TWI336510B - - Google Patents
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Description
1336510 (1) 九、發明說明 【發明所屬之技術領域】 本發明係關於埋入著微波元件等高頻元件之高頻元件 模組,尤其是,與其構造相關。 【先前技術】 隨著最近之資訊化社會的發展,對於增加傳送容量之 要求也愈來愈強烈,而且,也要求較大傳送容量之系統及 高度之調變方式。而且,也要求具有高利得且低價格之裝 置。 針對如上所示之要求,如日本公開公報特間200 1 -3 45 4 1 9號公報所示,對於陶瓷之單板具備金屬板且固設著 元件之簡易型封裝實施聚醯亞胺(polyimide)之塗佈來保 護表面,並在其上塗佈以保護絲線及元件爲目的之注封 (potting)材的模組係大家所熟知。 注封材雖然具有絕緣性,然而,高性能之元件及高利 得之元件卻會放射電磁場,而對外部產生不良影響,或者 ,相反地,因爲周圍之電磁場及自己所發出之微波之輸出 之潛通而導致性能明顯劣化,而使其用途受到限制。 此外,日本特許公開公報特開2003-298004係記載著 ,爲了防止以高頻段驅動之能動元件晶片間之電磁波干涉 ,以分散著Ni粒子等之金屬粒子之絕緣樹脂層進行密封 之高頻元件模組。 然而,因爲此種高頻元件模組之金屬粒子可能會腐蝕 -4- (2) (2)1336510 ’而有無法長期充分實.現電磁遮蔽之問題。 【發明內容】 本發明有鑑於上述之傳統之高頻元件模組之問題點, 提供一種,電磁波對外部之影響、及受到外部之影響,可 以長期保持於較小,具有良好電氣性能且構造簡單又價廉 之高頻元件模組及其製造方法。 依據本發明之一觀點(aspect),係提供其特徵爲具有 :絕緣基板;配設於該絕緣基板之高頻元件;用以覆蓋該 高頻元件之注封材;以及配設於該注封材之上,且至少〜 端進行接地之金屬層;之高頻元件模組。 依據本發明之其他觀點,係提供其特徵爲具有:於表 面配設著電極且於背面配設著接地基板之絕緣基板;配設 於該絕緣基板,其端子連結於前述電極之高頻元件;用以 覆蓋該高頻元件之注封材:以及配設於該注封材之上,_ 結於前述接地基板之金屬層;之高頻元件模組。 依據本發明,可以得到電磁波對外部之影響及受到外 部之影響可以長期保持於較小,因而具有良電氣性能,_ 造簡單且價廉之高頻元件模組。 【實施方式】 以下,參照圖面,針對本發明之實施形態,進行說明 -5- 1336510 ⑶ <第1實施形態> , 第1圖係本發明第1實施形態之高頻元件模組之構造之 剖面圖,第2圖係該高頻元件模組之上面圖。第1圖係第2 圖之A1-A2之剖面。 由:具有特定之孔部11,由陶瓷所構成,於表面配設 著配線之絕緣基板12;配線於該絕緣基板12之表面之電極 13a、13b:以含有孔部11之背面之方式配設之接地基板13 ;配設於該接地基板13上之孔部11內之台部14;固定於該 台部14之上之高頻元件15 ;用以連結該高頻元件15之元件 端子16a、16b及上述絕緣基板12上之電極13a、13b,例 如由金所構成之絲線1 7 a、1 7 b ;用以覆蓋於該等絲線1 7 a 、17b及上述高頻元件15之上來進行密封之注封材18;以 及配設於該注封材18之上之金屬膜19;所構成。高頻元件 15係例如場效電晶體(FET),其周圍塗佈著用以保護該元 件之表面且密合性良好之例如聚醯亞胺20之表面保護材。 其次,針對本實施形態之高頻元件模組之製造方法進 行說明。至配設注封材1 8爲止,利用與傳統相同之方法即 可。其次,如第3圖所示,配設只有注封材18之上部之必 要部份鏤空之遮罩圖案31,利用該遮罩圖案實施例如鋁之 金屬材料之蒸鍍來配設金屬膜19。金屬膜19之厚度應爲1 〜5微米程度。 此外,金屬膜1 9係如第2圖所示之大小及形狀。亦即 ,係於垂直於第1圖所示之剖面之方向之絕緣基板12上, 配設如第2圖所示之接地端子22a、22b’注封材18上之金 -6- (5) 1336510 部41,於其上,固定著例如MMIC元件之高頻元件45,背 . 面則配設著接地基板43。於絕緣基板42之表面,配設著電 極43a、43c及電極43b、43d,由金所構成之絲線47a、 4 7b等連結於該等電極。於高頻元件45之周圍,塗佈著例 • 如聚醯亞胺50之該元件之表面保護材。高頻元件45及絲線 係被注封材48所密封。於該注封材48之上,與上述第1實 施形態相同,配設著金屬膜49,例如,以蒸鍍配設1〜5微 φ 米之厚度之鋁。 本實施形態時,於該金屬膜49之上,塗佈著有機系之 聚醯亞胺53做爲絕緣層,此外,於其上,如第5圖所示, 配設例如用以連結上述電極43b及電極43c之配線圖案54 。第4圖係虛線B 1、B 2間之剖面圖。 