TWI795199B - 散熱模組製造方法 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 112
- 229910052802 copper Inorganic materials 0.000 claims abstract description 112
- 239000010949 copper Substances 0.000 claims abstract description 112
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 79
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000003466 welding Methods 0.000 claims abstract description 21
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- 230000017525 heat dissipation Effects 0.000 claims description 29
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
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- 238000002513 implantation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 28
- 238000007747 plating Methods 0.000 description 20
- 229910052759 nickel Inorganic materials 0.000 description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000005496 eutectics Effects 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 206010070834 Sensitisation Diseases 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 229910018565 CuAl Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
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- 210000004185 liver Anatomy 0.000 description 1
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- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
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Abstract
一種散熱模組製造方法,係包含下列步驟:一提供至少一鋁質的導熱元件及至少一銅質的導熱元件;一設置銅質置入層步驟,針對該鋁質的導熱元件對應與該銅質的導熱元件相互組合的加工部位或加工面,透過施以物理或化學加工之方式進行設置一銅質置入層;一焊接結合步驟,對該鋁質的導熱元件設置有該銅質置入層處的表面與該銅質的導熱元件透過焊接方式進行焊接固定,以將該鋁質的導熱元件及該銅質的導熱元件結合固定,據此藉由該銅質置入層可改善鋁質的導熱元件不易與其他相同及相異之材質進行焊接接合者。
Description
一種散熱模組製造方法,尤指一種可改善散熱模組製造時因各相異或相同材質之散熱元件之間不易焊接結合的散熱模組製造方法。
銅具有熱傳導效率高之特性,故習知散熱模組常選用銅作為直接與發熱源接觸並吸收發熱源所產生之熱量的基座,並由銅基座再將所吸附之熱量傳遞給作為加速熱傳導的熱管或均溫板及增加散熱面積且散熱效率較佳的鰭片,但以全銅材質製成之基座、均溫板、熱管或鰭片之該等散熱元件,其整體重量較重且材料成本較為昂貴,近年來已逐漸被質輕且成本較低的鋁材質鰭片及鋁基座所取代使用。
雖選用鋁材質取代銅材質可改善了銅重量重及材料成本昂貴等問題,但鋁材質並非不具有缺點,如鋁表面易被氧化,在焊接過程中生成高熔點的氧化物,使焊縫金屬難以完全熔合,給施焊帶來困難。
