Elga Europe OPSR 5600 SPNM/SPNG. PRODUCT DATA SHEET Edition October 2015 PRODUCT DESCRIPTION

Transcription

1 Elga Europe OPSR 5600 SPNM/SPNG PRODUCT DATA SHEET Edition October 2015 PRODUCT DESCRIPTION OPSR 5600 SPNM and SPNG are a liquid photo-definable solder mask that is composed of two components. These advanced materials can be applied using screen printing and spray techniques. High productivity with yields in order of sqm/ kg (depending on application). OPSR 5600 products exhibit the following performance properties: Wide process latitude enabling fine image reproduction with clean PTH/Via development. Resistant to multiple soldering operations. Excellent Reliability. Resistant to downstream processing chemicals including no-clean fluxes, cleaners, solvents, etc. Superior chemical and electrical properties of OPSR 5600 with excellent resistance to all common process finishes (HASL, Immersion Tin, Silver and Nickel Gold). High resolution capability: with production proven imaging capabilities, OPSR 5600 will consistently resolve 2.0 mils features between SMD s with vertical sidewall profiles, unobtainable with solvent developed systems. RoHS and Reach compliant. Fully compatible with adhesives, underfills, and assembly rework processes. Meets or exceeds IPC SM 840E specifications. UL File QMJU2.E306258, rated 94 V-0. Form EE.P32.FT Page 1 of 9

2 PHISICAL CHEMICAL PROPERTIES PROPERTY COLOUR FINISH MIX RATIO VISCOSITY (INK + HARDNER) SOLID CONTENT VALUE Black Glossy or Matt 85% Ink 15% Hardener Ps at 25 C Viscotester VT04 75% w/w PARTICLE SIZE < 5 µm POT LIFE SHELF LIFE Maximum 48 h at 25 C in a dark place 6 months (5 25 C) in original package INK PREPARATION OPSR 5600 SPNM and SPNG are supplied as pre-weighed, two component products. Briefly premix the individual components prior to addition of the catalyst into the ink. Thoroughly blend until a homogenous mixture is obtained (See Mixing ratio in the product code table). Allow the mix to sit for ~ 15 minutes in its sealed container prior to use. Briefly remix prior to use. The pot life of the mixed material is 48 hours provided the material is stored in its original sealed containers. Keep away from heat and strong light sources. Form EE.P32.FT Page 2 of 9

3 RECOMMENDED PROCESS FLOW & OPERATING PARAMETERS PROCESS MIXING SURFACE TREATMENT SCREEN PRINTING (1 st Side) PARAMETERS 24 hours conditioning time at working room temperature, before use, is recommended. The product is supplied as two components that has to be mixed with mixing ratio ink/hardener = 85/15. Add OPSR Thinner solvent to obtain desired viscosity value (25-40% for spray applications). Conditioning time, after mixing, is recommended: min. Brushing (Rz = 1.5-3µm / Ra = µm) Pumice (Pumice grade FFF ; %) Microetch (Etch Rate > 1.0 µm) T polyester treats/cm 2 ( mesh) Screen Tension: N Squeegee: Shore PRE-BAKING minutes at 75 C COOLING SCREEN PRINTING (2 nd Side) After 15 minutes at room temperature second side processing is possible T polyester treats/cm 2 ( mesh) Screen Tension: N Squeegee: Shore PRE-BAKING minutes at 75 C COOLING EXPOSURE DEVELOPING After 20 minutes at room temperature Exposure is possible mj/cm 2 Stouffer Tablet 21 Steps =Step 9 13 Na 2 CO 3 /K 2 CO 3 : % Temperature: C Contact Time: sec Pressure: Bar FINAL CURE minutes at 150 C PANEL PRE-TREATMENT Most conventional panels pre-treatments will work with OPSR 5600 SPNM and SPNG. This includes brushing, pumice or jet scrubbing, aluminium oxide jets or chemical cleaning. With the aim to obtain the maximum performance of adhesion and chemical resistance in all finishes processes we recommend to use TechniEtch D-688TC as surface preparation. The requirement is that the substrate must be clean, free from oxides or chemical residues and perfectly dry. Also, the material should be free from handling soils and oils, machine oils and airborne particles. Form EE.P32.FT Page 3 of 9