如第4圖所示,於其上,塗佈例如有機系之聚醯亞胺 55當做用以保護該配線圖案54之保護層。 依據本發明之本實施形態,即使連結元件端子之電極 φ 間,也不會發生振盪等,而具有可得到安定且價廉之高頻 元件模組之優點。 上述實施形態時,係針對採用FET及MM 1C元件做 ' 爲高頻元件時進行說明,然而,本發明並未受限於此,也 ' 可使用於一般之具有應用於微波等高頻之元件之模組。 此外,上述實施形態時,係針對於配設於絕緣基板之 孔部配設著高頻元件並以注封材進行密封之構造之高頻元 件模組進行說明。然而,本發明並未受限於上述模組,亦 可應用於在絕緣基板之上配設高頻元件並以注封材覆蓋之 -8 - (6) (6)1336510 構造之_頻兀件模組。. 上述實施形態皆針對於高頻元件之周圍塗佈聚醯亞胺 當做表面保護材時進行說明。將聚醯亞胺塗佈於高頻元件 塗佈’不但可保護高頻元件’而且,具有提高高頻元件及 注封材之密合性之效果。然而,本發明亦可依據高頻元件 及注封材之密合性,塗佈聚醯亞胺以外之其他材料當做表 面保護材。此外,無需保護高頻元件時,本發明也不一定 需要表面保護材。 上述實施形態係針對於注封材之上配設金屬膜時進行 說明,然而,本發明並未受限於金屬膜,一般而言,以配 設金屬層爲佳。 此外,上述實施形態係針對於絕緣基板之背面配設接 地基板’且將連結於該接地基板之接地端子配設於絕緣基 板之表面時進行說明。然而,本發明並未受限於該構造之 模組,形成於上述注封材之上之金屬層只要至少一端接地 即可。一般而言,本發明之高頻元件模組只要具有:絕緣 基板、配設於該絕緣基板之高頻元件、用以覆蓋該高頻元 件之注封材、以及配設於該注封材之上,且至少一端進行 接地之金屬層;即可。 此外,上述實施形態係針對於絕緣基板之上配設1個 高頻元件時進行說明,然而,亦可配設複數個高頻元件。 本發明並未受限於上述實施形態,在本發明之技術思 想之範圍內可進行各種變形。 (7) (7)1336510 【圖式簡單說明】 第1圖係本發明之第1實施形態之構造之剖面圖。 第2圖係本發明之第1實施形態之上面圖。 第3圖係本發明之第1實施形態之製造方法之說明圖。 第4圖係本發明之第2實施形態之構造之剖面圖。 第5圖係本發明之第2實施形態之配線圖案之說明圖。 【主要元件符號說明】 11 :孔部 1 2 :絕緣基板 1 3 :接地基板 1 3 a .電極 1 3 b :電極 1 4 :台部 1 5 :高頻元件 16a :元件端子 16b :元件端子 1 7 a .絲線 1 7 b :絲線 1 8 :注封材 19 :金屬膜 2〇 :聚醯亞胺 22a :接地端子 22b :接地端子 -10- 1336510 遮罩圖案 孔部 絕緣基板 接地基板 :電極 :電極 台部 高頻元件 :元件端子 :元件端子 :絲線 :絲線 注封材 金屬膜 聚醯亞胺 :接地端子 :接地端子 聚醯亞胺 配線圖案 5 5 :聚醯亞胺
Claims (1)
1336510 十 0 • (1) 、申請專利範圍 L一種高頻元件模組,其特徵爲具有: 絕緣基板; 高頻元件,配設於該絕緣基板; 注封材,用以覆蓋該高頻元件;以及 金屬層,配設於該注封材之上,且至少一端進行接地 2·—種商頻元件模組,其特徵爲具有: 絕緣基板,於表面配設著電極且於背面配設著接地基 _ 板 , 高頻元件,配設於該絕緣基板,其端子連結於前述電 極 0 , 注封材,用以覆蓋該高頻元件;以及 金屬層,配設於該注封材之上,連結於前述接地基板 • 中 3 ·如申請專利範圍第2項所記載之高頻元件模組,其 前述金屬層係鋁之薄膜。 4. 一種高頻元件模組,其特徵爲具有: 絕緣基板,具有孔部,於表面配設著電極: 接地基板,在該絕緣基板之背面至少覆蓋著前述孔部 極; 高頻元件,配設於前述孔部內,其端子連結於前述電 -12- (2) (2)1336510 注封材,用以覆蓋.該高頻元件;以及 金屬層,配設於該注封材之上,連結於前述接地基板 〇 5.如申請專利範圍第4項所記載之高頻元件模組,其 中 前述金屬層係鋁之薄膜。 6 . —種高頻元件模組,其特徵爲具有: 絕緣基板,於表面配設著電極且於背面配設著接地基 板; 高頻元件,配設於該絕緣基板,其端子連結於前述電 極; 表面保護材,以保護該高頻元件之表面爲目的而塗佈 t 注封材,用以密封塗佈著該表面保護材之前述高頻元 件; 金屬層,配設於該注封材之上,連結於前述接地基板 絕緣層,以覆蓋該金屬層之方式配設; 配線圖案,配設於該絕緣層之上,連結於前述電極; 以及 保護層,配設於該配線圖案之上。 7 ·如申請專利範圍第6項所記載之高頻元件模組,其 中 前述表面保護材係聚醯亞胺。 -13- (3) (3)1336510 8 .如申請專利範圍.第7項所記載之高頻元件模組,其 中 前述金屬層係鋁之薄膜。 9. 如申請專利範圍第8項項所記載之高頻元件模組’ 其中 前述高頻元件係單晶微波積體電路元件。 