the film surface. By providing the cleaning step, the film thickness can be controlled more. The cleaning method is not particularly limited as long as it can remove surface deposits. Specifically, a method of immersing a substrate in a solvent capable of dissolving the used metal surfactant; a method of evaporating by leaving it in the atmosphere under vacuum or normal pressure; an inert gas such as dry nitrogen gas The method of spraying and blowing away;

有機薄膜形成用溶液を基板上に接触させた後又はその後洗浄した後は、基板表面上に形成された膜を安定化させるために、基板を加熱するのが好ましい。加熱する温度は、基板、形成された有機薄膜の安定性等によって適宜選択することができる。   After the organic thin film forming solution is brought into contact with the substrate or washed thereafter, the substrate is preferably heated in order to stabilize the film formed on the substrate surface. The heating temperature can be appropriately selected depending on the stability of the substrate and the formed organic thin film.

以下、実施例により本発明をより具体的に説明するが、本発明の技術的範囲はこれらの例示に限定されるものではない。   EXAMPLES Hereinafter, although an Example demonstrates this invention more concretely, the technical scope of this invention is not limited to these illustrations.

実施例1 (加湿)
図1の概念図により示された装置を作製し、水分調整の試験を行った。
溶液タンクのサイズは、高さ75cm×幅34cm×奥行63cm、水分調整槽は高さ75cm×幅30cm×奥行63cmとした。調湿槽の側面にはシャワーのノズルを17cmの等間隔に9個設置し、液の放射角度を90度とした。試験に使用する液として、芳香族炭化水素溶媒とオクタデシルトリメトキシシラン及びその加水分解物からなる有機薄膜形成用溶液を調製し、液タンクに満たした。
有機薄膜形成用溶液の液温は25℃、加湿器の水温は30℃、加湿器の圧縮エアーの流量は3L/minとし、水分の測定はカールフィッシャー水分計を用いて、次のようにして行った。
まず、溶液タンク内で有機薄膜形成用溶液を15分間循環させた後、液をサンプリングして水分量を測定した。
次に、調湿槽の加湿を開始し、シャワー用バルブを開いて有機薄膜形成用溶液のシャワーリングを開始した。調湿槽の底部に有機薄膜形成用溶液が少量たまったら、ポンプを起動して、有機薄膜形成用溶液を液タンクに戻した。液量バランスをとりながら、シャワーリングと液タンクへの液戻しを継続した。調湿槽から液タンクに液を戻す配管の途中で、定期的に有機薄膜形成用溶液をサンプリングして水分量を測定した。目的水分濃度に達したらシャワーを止め、調湿槽中の有機薄膜形成用溶液をすべて液タンクに戻した。
最後に、液タンク内で有機薄膜形成用溶液を15分間循環させた後、液をサンプリングして水分量を測定した。
結果を表1に示す。水分濃度が時間の経過とともにほぼ一定して増加していることが分かった。
Example 1 (humidification)
The apparatus shown by the conceptual diagram of FIG. 1 was produced and the moisture adjustment test was conducted.
The size of the solution tank was 75 cm high × 34 cm wide × 63 cm deep, and the water adjustment tank was 75 cm high × 30 cm wide × 63 cm deep. Nine shower nozzles were installed at equal intervals of 17 cm on the side surface of the humidity control tank, and the liquid radiation angle was 90 degrees. As a liquid used for the test, an organic thin film forming solution consisting of an aromatic hydrocarbon solvent, octadecyltrimethoxysilane and a hydrolyzate thereof was prepared and filled in a liquid tank.
The liquid temperature of the organic thin film forming solution is 25 ° C., the water temperature of the humidifier is 30 ° C., the flow rate of compressed air in the humidifier is 3 L / min, and the moisture is measured using a Karl Fischer moisture meter as follows. went.
First, after the organic thin film forming solution was circulated in the solution tank for 15 minutes, the liquid was sampled and the water content was measured.
Next, humidification of the humidity control tank was started, the shower valve was opened, and showering of the organic thin film forming solution was started. When a small amount of the organic thin film forming solution was collected at the bottom of the humidity control tank, the pump was started and the organic thin film forming solution was returned to the liquid tank. While balancing the liquid volume, the shower ring and liquid return to the liquid tank were continued. In the middle of the pipe returning the liquid from the humidity control tank to the liquid tank, the organic thin film forming solution was periodically sampled to measure the amount of water. When the target water concentration was reached, the shower was stopped, and all the organic thin film forming solution in the humidity control tank was returned to the liquid tank.
Finally, after the organic thin film forming solution was circulated in the liquid tank for 15 minutes, the liquid was sampled and the water content was measured.
The results are shown in Table 1. It was found that the water concentration increased almost constantly over time.

Figure 2008188586
Figure 2008188586

実施例2 (除湿)
加湿器の水を抜き、加湿器の圧縮エアーの流量を10L/minとして使用した以外は、実施例1と同じ装置及び方法により、水分調整の試験を行った。
結果を表2に示す。水分濃度が時間の経過とともにほぼ一定して減少していることが分かった。

Figure 2008188586
Example 2 (Dehumidification)
A moisture adjustment test was conducted by the same apparatus and method as in Example 1 except that the water in the humidifier was drained and the flow rate of the compressed air in the humidifier was 10 L / min.
The results are shown in Table 2. It was found that the water concentration decreased almost constantly over time.
Figure 2008188586

本発明の水分調整装置の概念図である。It is a conceptual diagram of the moisture adjusting device of the present invention. 本発明の別の実施態様にかかわる水分調整装置の概念図である。It is a conceptual diagram of the moisture adjustment apparatus concerning another embodiment of this invention.

Claims (3)

湿度調整された調湿部内に被調湿液をノズルから噴霧状又はシャワー状に噴出させることを特徴とする被調湿液の水分調整方法。 A method for adjusting moisture in a humidity control liquid, characterized in that the humidity control liquid is ejected from a nozzle in a spray or shower form into a humidity control section. 被調湿液が有機薄膜形成用溶液であることを特徴とする請求項1記載の方法。 2. The method according to claim 1, wherein the humidity control liquid is an organic thin film forming solution. 溶液法により有機薄膜を作製する方法において、請求項1の方法により調湿された有機薄膜形成用溶液を使用することからなる有機薄膜形成方法。 A method of forming an organic thin film by a solution method, comprising using an organic thin film forming solution conditioned by the method of claim 1.
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JP2004131812A (en) * 2002-10-11 2004-04-30 Fujitsu Ltd Film deposition apparatus and film deposition method
JP2006110476A (en) * 2004-10-15 2006-04-27 Nippon Soda Co Ltd Organic thin film forming method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004131812A (en) * 2002-10-11 2004-04-30 Fujitsu Ltd Film deposition apparatus and film deposition method
JP2006110476A (en) * 2004-10-15 2006-04-27 Nippon Soda Co Ltd Organic thin film forming method

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