© 2012 PennEngineering microPEM ™ Fastener Technology Solving Assembly Challenges in Reduced Footprint Applications

© 2012 P ENN E NGINEERING Technical Services On-Site training. Comprehensive website includes complete fastener 3D modeling capabilities. Trained field technical representatives Global testing laboratories. Cost Savings Investigations (C.S.I.). Prototype development. Installation solutions. 2

© 2012 P ENN E NGINEERING FASTENER INSTALLATION METHODS Self-Clinching Broaching Surface mount Weld Flaring Swaging Inserts for plastics Blind threaded rivet 3

© 2012 microPEM Fasteners Overview A new family of solutions from PennEngineering

© 2012 Why so small? We actively conduct Product Teardowns and CSI reviews for our customers. We have found in our analysis and investigations that they often need smaller and smaller clinch fasteners for thinner and thinner panels, to replace the adhesives, rivets or welds they have been using. This is driving us to provide more assembly options for when they are designing their next product. 5

© 2012 What is the “micro” in m icroPEM? Threads as small as M1. Pin diameters as small as 1mm. Standoff lengths as short as.040”/1mm. Attach sheets as thin as.003”/0.08mm. Clinching into sheets as thin as.012”/0.3mm. Smaller products are in development. 6

© 2012 MPP - Micro Pin Satisfies micro positioning and alignment requirements with pin diameters as small as 1.0mm. Flush installation into materials as thin as.020” / 0.5mm and as hard as HRB 92 / HB 195, such as stainless steel. Made from A286 - excellent corrosion resistance. Chamfered end eases mating hole alignment. RoHS compliant. 7

© 2012 Application Example 8

© 2012 Phone: Pin used as a spring anchor. Application Example 9

© 2012 Self-clinching Micro Standoffs MSO4 ™ 10

© 2012 MSO4 Thread sizes: M1.0, M1.2, M1.4, M1.6, #0-80, #2-56 Made from 400 Series Stainless Steel Installs into materials with a maximum hardness of HRb 88 and as thin as 0.4mm /.016” (0.3mm /.012” possible with modification – MTSO4) Lengths as short as 1mm or.04” Round, knurled head for close centerline to edge placement. RoHS compliant 11

© 2012 Phone: Standoffs clinched into 0.4mm/.016” stainless. Application Example 12

© 2012 Cell phone: M1.4 Standoff clinched into 0.43mm/.017” stainless. Application Example 13

© 2012 Cell phone: M1.4 Standoff welded onto 0.4mm/.016” stainless. Application Example 14

© 2012 Laptop: M2 standoffs clinched into 0.5mm/.020” stainless heatsink mounting plate. Application Example 15

© 2012 Flaring Standoff-MSOFA Camera: M1.6 standoffs flared into 0.2mm/.008” stainless heatsink mounting plate. 16

© 2012 Micro SMTSO Thread sizes down to M1. Material choices: Brass, Steel Bright or Matte Tin plated Sold Loose or Tape-And- Reel Hex body for additional strength 17

© 2012 Laptop: M2 SMT nuts 1mm tall on PCB 2.5mm ID spacer Application Example 18

© 2012 SI ® Brand Micro Inserts for Plastics Thread Sizes from M1.0 Material choices: Brass, Stainless Steel Style Choices: Ultrasonic, Heat-Stake, Molded-In, Press-In 19

© 2012 Do you use micro screws? 1.Yes – only to hold an assembly together. 2.Yes – to allow for disassembly and reassembly. We can offer two proprietary engineered solutions. 20

© 2012 Yes – to hold an assembly together. Solution = Micro TackPin Patent Pending

© 2012 What are your costs to design in a screw? (some may be costs of your fabricator, but that is included in their bid to you) ____ Cost of screw +____ Cost of patch to prevent loosening +____ Cost of threaded insert or tapped hole +____ Cost of driver bits +____ Cost of rework due to cross-threading +____ Cost of rework due to driver bit “cam-out” =____ Is this less than $10/k - $18/k ? If not, than the smaller and stronger TackPin is the answer. 22

© 2012 microPEM™ TackPin™ Intended for attaching two surfaces together, much the way a screw would. The part clinches into the bottom member while retaining the top member with a head. Tapered tip assists in assembly into the very small mounting hole. Interference band sizes hole during assembly to alleviate tolerance concerns. 23

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© 2012 What are the benefits to use a PEM ® TackPin instead of a screw ? –The PEM ® TackPin is stronger in pullout than the thread strength of a screw of the same length. –No risk of cross-threading. –Eliminates risk of ‘cam-out’ bit damage. –Less weight than a screw. –Smaller than a screw, so designs can be thinner/smaller. –No need for the cost of a nylon locking patch. –Full metal contact for grounding/conductivity. 25

© 2012 What are the process cost savings? –Simplified assembly - press-in versus turned screw. –Throughput is faster. –No need to control, monitor and calibrate torque settings to drive screws. –No scrap costs due to cross-threading, over installation, or screw breakage during assembly. –If adhesives are used, a PEM ® TackPin can be used without any environmental or recycling concerns that adhesives can cause. 26

© Over 250 million patched M1.2 screw replacements in 2011 for this project. Over 150 million more for two other projects. Laptop keyboard

© 2012 PCB to copper busbar 28

© N min Pullout 360° metal contact

© 2012 Do you use micro screws? 1.Yes – only to hold an assembly together. 2.Yes – to allow for disassembly and reassembly. We can offer two proprietary engineered solutions. 30

© 2012 Yes – to allow for disassembly and reassembly. Solution = licensed MTS ® Screw

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microPEM Fasteners A new family of solutions from PennEngineering