10. —種高頻元件模組,其特徵爲具有: 絕緣基板,具有孔部,於表面配設著電極; 接地基板,在該絕緣基板之背面至少覆蓋著前述孔部 » 高頻元件,配設於前述孔部內,其端子連結於前述電 極; 表面保護材,以保護該高頻元件之表面爲目的而塗佈 注封材,用以密封塗佈著該表面保護材之前述高頻元 件; 金屬層,配設於該注封材之上,連結於前述接地基板 » 絕緣層,以覆蓋該金屬層之方式配設; 配線圖案,配設於該絕緣層之上,連結於前述電極; 以及 保護層,配設於該配線圖案之上。 1 1.如申請專利範圍第1 0項所記載之高頻元件模組, 其中 -14- (4) (4)1336510 前述表面保護材係.聚醯亞胺。 1 2 ·如申請專利範圍第1 1項所記載之高頻元件模組, 其中 前述金屬層係鋁之薄膜。 1 3 ·如申請專利範圍第1 2項項所記載之高頻元件模組 ,其中 前述高頻元件係單晶微波積體電路元件。 14· 一種高頻元件模組之製造方法,其特徵爲: 於表面配設著電極且於背面配設著接地基板之絕緣基 板之上,配設其端子連結於前述電極之高頻元件, 利用注封材覆蓋該高頻元件, 於該注封材之上,配設金屬層, 將該金屬層連結至前述接地基板。 15. —種高頻元件模組之製造方法,其特徵爲: 於表面配設著電極且於背面配設著接地基板之絕緣基 板之上,配設其端子連結於前述電極之高頻元件, 於該高頻元件塗佈以保護其表面爲目的之表面保護材 j 利用注封材密封塗佈著該表面保護材之前述高頻元件 > 於該注封材之上,配設連結於前述接地基板之金屬層 , 以覆蓋該金屬層之方式配設絕緣層, 於該絕緣層之上,配設連結於前述電極之配線圖案, -15- (5) (5)1336510
於該配線圖案之上.,配設保護層。 1 6 .如申請專利範圍第1 5項所記載之高頻元件模組之 製造方法,其中 前述表面保護材係聚醯亞胺。 -16-
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US9137934B2 (en) | 2010-08-18 | 2015-09-15 | Rf Micro Devices, Inc. | Compartmentalized shielding of selected components |
US8835226B2 (en) | 2011-02-25 | 2014-09-16 | Rf Micro Devices, Inc. | Connection using conductive vias |
US9627230B2 (en) | 2011-02-28 | 2017-04-18 | Qorvo Us, Inc. | Methods of forming a microshield on standard QFN package |
US9807890B2 (en) | 2013-05-31 | 2017-10-31 | Qorvo Us, Inc. | Electronic modules having grounded electromagnetic shields |
US11127689B2 (en) | 2018-06-01 | 2021-09-21 | Qorvo Us, Inc. | Segmented shielding using wirebonds |
US11219144B2 (en) | 2018-06-28 | 2022-01-04 | Qorvo Us, Inc. | Electromagnetic shields for sub-modules |
US11114363B2 (en) | 2018-12-20 | 2021-09-07 | Qorvo Us, Inc. | Electronic package arrangements and related methods |
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JP4690938B2 (ja) | 2011-06-01 |
US20080203561A1 (en) | 2008-08-28 |
KR100987089B1 (ko) | 2010-10-11 |
US7635918B2 (en) | 2009-12-22 |
DE112007000081T5 (de) | 2009-04-23 |
CN101361180B (zh) | 2012-11-28 |
WO2007132560A1 (ja) | 2007-11-22 |
CN101361180A (zh) | 2009-02-04 |
JP2007311396A (ja) | 2007-11-29 |
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