BGA sockets feature MPI material system
11 August 2004
Interconnection
Products & Solutions
Tyco Electronics' MPI (metallised particle interconnect) polymer system provides a highly conductive interconnect. This proprietary material consists of a high temperature polymer compound that has been embedded with metalised particles.
The material is formed into micro-columns just 0,635 mm in diameter and less than 1 mm high. The columns are held in a grid pattern by a thin polyimide substrate. When mechanically compressed, the columns' electrical characteristics are optimised.
The unique design of the BGA socket uses an anti-overstress feature that protects the contact and also provides a well for the ball to rest in. This well acts as an alignment feature that centres the BGA ball to the MPI polymer material. Corner frames provide for gross alignment of the package to the socket.
Figure 1. Contact to solder ball interface
The MPI socket provides a compression mount solderless interconnect. A hardware system is required to generate the necessary forces. Tyco Electronics offers a complete hardware solution for each socket size. Each hardware kit contains enough hardware for one socket - a spring plate, a top plate, and a bolster plate with insulator.
Figure 2. The MPI socket provides a compression mount solderless interconnect. A hardware solution generates the necessary forces. Each kit contains a spring plate, a top plate, and a bolster plate with insulator
Key electrical specifications include 4 A per column maximum and a contact resistance of 50 mΩ maximum. Insulation resistance is 1000 MΩ at 100 V d.c., and the capacitance rating is 0,1 pF. Standard operating temperature range is 0 to 90°C, and the compression force is 70 g/contact (nominal). Available in standard pitches of 1,27, 1 and 0,8 mm, the sockets accept standard Jedec solder ball sizes.
Further reading:
Powering business resilience and field operations
Infrastructure Products & Solutions
[Sponsored] The Anker 757 Portable Power Station emerges as a strategic asset for businesses looking to overcome power instability and the demand for operational efficiency in remote and field-based environments.
Read more...
Digital link 40x faster than broadband Internet
Hiconnex
Interconnection
Axon’s AxoMach high-speed links were recently qualified by the European Space Agency to the ESCC 3409/001 standard, and are designed to transmit data at speeds of up to 40 Gbps for space applications.
Read more...
Modular CAT7 inter-car-connection
Hiconnex
Interconnection
These modular connectors are particularly suitable for harsh environments, and have a high resistance to industrial vibration and an IP67 protection rating.
Read more...
Multi-channel cable assembly
RFiber Solutions
Interconnection
Withwave’s Multi-Channel SMPM Cable Assemblies (WMCM Series) provide a wide range of multiple coax connectors and flexible cable assemblies, with a choice of 26,5, 40 and 50 GHz configurations.
Read more...
Compact power relays
Future Electronics
Interconnection
The new HE-R Series power relays by Panasonic Industry are PCB-mounted relays for easy board assembly, with both two- and four-pole contact arrangement options.
Read more...
High-density multicoax cable assembly
RFiber Solutions
Interconnection
Withwave’s high speed and high-density Multicoax Cable Assemblies (WMX Series) provide a wide range of multiple coax connectors and flexible cable assemblies with a choice of
20, 40, 50, 67 or 110 GHz configurations.
Read more...
Centralised distribution for M8 and M12 connectors
Communica
Interconnection
Amphenol LTW’s distribution boxes facilitate efficient cable management, easy installation with pre-wired configuration, and provide a centralised distribution point for M8 and M12 connectors.
Read more...
What is an RF connector?
Spectrum Concepts
Editor's Choice Interconnection
If you look across the broader electromagnetic spectrum, the selection of the 3 kHz to 300 GHz frequency range for RF signals is a result of a balance between propagation characteristics, data transmission requirements, regulatory allocations, and the compatibility of electronic components and devices.
Read more...
Multi-head battery contacting solutions
Electronic Industry Supplies
Interconnection
INGUN has developed contacting solutions which boast low contact resistances, maximum reduced power losses, and stable, durable electrical connections in either single- or multi-head contacting configurations.
Read more...
Eight MP dome for harsh environments
Axis Communications SA
Surveillance Products & Solutions
Axis Communications announced a marine-grade stainless steel camera that offers performance in harsh environments. Enclosed in an electropolished stainless steel casing, it can withstand the corrosive effects of seawater and cleaning chemicals.
Read more...