IERC Thermal Management Products

IERC Thermal Management Products
Military/Aerospace Applications
Agenda:
Topic
8 IERC History
8 Thermal Management Product Families
8 ZIF PCB Retainers
8 ZIF Features
8 ZIF Performance Graphs
8 ZIF and Wedge Comparison
8 Current Platforms
8 Engineering Capabilities
8 Manufacturing & Testing Capabilities
8 ZIF Summary
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Page
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5-6
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9-12
13-15
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IERC History:
8 1954:
Company founded in Burbank, California to build
and sell tube shields and military components
8 1960☂s: Heat Sink product growth
8 1980☂s: Developed ZIF (Zero Insertion Force) PCB Retainers
8 1990☂s: Supported PC industry expansion
8 1997:
Acquired by CTS Corporation
8 2005:
Launched Forged Heat Sink product line
8 2006:
Introduced iZIF晳 Heat Frame
8 2007:
Designing many new products including a
High-Clamping Force & Tool-less ZIF retainer
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Thermal Management Product Families:
8 Stamped
4 TX Thermal Links
4 Transistor Heat Sinks
8 Extruded
4 Aluminum Extrusions
4 Peel & Stick
8 Forged
4 High aspect ratio
4 Low thermal resistance
8 Military/Aerospace
4 ZIF Retainers
4 Enclosures
4 mZIF晳 (Machined-ZIF)
4 Heat Frames
4 iZIF晳 (Integrated-ZIF)
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ZIF PCB Retainer:
8 3-piece Thermally Conductive Zero-Insertion Force (ZIF)
Clamp to Secure the PCB or Heat Frame/Cold Plate to
the Chassis Cold Wall
4 Housing (aluminum)
4 Spring (beryllium copper)
4 Rod (stainless steel)
8 2 Key Functions:
4 Thermal Conductive Path
4 Quick & Easy Structural Fastening
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ZIF PCB Retainer:
8 PCB or Heat Frame Mounted:
8 Chassis Mounted:
4 ZIF III
4 iZIFTM (Integrated-ZIF)
4 ZIF
4 mZIFTM (Machined-ZIF)
PCB or Heat Frame/Cold Plate
Heat Frame/Cold Plate
iZIFTM
ZIF III
PCB or Heat Frame Mounted
Chassis Mounted
mZIFTM
ZIF
PCB or Heat Frame/Cold Plate
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ZIF PCB Retainer Features:
8 Quick Connect & Disconnect
4 ¼-Turn: Uses 90º Cam-Action to Engage (Lock) or to
Disengage (Unlock) the clamp
4 Positional Stops at 0º and 90º Rotation
4 1 Second Engagement/Disengagement
4 Excellent for ☜Hot-Swappable☝ and/or ☜On-the-Fly☝ Applications
8 ZIF/ZEF (Zero Insertion/Extraction Force)
8 Uniform Clamping Pressure
4 No Accidental Crushing of the PCB from Over-Clamping
8 Uniform Thermal Distribution
4 No Thermal-Bottleneck
8 Best Thermal Performance per Length
4 20.3ºC-mm/W (iZIFTM)
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ZIF PCB Retainer Features:
8 Will Not Back-Drive
4 Inherent to the Patented Cam-Locking Design
8 Does Not require a Torque Wrench or Special Tool
8 MIL-STD-810 Vibration & Shock Test Proven Design
4 Salt Fog:
4 Shock:
4 Vibration:
4 Low Temp:
4 High Temp:
Method 509, Procedure 1
Method 516, Procedure 1
Method 514, Procedure 1, Part 1, Category B.1, Curve L
Method 502, Procedure 1, Steps 1-3 & 6, -55°C
Method 501, Procedure 1, Steps 1-7, 71C; after 48 Hrs;
Exposure to 150°C
4 Gunfire Vibration, Aircraft: Method 519.3, Figure 519.3-1, Modified
8 High Reliability
4 Rated Life to 400 Cycles, but Successfully Tested Over 1,000 Cycles
4 Only 3 Detachable Components
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ZIF and Wedge Comparison:
ZIF III
Cold Wall
PCB
ZIF III
Cold Wall
Clamping
Pressure
Thermal
Path
Wedge
Cold Wall
PCB
Wedge
Cold Wall
End Gaps = No Heat Transfer
Air Gaps = No Heat Transfer
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ZIF and Wedge Comparison Summary:
Properties:
ZIF:
Wedge:
Thermal Performance:
♣ iZIFTM:
20.3 ºC-mm/W
♣ ZIF III:
22.9 ºC-in/W
♣ Uniform across Full-length
♣ 3-pc Wedge: 76.2 ºC-mm/W
♣ 5-pc Wedge: 43.2 ºC-mm/W
♣ *Effective value at Wedge Section
Clamping Pressure:
♣ Uniform across Full-length
♣ Constant Pressure as Length
Increase
♣ Allow Vibration Dampening,
Reducing Fatigue Stress on the
PCB
♣ Only at the Wedge Section
♣ Uneven Pressure due to Unequal
Sliding Friction
♣ Potential For Under-Clamping
Operational
Repeatability:
♣ Always ¼-Turn Lock/Unlock
♣ No Special Tool Required
Net-Centric
Applications:
♣ 1 sec to Engage/Disengage
♣ Will Not Back-Drive
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♣ Requires Multiple Turns
♣ Requires Torque Wrench
♣ Potential Over-Torque or UnderTorque w/o Torque Wrench
♣ ~10-20 sec to Engage/Disengage
♣ Requires Anti-Back Drive Feature
Current Platforms:
8 Land:
4 M1A1 Abrams Tank
4 PAC-3 Missile System
8 Air:
4 C130J
4 C-17 Cargo Plane
4 Apache Longbow Helicopter
4 Predator UAV
4 Airbus A380
4 Cockpit Displays
8 Sea:
4 Vertical Launch
System
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