若銅與鋁直接進行焊接時,兩材料直接對接的部位,在焊接後容易因為脆性大而產生裂紋,並且在銅與鋁進行熔焊時,靠近銅材料這一側的焊縫中很容易形成CuAl2等共晶,而CuAl2等共晶結構僅分布於材料的晶界附近,容易產生晶界間的疲勞或裂紋,又由於銅與鋁兩者的熔點溫度及共晶溫度相差甚大,在熔焊作業中,當鋁熔化時而銅卻保持固體狀態,當銅熔化時,鋁已熔化很多了,無法以
共融或共晶狀態共存,增加焊接難度,再者,焊縫易產生氣孔,由於銅與鋁的導熱性都很好,焊接時熔池金屬結晶快,高溫時的治金反應氣體來不及逸出,故而容易產生氣孔,故銅與鋁材質間無法直接進行焊接,則必須對該鋁材質表面進行表面改質後使得以進行後續與銅材質或其他材料焊接之作業,故為改善前述習知改用鋁材質取代銅材質無法直接與銅或其他異材質進行焊接的缺失,則熟悉該項技藝之人士使用了無電鍍鎳作為表面改質的技術工法,並無電鍍鎳有三種:低磷、中磷、高磷。且無電鍍沉積(Electroless depostion)又可以稱做化學鍍(Chemical Deposition)或自催化鍍法(Autocatalytic Plating),無電鍍鎳液可分為下列三種:(1)活化敏化+酸性鍍浴PH值在4~6之間的屬於酸性鍍液,其特色是蒸發量所引起成分量的損失較少,雖然操作溫度較高,但鍍液較安全且容易控制,含磷量高、鍍率高,常為工業界所使用。(2)活化敏化+鹼性鍍液鹼性鍍浴的PH值在8~10之間,因調整PH值的氨水容易揮發,在操作時須適時補充氨水來維持PH值的穩定,含磷量較少,鍍液較不穩,操作溫度較低。(3)HPM+鹼性鍍浴HPM是將矽晶片浸泡於DI-water:H2O2(aq):HCl(aq)=4:1:1的混合液中利用矽晶表面形成的氧化層來取代敏化活化,在表面形成自我催化表面。
而無電鍍鎳製程中需使用大量的化學反應液體,並且在無電鍍鎳製程後將會產生大量含有重金屬或化學物質的工業廢液,而工業廢液中都會產生大量的含有黃磷等有毒物質的廢水,並且該廢水無法在重複使用,也必須透過專責單位將該廢水進行回收處理,不能將該廢水直接排放避免環境收到汙染。黃磷污水中含有50~390mg/L濃度的黃磷,黃磷是一種劇毒物質,進入人體對肝臟等器官危害
極大。長期飲用含磷的水可使人的骨質疏鬆,發生下頜骨壞死等病變。故現行各國已開始禁用此項製程,並推廣無毒製程藉以保護環境。
故如何提供一種可降低散熱模組組合結構整體重量,以及取代化學鍍鎳作為改善鋁材質無法與其他異材質焊接的表面改質工法,同時可有利於焊接作業進行又不額外產生環境汙染物的方法,則為現階段首重之目標。
爰此,為有效解決上述之問題,本發明之主要目的,係提供一種取代化學鍍鎳作為改善鋁製散熱元件與其他相異或相同材質散熱元件間無法直接進行焊接的散熱模組製造方法。
為達上述之目的,本發明係提供散熱模組製造方法,係包含下列步驟:S1:一提供至少一鋁質的導熱元件及至少一銅質的導熱元件;S2:一設置銅質置入層步驟,針對該鋁質的導熱元件對應與該銅質的導熱元件相互組合的加工部位或加工面,透過施以物理或化學加工之方式進行設置一銅質置入層;S3:一焊接結合步驟,對該鋁質的導熱元件設置有該銅質置入層處的表面與該銅質的導熱元件透過焊接方式進行焊接固定,以將該鋁質的導熱元件及該銅質的導熱元件結合固定。
藉由本發明以該銅質置入層取代傳統化學鍍鎳,當有鋁製散熱元件欲與其他異材質或同材質之散熱元件進行焊接時,可透過於該鋁製散熱元件與其他材質元件結合之部位的表面設置該銅質置入層,改善鋁製散熱元件不易與其他異材料或同材料進行焊接之問題,由該銅質置入層取代傳統化學鍍鎳鍍層所衍生之缺失者。
1:銅質的導熱元件
2:鋁質的導熱元件
3:銅質置入層
4:焊料層
S1、S2、S3:步驟
第1圖係為本發明之散熱模組製造方法步驟流程圖;第2圖係為本發明之散熱模組製造方法示意圖;
本發明之上述目的及其結構與功能上的特性,將依據所附圖式之較佳實施例予以說明。
請參閱第1圖,係為本發明之散熱模組製造方法步驟流程圖,如圖所示,本發明散熱模組製造方法,係包含下列步驟:
S1:一提供至少一鋁質的導熱元件及至少一銅質的導熱元件;提供一銅質的導熱元件或一鋁質的導熱元件,所述銅質的導熱元件係為一銅質材質之基座、底板、熱管、均溫板或一水冷頭,所述鋁質的導熱元件係為鋁質材質之基座或鰭片等元件。
S2:一設置銅質置入層步驟,針對該鋁質的導熱元件對應與該銅質的導熱元件相互組合的加工部位或加工面,透過施以物理或化學加工之方式進行設置一銅質置入層;對欲進行加工面或部位施以物理或化學加工設質一銅質置入層,即針對該鋁質的導熱元件與該銅質的導熱元件要相互固定組合的部位,以物理或化學加工方式於鋁質的導熱元件之表面形成該銅質置入層,該物理加工係可為機械加工產生形變或切銷之方式進行,如透過高速噴塗金屬粒子堆積於該鋁質的導熱元件欲與該銅質的導熱元件之表面形成該銅質置入層,或透過敲擊錘打之方式將銅薄層崁設於該鋁質的導熱元件欲與該銅質的導熱元件之表面形成該銅質之置入層,該化學加工之方式係透過以印刷、電鍍、電解、電
