skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Laser process and corresponding structures for forming contact holes of solar cells

Patent ·
OSTI ID:1637772
; ; ; ; ;

Contact holes of solar cells are formed by laser ablation to accommodate various solar cell designs. Use of a laser to form the contact holes is facilitated by replacing films formed on the diffusion regions with a film that has substantially uniform thickness. Contact holes may be formed to deep diffusion regions to increase the laser ablation process margins. The laser configuration may be tailored to form contact holes through dielectric films of varying thicknesses.

Research Organization:
SunPower Corp., San Jose, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-07GO17043
Assignee:
SunPower Corporation (San Jose, CA)
Patent Number(s):
10,608,126
Application Number:
15/794,406
OSTI ID:
1637772
Resource Relation:
Patent File Date: 10/26/2017
Country of Publication:
United States
Language:
English

References (10)

Methods for forming mutiple-layer electrode structures for silicon photovoltaic cells patent-application September 2009
Solar cell with reduced base diffusion area patent March 2014
Array of small contacts for solar cell fabrication patent-application December 2008
Electroluminescent display construction using printing technology patent-application June 2006
Back-contact photovoltaic cells patent-application June 2006
Photovoltaic cell and process for producing the same patent-application April 2002
Method of fabricating back surface point contact solar cells patent May 1990
Manufacturing a solar cell with backside contacts patent-application January 2005
Solar Cell with Reduced Base Diffusion Area patent-application July 2014
Solar cell with reduced base diffusion area patent August 2011

Similar Records

Related Subjects

14 SOLAR ENERGY