JPH0610704Y2 - Diode for solar cell device - Google Patents
Diode for solar cell deviceInfo
- Publication number
- JPH0610704Y2 JPH0610704Y2 JP13476388U JP13476388U JPH0610704Y2 JP H0610704 Y2 JPH0610704 Y2 JP H0610704Y2 JP 13476388 U JP13476388 U JP 13476388U JP 13476388 U JP13476388 U JP 13476388U JP H0610704 Y2 JPH0610704 Y2 JP H0610704Y2
- Authority
- JP
- Japan
- Prior art keywords
- diode
- solar cell
- cell device
- adhesive
- diode chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本発明は、人工衛星等に搭載される太陽電池装置用ダイ
オードに関するものであり、さらに詳しく述べれば太陽
電池アレイ基板上に並べて取り付けられる太陽電池セル
形状のバイパスダイオード若しくはブロッキングダイオ
ードに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a diode for a solar cell device mounted on an artificial satellite or the like, and more specifically, a solar cell mounted side by side on a solar cell array substrate. The present invention relates to a cell-shaped bypass diode or blocking diode.
〈発明の概要〉 本発明は太陽電池装置用ダイオードチップの表面保護及
び遮光のためダイオードチップに接着するオプティカル
ソーラーリフレクタの端部を鈍角に形成し、且つシリコ
ーン樹脂等の接着剤で端部を被覆することによって、端
部での全面反射による遮光効果を得るとともに反射膜の
腐蝕を防止することを図るものである。<Summary of the Invention> The present invention forms an obtuse angle at the end of an optical solar reflector that adheres to a diode chip for solar cell device diode surface protection and light shielding, and covers the end with an adhesive such as a silicone resin. By doing so, it is possible to obtain a light-shielding effect due to the total reflection at the edges and prevent corrosion of the reflective film.
〈従来の技術〉 従来から太陽電池アレイの逆バイアス電圧印加時の保護
等を企図してバイパスダイオードを太陽電池アレイと並
列に、またブロッキングダイオードを直列に結線して使
用している。これらの太陽電池装置用ダイオードは、人
工衛星に搭載する場合、スペースファクタ等の点で第３
図に示すように太陽電池セルと類似の構造を持ち、太陽
電池アレイ基板に太陽電池セルと並べて取り付けて太陽
電池装置を構成している。<Prior Art> Conventionally, a bypass diode is connected in parallel with a solar cell array and a blocking diode is connected in series to protect the solar cell array when a reverse bias voltage is applied. When mounted on an artificial satellite, these solar cell device diodes are third
As shown in the figure, the solar cell has a structure similar to that of the solar cell, and is mounted side by side with the solar cell on a solar cell array substrate to form a solar cell device.
この太陽電池装置用ダイオード（以下、ダイオードと略
す）は、半導体母材１ａ，不純物拡散層１ｂ，パッシベ
ーション膜１ｃ，表面電極１ｄ，裏面電極１ｅより成る
ダイオードチップ１に配線用のインターコネクタ２を接
続し、さらにガラス板３に銀等の金属薄膜による反射膜
４及び一酸化硅素(SiO)等の保護膜５を積層して形成さ
れるオプティカルソーラーリフレクタ(Optical Solar R
eflector…以下ＯＳＲと略す）６をシリコーン樹脂等の
接着剤７によって接着して構成されている。尚、ＯＳＲ
６はダイオードチップ１の表面保護と光入射によるダイ
オード特性の低下を防止するための遮光機能を伴わせ持
っている。This solar cell device diode (hereinafter, abbreviated as a diode) connects a wiring interconnector 2 to a diode chip 1 including a semiconductor base material 1a, an impurity diffusion layer 1b, a passivation film 1c, a front surface electrode 1d, and a back surface electrode 1e. In addition, an optical solar reflector (Optical Solar R) formed by further laminating a reflection film 4 made of a metal thin film such as silver and a protection film 5 made of silicon monoxide (SiO) on the glass plate 3
An eflector (hereinafter abbreviated as OSR) 6 is bonded by an adhesive 7 such as a silicone resin. OSR
Reference numeral 6 also has a light-shielding function for protecting the surface of the diode chip 1 and preventing deterioration of the diode characteristics due to incidence of light.