4 Screen Printing OPSR 5600 SPNM and SPNG are formulated for use on all hand screening tables, as well as automatic single sided flatbed screen printing apparatus. Follow equipment manufacturer s recommendations for the operation of any automated screening equipment. Polyester mesh counts from treats/cm 2 ( mesh) should be used. Screen tension should be uniform and a minimum of 20 N/cm 2. Squeegee Shore hardness should be shore. Flood/print sequencing should be used to ensure adequate fill between circuitry. Air Spray, Electrostatic Spray Please contact the technical service department for guidance. PRE-BAKING Exact drying times will depend on application techniques and drying equipment. For single sided processing, approximate convection oven times and temperatures are as follows: TEMPERATURE TIME SINGLE SIDED C ( F) 25 minutes DOUBLE SIDED 1 st Side 75 C (167 F) 20 minutes 2 nd Side 75 C (167 F) 25 minutes Side 1 drying should be sufficiently tack-free to resist fingerprinting. Care should be taken when handling panels to prevent damage to side 1 during second side coating. Allow panels to cool to room temperature prior to imaging. Exposing within 72 hours is recommended. HOLD TIME AFTER DRYING IMAGING A 5Kw or greater UV vacuum frame exposure unit without UV filter should be used and UV spectra at nm (360 nm peak) is required in order to properly expose and polymerize. Form EE.P32.FT Page 4 of 9

5 Also, the amount of energy required to fully polymerize the coverlay film will vary depending upon film colour, thickness and proprietary formulation: proper exposure is determined through the use of a 21 step Stouffer step tablet. A properly exposed OPSR 5600 will exhibit a Stouffer step reading of solid > 9 steps. For ENIG or Electrolytic Ni/Au, > 10 Stouffer Steps is recommended. The procedure for Stouffer step analysis is a follows: 1. Ensure the Developing process is running properly (i.e. temperature, concentration, spray pressure, etc.). 2. Coat a number of copper clad panels with OPSR 5600 and tack dry to completion. 3. Set developer speed to obtain 30% breakpoint. 4. Once the developer process is set, set the exposure energy to obtain a solid Stouffer step reading of The Stouffer step reading should be monitored on a regular basis as part of an SPC program of process control. DEVELOPMENT OPSR 5600 SPNM and SPNG are soluble in an aqueous developing solution. Typical conditions utilized spray units are as follows: OPTIMUM RANGE Na 2 CO 3 / K 2 CO 3 1% % Temperature 30 C (86 F) C (84-90 F) Spray Pressure 2.5 bar (36 psi) bar (29 50 psi) Dwell Time As measured seconds Rinse Water DI or City water Rinse Pressure 2.5 bar (36 psi) bar (29 50 psi) Rinse Temperature Drying Although room temperature rinse water may be used, warm water (< 32 C or < 90 F) rinsing will assist with complete image development and help ensure optimum electrical resistance and reduce ionic contamination retention properties Warm turbine air or air knife drying The developer solution should be periodically analyzed for carbonate concentration to ensure proper solution makeup is maintained. Form EE.P32.FT Page 5 of 9

6 ph of the developer solution indicates the level of carbonate. It should be measured and monitored on a regular basis. If the ph is dropped more than 1 unit of the original ph, analysis of the developer solution is needed. Adjust the carbonate concentration in accordance with the analysis result. ANALYTICAL PROCEDURE FOR DEVELOPER CONCENTRATION Reagents 0.1N Hydrochloric Acid Green Bromocresole Indicator Equipment 10 ml pipette 250 ml Erlenmeyer flask Procedure 1. Pipet a 10 ml sample of the working solution into a 250 ml Erlenmeyer flask. 2. Add ml of deionized water and 2-3 drops of Green Bromocresole indicator to the flask. 3. Titrate with 0.1 N hydrochloric acid until the colour changes from blue to yellow-green. 4. Record volume of titrant (0.1 N HCl) used. Calculations For Sodium Carbonate: ml of Titrant x N HCl x 0.53 = wt % of Na 2 CO 3 For Potassium Carbonate: ml of Titrant x N HCl x 0.69 = wt % of K 2 CO 3 REWORK Rework of misregistered images may be accomplished by stripping the coverlay film in 5-10% NaOH at 50 C (122 F), prior to final cure. FINAL CURING TEMPERATURE TIME Final Curing 150 C (300 F) minutes Optimum thermal curing is attained by baking the panels for 60 minutes at 150 C (300 F). Form EE.P32.FT Page 6 of 9

