JPS5477592A - Solar battery - Google Patents

Solar battery

Info

Publication number
JPS5477592A
JPS5477592A JP14480677A JP14480677A JPS5477592A JP S5477592 A JPS5477592 A JP S5477592A JP 14480677 A JP14480677 A JP 14480677A JP 14480677 A JP14480677 A JP 14480677A JP S5477592 A JPS5477592 A JP S5477592A
Authority
JP
Japan
Prior art keywords
wafer
sio
layer
opened
substrate
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.)
Pending
Application number
JP14480677A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Isobe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP14480677A priority Critical patent/JPS5477592A/en
Publication of JPS5477592A publication Critical patent/JPS5477592A/en
Pending legal-status Critical Current

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

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

PURPOSE: To eliminate uneven plating and adhesion defect by keeping substrate at a base potential and flowing a minute current only for the initial extremely short time in order to give catalytic action to the substrate.
CONSTITUTION: After SiO2 2 is made by subjecting an n type Si substrate, which has been left intact after polishing, to wet oxidation, it is opened with a hole, where a P+ layer 3 is made. Again, the surface is covered with the SiO2 2, in which a hole is opened and phosphorus is diffused therethrough to make an N+ layer 4. The SiO2 is removed, newly SiO2 is provided, and a window is opened on the layer 4. After B is diffused and etching is lightly performed, a wafer 7 is put in an electroless Ni plating solution of about 60°C. Here, the wafer is made negative potential and the platinum positive potential. The negative pole is connected only at one position of the exposed P+ layer 3 of one solar battery element in the wafer and current is supplied for 10 seconds at 25mA/cm2. Next , the power source is turned OFF when intensive gas evolves and at the same time the color of Ni is formed in the electrode forming portions of the wafer. Next, the wafer is dipped for 10 minutes in the electroless Ni plating solution to make Ni electrodes 5. This method eliminaties uneven plating and adhesion defect despite observation with a microscope.
COPYRIGHT: (C)1979,JPO&Japio
JP14480677A 1977-12-02 1977-12-02 Solar battery Pending JPS5477592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14480677A JPS5477592A (en) 1977-12-02 1977-12-02 Solar battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14480677A JPS5477592A (en) 1977-12-02 1977-12-02 Solar battery

Publications (1)

Publication Number Publication Date
JPS5477592A true JPS5477592A (en) 1979-06-21

Family

ID=15370887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14480677A Pending JPS5477592A (en) 1977-12-02 1977-12-02 Solar battery

Country Status (1)

Country Link
JP (1) JPS5477592A (en)

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