Invention Grant
- Patent Title: Process for the production of a MWT silicon solar cell
- Patent Title (中): 生产MWT硅太阳能电池的工艺
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Application No.: US12963003Application Date: 2010-12-08
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Publication No.: US08227292B2Publication Date: 2012-07-24
- Inventor: Kenneth Warren Hang , Giovanna Laudisio , Alistair Graeme Prince , Richard John Sheffield Young
- Applicant: Kenneth Warren Hang , Giovanna Laudisio , Alistair Graeme Prince , Richard John Sheffield Young
- Applicant Address: US DE Wilmington
- Assignee: E I du Pont de Nemours and Company
- Current Assignee: E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/50 ; H01L21/48 ; H01L21/44 ; H01L21/4763
Abstract:
A process for the production of a MWT silicon solar cell comprising the steps: (1) providing a p-type silicon wafer with (i) holes forming vias between the front-side and the back-side of the wafer and (ii) an n-type emitter extending over the entire front-side and the inside of the holes, (2) applying a conductive metal paste to the holes of the silicon wafer to provide at least the inside of the holes with a metallization, (3) drying the applied conductive metal paste, and (4) firing the dried conductive metal paste, whereby the wafer reaches a peak temperature of 700 to 900° C., wherein the conductive metal paste has no or only poor fire-through capability and comprises (a) at least one particulate electrically conductive metal selected from the group consisting of silver, copper and nickel and (b) an organic vehicle.
Public/Granted literature
- US20110139238A1 PROCESS FOR THE PRODUCTION OF A MWT SILICON SOLAR CELL Public/Granted day:2011-06-16
Information query
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