〈発明が解決しようとする課題〉 以上のような構造のダイオードにおいて、ＯＳＲ６の端
部に反射膜４が露出しており、高温高湿の状況下で露出
部分から腐食を発生し、反射膜４がガラス板３から剥離
し、ダイオードチップ１の表面保護及び遮光機能を損う
問題があった。人工衛星搭載の太陽電池装置は極めて高
い信頼性が必要であり、改善が望まれていた。<Problems to be Solved by the Invention> In the diode having the structure described above, the reflective film 4 is exposed at the end of the OSR 6, and corrosion occurs from the exposed part under high temperature and high humidity conditions. Was peeled off from the glass plate 3 to impair the surface protection and light shielding function of the diode chip 1. The solar cell device mounted on the artificial satellite requires extremely high reliability, and improvement has been desired.
本発明は以上の事情に鑑みなされたものであり腐蝕の生
じ難い高信頼性の太陽電池装置用ダイオードを提供する
ことを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a highly reliable diode for a solar cell device in which corrosion is unlikely to occur.
〈課題を解決するための手段〉 以上の課題を解決するために本発明のダイオードは、ダ
イオードチップの対向面の端部を鈍角に形成したＯＳＲ
を接着剤でダイオードチップに接着するとともに、前記
端部を前記接着剤で被覆して形成する。<Means for Solving the Problems> In order to solve the above problems, the diode of the present invention is an OSR in which the end portion of the facing surface of the diode chip is formed at an obtuse angle.
Is adhered to the diode chip with an adhesive, and the end portion is covered with the adhesive to be formed.
〈作用〉 上記構成とすることにより、ＯＳＲ端部の反射膜が接着
剤によって封止され、反射膜の腐蝕が防止される。ま
た、ＯＳＲ端部に入射した光は、ＯＳＲと接着剤の界面
で全反射することによって遮光効果が得られる。<Operation> With the above configuration, the reflective film at the end of the OSR is sealed with the adhesive and corrosion of the reflective film is prevented. In addition, the light incident on the edge of the OSR is totally reflected at the interface between the OSR and the adhesive to obtain a light blocking effect.
〈実施例〉 以下、本発明の一実施例を第１図及び第２図に基づいて
説明する。第１図は本発明ダイオードの一実施例を示す
断面図、第２図は第１図の部分拡大図である。<Example> An example of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a sectional view showing an embodiment of the diode of the present invention, and FIG. 2 is a partially enlarged view of FIG.
このダイオードは、半導体母材１１ａ，不純物拡散層１
１ｂ，パッシベーション膜１１ｃ，表面電極１１ｄ，裏
面電極１１ｅによってなるダイオードチップ１１に配線
用のインターコネクタ１２を接続し、さらにガラス板１
３に銀等の金属薄膜による反射膜１４及び保護膜１５を
積層し、端部１６ａを角度研磨して形成されたＯＳＲ１
６をシリコーン樹脂等の接着剤１７によって接着すると
ともに端部１６ａを被覆した構造となっている。次に同
実施例の部分拡大図を第２図に示す。第２図においてガ
ラス板１３の屈折率をn1，接着剤１７の屈折率をn2とす
ると、臨界角ｉ＝SiN-1(n2/n1)以上の角度で入射した光
は、ガラス板１３と接着剤１７の界面で全反射し、ダイ
オードチップ１１には到達しない。例えばガラス板１３
に英国ピルキントン パーキン エルマー社製のセリウ
ム添付マイクロシートＣＭＸを用いた場合、その屈折率
n1は1.５３であり、また接着剤としてトーレ・シリコー
ン社のシリコーン樹脂ＳＨ１８４０を用いた場合、その
屈折率n2は1.４３である。この条件下で全反射が起きる
臨界角ｉはｉ＝ｓｉｎ-1（1.４３／1.５３）から６9.２
度となる。従ってＯＳＲ１６の端部１６ａの角度θを１
１0.８°以上となるように角度研磨すれば垂直入射光は
ダイオードチップ１１に達しない。This diode includes a semiconductor base material 11a and an impurity diffusion layer 1
An interconnector 12 for wiring is connected to a diode chip 11 composed of 1b, a passivation film 11c, a front surface electrode 11d, and a back surface electrode 11e.
