JP7184599B2 - 半導体発光装置 - Google Patents
半導体発光装置 Download PDFInfo
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- JP7184599B2 JP7184599B2 JP2018208521A JP2018208521A JP7184599B2 JP 7184599 B2 JP7184599 B2 JP 7184599B2 JP 2018208521 A JP2018208521 A JP 2018208521A JP 2018208521 A JP2018208521 A JP 2018208521A JP 7184599 B2 JP7184599 B2 JP 7184599B2
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Description
図1~図12は、本開示の第1実施形態に係る半導体発光装置を示している。本実施形態の半導体発光装置A1は、支持体1、半導体発光素子4、カバー5および封止樹脂71を備えている。
354に導通している。導電層457は、開口4571を有する。
図13および図14は、半導体発光装置A1の第1変形例を示している。本例の半導体発光装置A11は、基材層51に退避面51cが設けられている。
図15および図16は、半導体発光装置A1の第2変形例を示している。本例の半導体発光装置A12は、起伏部510と第3面13(第3面23)との関係が上述した例と異なっている。
図17~図18は、半導体発光装置A1の第3変形例を示している。本例の半導体発光装置A13は、起伏部510の形状が上述した例と異なっている。
図20は、本開示の第2実施形態に係る半導体発光装置を示している。本実施形態の半導体発光装置A2は、起伏部510の具体的構成が、上述した実施形態と異なっている。本実施形態においては、起伏部510は、裏面51bよりも表面粗さが粗い粗面によって構成されている。
図21~図23は、本開示の第3実施形態に係る半導体発光装置を示している。本実施形態の半導体発光装置A3は、起伏部510の具体的構成が、上述した実施形態と異なっている。
図24は、本開示の第4実施形態に係る半導体発光装置A4を示す断面図である。本実施形態の支持体1は、半導体発光装置A1の支持体1と類似の構成であるものの、具体的構造が異なり、いわゆる多層配線基板からなる。
図25は、本開示の第5実施形態に係る半導体発光装置A5を示す断面図である。本実施形態の支持体1は、半導体発光装置A1の支持体1と類似の構成であるものの、具体的構造が異なり、いわゆるセラミック配線基板からなる。
半導体発光素子と、
基材および導電部を有し、前記半導体発光素子を支持する支持体と、
第1方向視において前記半導体発光素子に重なり且つ前記半導体発光素子からの光を透過させるカバーと、を備えており、
前記カバーは、前記半導体発光素子からの光を透過させ且つ前記第1方向において互いに反対側を向く表面および裏面を有する基材層を含み、
前記裏面は、前記半導体発光素子と対向しており、
前記基材層は、接合材によって前記支持体に接合された起伏部を有しており、
前記起伏部は、前記裏面よりも凹凸状である、半導体発光装置。
〔付記2〕
前記起伏部は、前記第1方向において前記裏面と同じ側を向き且つ前記裏面よりも前記第1方向において前記表面側に位置する第1面を有する、付記1に記載の半導体発光装置。
〔付記3〕
前記起伏部は、前記第1方向において前記裏面と前記第1面との間に位置し且つ前記第1方向と直角である第2方向を向く第2面を有する、付記2に記載の半導体発光装置。
〔付記4〕
前記起伏部は、前記第2方向において前記第2面が向く側に開放されている、付記3に記載の半導体発光装置。
〔付記5〕
前記起伏部は、前記第1方向において前記裏面と前記第1面との間に位置し且つ前記第1方向および前記第2方向と直角である第3方向を向く第3面を有する、付記4に記載の半導体発光装置。
〔付記6〕
前記起伏部は、前記第3方向において前記第3面が向く側に開放されている、付記5に記載の半導体発光装置。
〔付記7〕
前記基材層は、前記第2方向に互いに離間した2つの前記起伏部を有する、付記6に記載の半導体発光装置。
〔付記8〕
前記基材層は、前記第3方向に互いに離間した2つの前記起伏部を有する、付記6または7に記載の半導体発光装置。
〔付記9〕
前記起伏部は、前記第1方向視において前記裏面を囲む環状である、付記6に記載の半導体発光装置。
〔付記10〕
前記起伏部は、前記第1方向視において閉じた形状である穴である、付記2に記載の半導体発光装置。
〔付記11〕
前記起伏部は、前記裏面よりも表面粗さが粗い粗面からなる、付記1に記載の半導体発光装置。
〔付記12〕
前記支持体は、前記半導体発光素子が配置され且つ前記第1方向を向く第1面、前記第1面とは反対側を向く第2面、前記第1面と同じ側を向き且つ前記第1面よりも前記第2面から離間するとともに前記第1方向視において前記第1面を囲む第3面および前記第1面と前記第3面との間に介在する第4面を有し、
前記カバーは、前記第3面に支持されている、付記1ないし11のいずれかに記載の半導体発光装置。
〔付記13〕