7 TESTED ITEMS RESULT REMARK Pencil Hardness > di 8H Adhesion 100/100 IPC-TM-650 TM JIS K5400 IPC-TM-650 TM JIS K5400 Abrasion IPC-SM-840-B Taber class 3 Solder Resistance IPC-SM-840-C Resistance To Molten Solder 260 C, 10 sec, 6 times Hydrolysis Stability IPC-SM-840-E Class H Flammability V0 UL94 IPC-SM-840-E Chemical Resistance Solvents Resistance Water: T amb - 60 min Sulphuric Acid 10%: 20 C - 60 min Sodium Hydroxide 10%: 20 C - 60 min IPC-SM-840-E Isopropilic Alcohol: 20 C - 60 min Trichloroethane: 20 C - 60 min MEK: 20 C, 60 min Insulation Resistance > 1 x Ohm IPC-SM-840-E class H before and after soldering process Moisture Insulation Resistance IPC-SM-840-E class H Ion Migration Resistance IPC-SM-840-E class H Dielectric Constant 3.7 JIS K6911 1MHz Dissipation Factor 0.03 JIS K6911 1MHz Voltage Breakdown 2 3 KV IPC-SM-840-E (min 500 VDC/mil) Thermal Shock IPC-SM-840-E SH HASL // Chemical Ni/Au ENIG Ni = 6.0 µm Au = 1.4 µm Ni = 5 µm Au = 0.1 µm Immersion Tin Sn = 1.0 µm Form EE.P32.FT Page 7 of 9

8 STORAGE AND SHELF LIFE OPSR 5600 products may be stored at ambient temperatures. Avoid elevated temperature (> 37 C or >100 F) and direct sunlight. OPSR 5600 products exhibit a minimum of 6 months shelf life if the above conditions are met. HANDLING PRECAUTIONS BEFORE HANDLING ANY CHEMICAL PRODUCTS, IT IS IMPORTANT TO READ THE APPROPRIATE MATERIAL SAFETY DATA SHEET. Form EE.P32.FT Page 8 of 9

9 In case of order please indicate this code: CODE PACK SIZE NAME COLOUR FINISHING HT Kg OPSR 5600 SPNM Black Matt HT Kg OPSR 5600 SPNG Black Glossy HT 9001 Tank 25 l OPSR THINNER The information stated in this Data Sheet regarding the use of materials is based upon experience under laboratory controls. Elga Europe makes no guaranty or warranty, express or implied, to such use, handling or possession of such materials, or of the application of any process described in our bulletins of the results sought to be obtained, whether in accordance with the directions or claimed so to be. Any information or statements contained herein are expressly made subject to the foregoing provisions and the terms and conditions embodied in our invoice covering such materials with are to be deemed part herein. The publication hereof describing any process is not to be deemed not taken as license to operate under, nor recommendation to infringe, any patent. The seller binds itself only to deliver goods in accordance whit the general description upon which they are sold whether or not any special particular description shall have been given or implied by law. Any such special or particular description shall be taken only as the expression of seller s opinion in that behalf. The seller does not give any warranty as to the quality (save that the goods are of merchantable quality), state condition fitness of the goods or use to which the goods may be put. Claims on account of weight, loss of or damage to the goods in transit ( so far as seller is liable) shall be made in writing to the seller within the period of 30 days of receipt thereof. No claim shall be entertained after the expiration of the appropriate period mentioned above and the seller s liability by reason of any such claim shall not in any event the purchase price of the goods in respect of which a claim is made. Goods shall not be returned to the seller without the seller s express written permission. Form EE.P32.FT Page 9 of 9