OSR1 formed by laminating a reflective film 14 and a protective film 15 made of a metal thin film such as silver on 3 and angle-polishing the end 16a.
6 is adhered by an adhesive 17 such as a silicone resin, and the end portion 16a is covered. Next, a partially enlarged view of the same embodiment is shown in FIG. In FIG. 2, assuming that the refractive index of the glass plate 13 is n 1 and the refractive index of the adhesive 17 is n 2 , the light incident at an angle equal to or greater than the critical angle i = SiN −1 (n 2 / n 1 ) is the glass. It is totally reflected at the interface between the plate 13 and the adhesive 17, and does not reach the diode chip 11. For example, glass plate 13
When the microsheet CMX with cerium made by Pilkington Perkin Elmer Co. of England was used for the
n 1 is 1.53, and when a silicone resin SH1840 manufactured by Toray Silicone Co., Ltd. is used as an adhesive, its refractive index n 2 is 1.43. The critical angle i under which total reflection occurs is i = sin −1 (1.43 / 1.53) to 69.2.
It becomes degree. Therefore, the angle θ of the end portion 16a of the OSR 16 is set to 1
Vertically incident light does not reach the diode chip 11 if it is angle-polished to be 10.8 ° or more.
〈発明の効果〉 以上説明したように本発明の太陽電池装置用ダイオード
は、オプティカル ソーラー リフレクタの端部を鈍角
に形成し、且つ接着剤で被覆しているため、遮光機能を
損なわずに反射膜の腐蝕を抑制でき、特に高信頼性が要
求される人工衛星用の太陽電池装置システムが提供でき
る。<Effects of the Invention> As described above, in the diode for a solar cell device of the present invention, since the end portion of the optical solar reflector is formed to have an obtuse angle and is covered with an adhesive, the light-shielding function is not impaired. It is possible to provide a solar cell device system for an artificial satellite that can suppress the corrosion of the solar cell and that requires particularly high reliability.
第１図は本発明の一実施例を示す断面図、第２図は同実
施例の部分拡大図、第３図は従来の太陽電池装置用ダイ
オードの断面図である。 １１……ダイオードチップ、１２……インターコネク
タ、１３……ガラス板、１４……反射膜、１５……保護
膜、１６……オプティカルソーラーリフレクタ、１６ａ
……端部、１７……接着剤。FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a partially enlarged view of the same embodiment, and FIG. 3 is a sectional view of a conventional solar cell device diode. 11 ... Diode chip, 12 ... Interconnector, 13 ... Glass plate, 14 ... Reflective film, 15 ... Protective film, 16 ... Optical solar reflector, 16a
…… End, 17 …… Adhesive.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｌ 29/91 Ｚ 7376−4Ｍ 31/04 Ｃ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location H01L 29/91 Z 7376-4M 31/04 C
Claims (1)
るオプティカルソーラーリフレクタをダイオードチップ
上に接着剤を介して接着した太陽電池装置用ダイオード
において、前記オプティカルソーラーリフレクタのダイ
オードチップ対向面の端部を鈍角に形成し、且つ該端部
を前記接着剤で被覆したことを特徴とする太陽電池装置
用ダイオード。1. A diode for a solar cell device in which an optical solar reflector formed by laminating a reflection film and a protective film on a glass plate is adhered onto a diode chip via an adhesive, wherein a surface of the optical solar reflector facing the diode chip is A diode for a solar cell device, characterized in that an end portion is formed to have an obtuse angle and the end portion is covered with the adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13476388U JPH0610704Y2 (en) | 1988-10-14 | 1988-10-14 | Diode for solar cell device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13476388U JPH0610704Y2 (en) | 1988-10-14 | 1988-10-14 | Diode for solar cell device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0256464U JPH0256464U (en) | 1990-04-24 |
| JPH0610704Y2 true JPH0610704Y2 (en) | 1994-03-16 |
Family
ID=31393808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13476388U Expired - Lifetime JPH0610704Y2 (en) | 1988-10-14 | 1988-10-14 | Diode for solar cell device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610704Y2 (en) |
-
1988
- 1988-10-14 JP JP13476388U patent/JPH0610704Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0256464U (en) | 1990-04-24 |
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