CM1220 ESD Protection Arrays
for Board Space Critical Applications		  

Product Overview
California Micro Devices introduces the CM1220 family of low capacitance Zener diode arrays for electrostatic discharge protection. The CM1220 is available in 4-channel and 8-channel configurations, and is ideal for data line filtering on wireless handsets and LCD modules. The CM1220 provides up to ±15kV of ESD protection on each channel, greatly exceeding the IEC6100-4-2 Level 4 contact discharge standard (±8kV). By utilizing CMD's Centurion™ Zener diode process technology, the CM1220 offers a very low input capacitance of 14pF (typical), enabling a high level of ESD protection while maintaining critical signal integrity.

The CM1220 is manufactured as a chip scale packaged (CSP) device and is manufactured with OptiGuard™ coating for greater durability. The CM1220 is also available with preformed eutectic (63Sn/37Pb composition) or lead-free (96.8Sn2.6Ag0.6Cu composition) 0.30mm solder spheres for attachment to the PCB substrate.

Product Features
Robust ESD Performance
Mobile electronic devices are constantly handled, often resulting in potentially damaging ESD "strikes". California Micro Devices' CM1220 application specific ESD solution provides ±15kV protection from contact discharges, a level that greatly exceeds the IEC61000-4-2 Level 4 standard. Their low capacitance makes them ideal for protecting high speed I/O ports, such as LCD and camera data interfaces, with a high level of ESD protection while preserving signal integrity.

CSP Form Factor and Cost Savings
California Micro Devices' new protection array also features a high level of integration in a low profile form factor (CSP), for a space savings of up to 50% versus discrete implementations. California Micro Devices' single chip Application Specific Integrated Passive™ (ASIP™) devices offer customers the ability to significantly reduce their total cost of ownership while facilitating design and manufacturability, and improving time-to-market.

Features of the CM1220 include:

  • 4 and 8 channels of ESD protection
  • ±15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)
  • ±30kV ESD protection on each channel (HBM)
  • OptiGuard™ coated for improved reliability
  • Space-saving, low profile CSP form factor ideal for mobile applications
  • Optional lead free finishing

Product Applications
The CM1220 is suitable for a number of applications where space as well as performance are considerations. These include:

  • LCD and camera datalines in mobile handsets
  • I/O port protection for mobile handsets, notebook computers, PDAs, etc.
  • Keypads and buttons
  • Wireless handsets
  • Handheld PCs/PDAs
  • LCD and camera modules

Sampling, Pricing and Availability
The Centurion™ CM1220 ESD protection arrays are currently sampling, and are priced at $0.33 and $0.49 each in 1,000 units for the CM1220-04 and CM1220-08 devices respectively. Volume production is scheduled for April 2005. Lead free versions are available as part of California Micro Devices’ efforts to provide environmentally friendly products to its customers. Proprietary OptiGuard™ coating improves reliability during the manufacturing process.