前記基材層は、前記第1方向において前記表面と同じ側を向き且つ前記第1方向において前記表面よりも前記裏面側に位置するとともに前記第1方向視において前記裏面および前記半導体発光素子と重なる退避面を有する、付記1ないし12のいずれかに記載の半導体発光装置。
〔付記14〕
前記カバーは、前記半導体発光素子からの光を拡散させる拡散層を含む、付記1ないし13のいずれかに記載の半導体発光装置。
〔付記15〕
前記拡散層は、前記第1方向視において、前記裏面および前記半導体発光素子と重なる、付記14に記載の半導体発光装置。
〔付記16〕
前記起伏部は、前記拡散層から露出している、付記15に記載の半導体発光装置。
〔付記17〕
前記半導体発光素子は、VCSEL素子である、付記1ないし16のいずれかに記載の半導体発光装置。
1 :支持体
2 :基材
3 :導電部
4 :半導体発光素子
5 :カバー
11 :第1面
12 :第2面
13 :第3面
14 :第4面
15 :第5面
16 :第6面
17 :第7面
18 :第8面
21 :第1面
22 :第2面
23 :第3面
24 :第4面
25 :第5面
26 :第6面
27 :第7面
28 :第8面
31 :第1リード
32 :第2リード
38a :第10部
38b :第11部
41 :第1電極
42 :第2電極
48 :導電性接合材
49 :ワイヤ
51 :基材層
51a :表面
51b :裏面
51c :退避面
52 :拡散層
57 :接合材
71 :封止樹脂
201 :第1層
202 :第2層
203 :第3層
311 :第1面
312 :第2面
315 :主部
316 :縁部
317 :延出部
321 :第1面
322 :第2面
325 :主部
326 :縁部
327 :延出部
331 :第1面
341 :第1面
381 :第1部
382 :第2部
383 :第3部
385 :第5部
386 :第6部
387 :第7部
389 :第9部
451 :第2基板
452 :第4半導体層
453 :活性層
454 :第5半導体層
455 :電流狭窄層
456 :絶縁層
457 :導電層
460 :発光領域
510 :起伏部
511 :第1面
512 :第2面
513 :第3面
4551,4561,4571:開口
Claims (8)
- 半導体発光素子と、
基材および導電部を有し、前記半導体発光素子を支持する支持体と、
第1方向視において前記半導体発光素子に重なり且つ前記半導体発光素子からの光を透過させるカバーと、を備えており、
前記カバーは、前記半導体発光素子からの光を透過させ且つ前記第1方向において互いに反対側を向く表面および裏面を有する基材層を含み、
前記裏面は、前記半導体発光素子と対向しており、
前記基材層は、接合材によって前記支持体に接合された起伏部を有しており、
前記起伏部は、前記第1方向において前記裏面と同じ側を向き且つ前記裏面よりも前記第1方向において前記表面側に位置する第1面、前記第1方向において前記裏面と前記第1面との間に位置し且つ前記第1方向と直角である第2方向を向く第2面、および前記第1方向において前記裏面と前記第1面との間に位置し且つ前記第1方向および前記第2方向と直角である第3方向を向く第3面、を有し、
前記起伏部は、前記第2方向において前記第2面が向く側に開放し、且つ、前記第3方向において前記第3面が向く側に開放されており、
前記基材層は、前記第2方向および前記第3方向に沿った二組の辺を有する矩形状であり、且つ前記第2方向に互いに離間した2つの前記起伏部および前記第3方向に互いに離間した2つの前記起伏部を含む、四隅に配置された4つの前記起伏部を有し、
前記接合材のうち前記起伏部と前記支持体との間に位置する部分の前記第1方向の厚さは、前記接合材のうち前記裏面と前記支持体との間に位置する部分の前記第1方向の厚さよりも厚い、半導体発光装置。 - 前記基材層は、前記第2方向を短手方向とし、前記第3方向を長手方向とする長矩形状であり、
前記4つの起伏部は、各々が前記第2方向を長手方向とする形状である、請求項1に記載の半導体発光装置。 - 前記支持体は、前記半導体発光素子が配置され且つ前記第1方向を向く第1面、前記第1面とは反対側を向く第2面、前記第1面と同じ側を向き且つ前記第1面よりも前記第2面から離間するとともに前記第1方向視において前記第1面を囲む第3面および前記第1面と前記第3面との間に介在する第4面を有し、
前記カバーは、前記第3面に支持されている、請求項1または2に記載の半導体発光装置。 - 前記基材層は、前記第1方向において前記表面と同じ側を向き且つ前記第1方向において前記表面よりも前記裏面側に位置するとともに前記第1方向視において前記裏面および前記半導体発光素子と重なる退避面を有する、請求項1ないし3のいずれかに記載の半導体発光装置。
- 前記カバーは、前記半導体発光素子からの光を拡散させる拡散層を含む、請求項1ないし4のいずれかに記載の半導体発光装置。
- 前記拡散層は、前記第1方向視において、前記裏面および前記半導体発光素子と重なる、請求項5に記載の半導体発光装置。
- 前記起伏部は、前記拡散層から露出している、請求項6に記載の半導体発光装置。
- 前記半導体発光素子は、VCSEL素子である、請求項1ないし7のいずれかに記載の半導体発光装置。
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