Low insertion force

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LIF connection of a 1.8 "hard disk
Low Insertion Force Socket 486

Low Insertion Force ( LIF ) is the name of a socket type for electronic components.

The LIF sockets were originally developed as an inexpensive alternative to zero force sockets for simple programming and testing devices. Compared to normal IC sockets, they have a lower spring force in the contacts, which means that a component can be inserted and removed with less effort. At the same time, the complex mechanics for opening and closing the contact springs are saved.

However, it is disadvantageous that the lower contact force also results in poorer contact and oxide formation between contact and connecting leg is possible.

With the advent of frequent processor changes in PCs, a need for a suitable socket system arose. For this purpose, Intel introduced the LIF socket system in which the processor is only plugged onto the socket without fixing it with a lever. This type of socket without lever was used on some 386 and early 486 types. The system has now been replaced by zero insertion force systems .

LIF sockets are also used again for hard drives in the 1.8 "format. One example is the Samsung SpintPoint N1 series. Samsung describes the connection type as" Ultra Mobile PATA ".

As a solid-state drive (SSD) there are models from (as of 2013-02):

  • Mach Xtreme Technology "MXSSD1MNANOZ-60G", "MXSSD1MNANOZ-120G", "MXSSD1MNANOZ-240G"
  • Super talent "FZM32GF18H"
  • Origin Storage "NB-64SSD-1.8-PATA"

literature

  • Glenn R. Blackwell (Ed.): The Electronic Packaging Handbook. CRC Press LLC, Boca Raton 2000, ISBN 0-8493-8591-1 .
  • Fraidoon F. Mazda: Discrete Electronic Components. Cambridge University Press, Cambridge 1981, ISBN 0-521-23470-0 .
  • Eduard Vinaricky (Ed.): Electrical contacts, materials and applications. Springer Verlag, Berlin / Heidelberg 2002, ISBN 978-3-642-62698-2 .
  • Daryl Ann Doane, Paul Franzon: Multichip Module Technologies and Alternatives. Springer Science + Business Media LLC, New York 1993, ISBN 978-0-442-01236-6 .

Individual evidence

  1. ^ What is LIF Computer Hope. Retrieved July 6, 2017.
  2. ↑ Ultra mobile PATA Spinpoint N1 ( English , PDF) Samsung. Retrieved August 26, 2019.

Web links