JP6135760B2 - 放熱構造体及びその製造方法並びに電子装置 - Google Patents
放熱構造体及びその製造方法並びに電子装置 Download PDFInfo
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- JP6135760B2 JP6135760B2 JP2015521189A JP2015521189A JP6135760B2 JP 6135760 B2 JP6135760 B2 JP 6135760B2 JP 2015521189 A JP2015521189 A JP 2015521189A JP 2015521189 A JP2015521189 A JP 2015521189A JP 6135760 B2 JP6135760 B2 JP 6135760B2
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- heat dissipation
- dissipation structure
- coating layer
- oxide
- carbon nanotube
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- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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Description
一実施形態による放熱構造体及びその製造方法並びにその放熱構造体を用いた電子装置及びその製造方法を図1乃至図15を用いて説明する。
まず、本実施形態による放熱構造体について図1を用いて説明する。図1は、本実施形態による放熱構造体の例を示す断面図である。
なお、上記では、カーボンナノチューブ12の根元部18側が充填層20から露出した状態になっている場合を例に説明したが、これに限定されるものではない。
次に、本実施形態による放熱構造体を用いた電子装置について図3を用いて説明する。図3は、本実施形態による電子装置を示す断面図である。
次に、本実施形態による放熱構造体の製造方法について図4乃至図7を用いて説明する。図4乃至図7は、本実施形態による放熱構造体の製造方法の例を示す工程断面図である。
次に、本実施形態による放熱構造体の評価結果について説明する。
次に、本実施形態による電子装置の製造方法について図17及び図18を用いて説明する。図17及び図18は、本実施形態による電子装置の製造方法の例を示す工程断面図である。
上記実施形態に限らず種々の変形が可能である。
12…カーボンナノチューブ
14…先端部
16…根元部
18…被覆層
20…充填層、熱可塑性樹脂フィルム
22…回路基板
24…半導体素子
26…半田バンプ
28…ヒートスプレッダ
30…有機シーラント
32…電子装置
34…基板
35…構造物
36…台座
38…構造物
Claims (14)
- 少なくとも一方の端部が湾曲した炭素元素の複数の線状構造体と、
前記線状構造体の表面に形成され、前記線状構造体の他方の端部を覆う部分の厚さが前記線状構造体が塑性変形可能な厚さであり、前記一方の端部側から前記他方の端部側に向かって厚さが薄くなる被覆層と
を有することを特徴とする放熱構造体。 - 請求項1記載の放熱構造体において、
前記複数の線状構造体の前記他方の端部が湾曲している
ことを特徴とする放熱構造体。 - 請求項1又は2記載の放熱構造体において、
前記被覆層のうちの前記線状構造体の前記他方の端部を覆う部分の厚さは、20nm以下である
ことを特徴とする放熱構造体。 - 請求項1乃至3のいずれか1項に記載の放熱構造体において、
前記被覆層に含まれる粒子の粒径が、前記一方の端部側から前記他方の端部側に向かって小さくなることを特徴とする放熱構造体。 - 請求項1乃至4のいずれか1項に記載の放熱構造体において、
前記被覆層のうちの前記線状構造体の前記他方の端部を覆う部分における前記被覆層に含まれる粒子の粒径は、20nm以下である放熱構造体。 - 請求項1乃至5のいずれか1項に記載の放熱構造体において、
前記被覆層は、アルミニウム酸化物、チタン酸化物、ハフニウム酸化物、鉄酸化物、インジウム酸化物、ランタン酸化物、モリブデン酸化物、ニオブ酸化物、ニッケル酸化物、ルテニウム酸化物、シリコン酸化物、バナジウム酸化物、タングステン酸化物、イットリウム酸化物、又は、ジルコニウム酸化物を含む
ことを特徴とする放熱構造体。 - 請求項1乃至6のいずれか1項に記載の放熱構造体において、
前記線状構造体間に充填された樹脂層を更に有する
ことを特徴とする放熱構造体。 - 炭素元素の複数の線状構造体を基板上に形成する工程と、
前記複数の線状構造体の先端部を湾曲させる工程と、
原子層堆積法により、前記線状構造体の表面に、前記線状構造体の根元部を覆う部分の厚さが前記線状構造体が塑性変形可能な厚さであり、前記先端部側から前記根元部側に向かって厚さが薄くなる被覆層を形成する工程と
を有することを特徴とする放熱構造体の製造方法。 - 請求項8記載の放熱構造体の製造方法において、
前記被覆層を形成する工程では、一の原料ガスを供給してから他の原料ガスを供給するまでの時間を制御することにより、前記被覆層の厚さの分布を制御する
ことを特徴とする放熱構造体の製造方法。 - 請求項8又は9記載の放熱構造体の製造方法において、
前記被覆層を形成する工程の後に、荷重を加えることにより、前記複数の線状構造体の前記根元部を湾曲させる工程を更に有する
ことを特徴とする放熱構造体の製造方法。 - 請求項8乃至10のいずれか1項に記載の放熱構造体の製造方法において、
前記被覆層のうちの前記線状構造体の前記根元部を覆う部分の厚さは、20nm以下である
ことを特徴とする放熱構造体の製造方法。 - 請求項8乃至11のいずれか1項に記載の放熱構造体の製造方法において、
前記被覆層に含まれる粒子の粒径が、前記先端部側から前記根元部側に向かって小さくなることを特徴とする放熱構造体の製造方法。 - 請求項8乃至12のいずれか1項に記載の放熱構造体の製造方法において、
前記被覆層のうちの前記線状構造体の前記根元部を覆う部分における前記被覆層に含まれる粒子の粒径は、20nm以下である放熱構造体の製造方法。 - 発熱体と、
放熱体と、
一方の端部が湾曲した炭素元素の複数の線状構造体と、前記線状構造体の表面に形成され、前記線状構造体の他方の端部を覆う部分の厚さが前記線状構造体が塑性変形可能な厚さであり、前記一方の端部側から前記他方の端部側に向かって厚さが薄くなる被覆層とを有し、前記線状構造体の前記他方の端部が湾曲した放熱構造体とを有し、
前記複数の線状構造体の湾曲した前記一方の端部の側面の一部が、前記発熱体及び前記放熱体の一方に接しており、
前記複数の線状構造体の湾曲した前記他方の端部の側面の一部が、前記発熱体及び前記放熱体の他方に接している
ことを特徴とする電子装置。
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