Flex Solder Mask for COF | PRODUCTS | SHIIMA ELECTRONICS INC.

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The demand for higher reliability of COF for LCD driver IC is increasing since LCD TV and PC screen has advanced higher performance.
Nippon Polytech Corp. [ NPR-3300 ] was developed to answer to solve such strong demand from customers.
[ NPR-3300 ] has already approved by various customers, achieving to Halogen free which past solder resist products couldn't adapt.


				Possessing an excellent characteristic of electrical
				properties.(HHBT, HAST)
				Achieving to Halogen free. (JPCA standard, IEC standard)
				Excellent adaptability to Sn pre-plated COF as NPR-3300's lower curing temp.(120ºC)

				Maintaining a flatness of FPC after curing process.
				Excellent flexibility.


Characteristics
ITEM	Typical Value	Test Condition
HHBT	PASS	85ºC,85%RH,1000hrs,15/15µm(L/S),60V DC
HAST	PASS	120ºC,85%RH,200hrs,15/15µm(L/S),60V DC
Tensile modulus	≤ 500 Mpa	Tensile tester 5.0mm/min
Breakdown elongation	≥ 100%	Tensile tester 5.0mm/min
Bending resistance	≥ 130 times	200µmPitch MIT,±135ºC,175rpm,
		0.38mmR,250gWeight
Volume resistance	1.0 x 10¹⁵Ω•cm	JIS C 6471-7-1,23ºC,50%RH,500V DC,1min
Warpage	≤ 1mm	40mm x 30mm COF Test coupon

The value in the table is measured by Nippon Polytech Corp. based on each test method, so that these values are not guaranteed.