Technology Roadmap in Solar Screen

FAITHFUL’s Development in Solar Cell Application --Three Key Products

1. Efficiency Advance + Cost down
   • The Best solution is E-Stensol E1
2. Cost down
   • The best solution is BD Screen + D5-2 Process Screen
   • E-Stensol E1 and BD Screen’s performance are certified by solar manufacturers’ mass production.
   • The Evaluation of α-StenSol and E-StenSol E2 Will be finished by Solar Cell Customers in 2016 Q4

Technology High Light

R&D Advanced Screen

1. α StenSol (Single)
2. E-StenSol E2 (Dual)

The Comparison Table with Different Advanced Screen

ITEM	Competitor-Taiwan	Competitor-Japen	FAITHFUL D9 Screen(NEW)	FAITHFUL D9 + BD Screen(NEW)	FAITHFUL E-StenSol E1
Benefit (NTD/Wafer)	Ref	(+0.04)	(+)0.16	(+)0.48	(+)0.84
Design Opening(um) – Squeegee	35+/-3	35+/-3	35+/-3	35+/-3	33+/-2
Finger Width (After Firing)	50~55um	50~55um	50~55um	50~55um	45~50um
Laydown(g/cell)	0.135	0.135	0.135	0.125 (-8%)	0.104 (-30%)
Printing Speed(mm/sec)	200	200	250	250	250
EFF	Ref	-0.03%	Comparable	Comparable	+0.03~0.07%
Screen Life-Time(Prints)	12K~18K	15K~22K	18~25k	18~25k	30~50K

E-StenSol E1

E1 E-StenSol Product Structure

E1 E-StenSol Efficiency Characteristics.

※Efficiency Gain : +0.03~0.07%

Condition	STD			E-STENSOL
	Med	Avg	Stdev	Med	Avg	Stdev
ETa	19.857%	19.836%	0.355%	19.913%	19.906%	0.068%
Voc	0.6436	0.6436	0.0010	0.6439	0.6439	0.0006
Isc	9.4272	9.4221	0.1101	9.4371	9.4393	0.0304
FF	79.476	79.429	0.690	79.545	79.535	0.201
Rs	0.00261	0.00264	0.00059	0.00254	0.00255	0.00013

The structure difference between E-StenSol and Normal Screen

R&D Advanced - E-StenSol E2

Advantage :

• Ultra Fine Line → 20um
• High Aspect Ratio Finger → >0.45
• Uniform Finger → < 2 um
• Target Efficiency Gain → >0.3%

R&D Advanced α–StenSol (Single Printing)

The Capacity Plan of E-Forming Products (Solar Screen Only)