鑄等方式將該銅質置入層設置於該鋁質的導熱元件之表面,藉由於鋁質的導熱元件之表面所設置的銅質置入層可改善習知鋁質的導熱元件與銅質的導熱元件不易焊接之缺失。
S3:一焊接結合步驟,對該鋁質的導熱元件設置有該銅質置入層處的表面與該銅質的導熱元件透過焊接方式進行焊接固定,以將該鋁質的導熱元件及該銅質的導熱元件結合固定。
此一步驟將進行焊接作業將鋁質、銅質的導熱元件進行接合,其焊接作業將針對該鋁質的導熱元件設置有銅質置入層處的表面與該銅質的導熱元件進行焊接,由於該銅質置入層之設置,令鋁質的導熱元件與銅質的導熱元件欲焊接之處具有相同金屬元素,使鋁質的導熱元件與銅質的導熱元件兩者間可順利焊接結合。
參閱第2圖,如圖所示,所述鋁質的導熱元件2與該銅質的導熱元件1對應與結合,並該鋁質的導熱元件2與該銅質的導熱元件1接觸結合之部位設置有該銅質置入層3,並於該銅質置入層3與該銅質的導熱元件1之間透過設置一焊料層4將該鋁質的導熱元件2與該銅質的導熱元件1固定結合。
所述銅質的導熱元件1具有一吸熱部及一冷凝部,所述鋁質的導熱元件2具有一結合部,該吸熱部對應與該結合部組設,並該結合部外部表面設置有該銅質置入層,並所述冷凝部對應穿設複數散熱鰭片,該等散熱鰭片係為鋁材質,所述吸熱部透過該銅質置入層之設置與該結合部焊接固定。
所述銅質置入層3具有一植入面及一接觸面在該銅質置入層3的相反兩面,該植入面咬嵌深入於所述鋁質的導熱元件2與該銅質的導熱元件1相互固定組合之部位內,該接觸面作為該銅質置入層3的外露表面與一焊料層4結合。
透過本發明說明書內容之揭示可知,當將該鋁質的導熱元件欲與該銅質的導熱元件結合之部位形成一銅質置入層後,可透過焊接之方式輕易將兩導熱元件欲結合之部位施以焊接結合。
本發明欲改良在傳統散熱模組製造時,係使用了鋁質的導熱元件(如基座、散熱鰭片組)及銅質的導熱元件進行結合,二者必須透過焊接之方式進行結合,但由於銅材質與鋁材質及鋁材質與鋁材質並無法直接進行焊接,習知技術必須先行於該鋁質散熱鰭片與該鋁質基座接合或鋁質基座與銅質熱管接合之部位以化學鍍鎳之方式沉積一鎳鍍層,令該鋁質基座與該鋁質鰭片及該銅質熱管得以順利進行焊接結合,又因該化學鍍鎳之工法所產生之環境汙染已漸漸被重視且被要求改善,故本發明提供一種當鋁質的導熱元件欲與該銅質的導熱元件施以焊接結合時,於鋁質的導熱元件欲與該銅質的導熱元件相互焊接結合之部位外表面設置一銅質置入層,令該鋁質的導熱元件與該銅質的導熱元件得以順利直接焊接結合,故本發明由銅質的置入層取代了傳統散熱模組製造時使用化學鍍鎳之方式,不僅節省成本且可改善化學鍍鎳所產生之環保汙染等問題。
S1、S2、S3:步驟
Claims (5)
- 一種散熱模組製造方法,係包含下列步驟:一提供至少一鋁質的導熱元件及至少一銅質的導熱元件;一設置銅質置入層步驟,針對該鋁質的導熱元件對應與該銅質的導熱元件相互組合的加工部位或加工面,透過施以物理加工之方式進行設置一銅質置入層,所述銅質置入層具有一植入面及一接觸面在該銅質置入層的相反兩面,該植入面咬嵌深入於所述鋁質的導熱元件與該銅質的導熱元件相互固定組合之部位內;一焊接結合步驟,對該鋁質的導熱元件設置有該銅質置入層處的表面與該銅質的導熱元件透過焊接方式進行焊接固定,以將該鋁質的導熱元件及該銅質的導熱元件結合固定。
- 如申請專利範圍第1項所述之散熱模組製造方法,其中該接觸面作為該銅質置入層的外露表面與一焊料層結合。
- 如申請專利範圍第1項所述之散熱模組製造方法,其中所述銅質的導熱元件係為一銅質熱管,所述鋁質的導熱元件係為一鋁質基座。
- 如申請專利範圍第3項所述之散熱模組製造方法,其中所述銅質的導熱元件具有一吸熱部及一冷凝部,所述鋁質的導熱元件具有一結合部,該吸熱部對應與該結合部組設,並該結合部外部表面設置有該銅質置入層,並所述冷凝部對應穿設複數散熱鰭片,該等散熱鰭片係為鋁材質,所述吸熱部透過該銅質置入層之設置與該結合部焊接固定。
- 一種散熱模組製造方法,係包含下列步驟:一提供至少一鋁質的導熱元件及至少一銅質的導熱元件; 一設置銅質置入層步驟,針對該鋁質的導熱元件對應與該銅質的導熱元件相互組合的加工部位或加工面,透過施以化學加工之方式進行設置一銅質置入層,所述銅質置入層具有一植入面及一接觸面在該銅質置入層的相反兩面,該植入面咬嵌深入於所述鋁質的導熱元件與該銅質的導熱元件相互固定組合之部位內;一焊接結合步驟,對該鋁質的導熱元件設置有該銅質置入層處的表面與該銅質的導熱元件透過焊接方式進行焊接固定,以將該鋁質的導熱元件及該銅質的導熱元件結合固定。
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