History of the sim card (Sahil huke 22BDI011)

                          

                 History of the Sim card 

Introduction 

The first SIM card was developed in 1991 by Munich smart-card maker Giesecke & Devrient. Since then, SIM Card design and its usefulness have been evolving overtime which makes it compatible with the newer advancement of technology. Its format and design overtime can classified into

Esims WLCSP (2015)

       

         

                                                                                Infineon says it has shipped volume quantities of the first industrial-grade water level chip scale

package (WLCSP) embedded SIM.

Until now, the company said there were only consumer-grade eSIM products being shipped in a WLCSP-package. Infineon says it has managed to get its SLM 97 security controller qualified to industrial qualification requirements as defined per Jedec, including extended temperature range (-40 to 105°C) and reduced failure rates.

Manufacturers of industrial machines and equipment ranging from vending machines to remote sensors and asset trackers are using machine-to-machine communication in the internet of things (IoT), and often rely on mobile networks for data collection and uninterrupted data transmission. A chip level miniature eSIM can be helpful in the adoption of cellular connectivity into industrial environments — the small eSIM footprint enables more design flexibility and simplified production processes for device manufacturers. Customers can also change their mobile service provider at any time, for example, if the quality of the network deteriorates or in the event of a better contract from the mobile operators.

Esim MFF2 (2013)

                Embedded SIMs (eSIMs) or embedded Universal Integrated Circuit Cards (eUICCs) are physical SIMs that are soldered into the device and enable storage and remote management of multiple network operator profiles (remote SIM provisioning). The form factor of eSIM is known as MFF2.

The integrated SIMs (iSIMs) moves the SIM from a separate chip into a secure enclave alongside the application processor and cellular radio on a purpose-built system on a chip (SoC).

We made a short tutorial explaining UICC & SIM and then looking at eSIM, iSIM and how remote SIM provisioning works. The video and slides are embedded below. The slides contain a lot of useful links for further reading.

Nano-SIM 4FF (2012)

          

           

         I have click this photo 

The nano-SIM (or 4FF) card was introduced on 11 October 2012, when mobile service providers in various countries started to supply it for phones that supported the format. The nano-SIM measures 12.3 mm × 8.8 mm × 0.67 mm (0.484 in × 0.346 in × 0.026 in) and reduces the previous format to the contact area while maintaining the existing contact arrangements. A small rim of isolating material is left around the contact area to avoid short circuits with the socket. The nano-SIM is 0.67 mm (0.026 in) thick, compared to the 0.76 mm (0.030 in) of its predecessor. 4FF can be put into adapters for use with devices designed for 2FF or 3FF SIMs, and is made thinner for that purpose, and telephone companies give due warning about this.

The first device to use a nano-SIM card was iPhone 5 released in September 2012, followed by other handsets. And it the standard mostly used in all Smartphones, and other SIM-enable device.

Micro-SIM 3FF (2003)

       

The micro-SIM (or 3FF) card has the same thickness and contact arrangements, but reduced length and width as shown in the table above.

The micro-SIM was designed for backward compatibility. The major issue for backward compatibility was the contact area of the chip. Retaining the same contact area makes the micro-SIM compatible with the prior, larger SIM readers through the use of plastic cutout surrounds. The SIM was also designed to run at the same speed (5 MHz) as the prior version.

Mini-SIM 2FF (1996)

The mini-SIM (or 2FF) card has the same contact arrangement as the full-size SIM card and is normally supplied within a full-size card carrier, attached by a number of linking pieces. This arrangement (defined in ISO/IEC 7810 as ID-1/000) lets such a card be used in a device that requires a full-size card – or in a device that requires a mini-SIM card, after breaking the linking pieces. As the full-size SIM is no longer used, some suppliers refer to the mini-SIM as a "standard SIM" or "regular SIM".

Full-size SIM 1FF (1991)

The full-size SIM (or 1FF, 1st form factor) was the first form factor to appear. It was the size of a credit card (85.60 mm × 53.98 mm × 0.76 mm). Later smaller SIMs are often supplied embedded in a full-size card from which they can be removed.

Sahil huke

22BDI011

Citations

https://www.eetasia.com/18121903-infineon-launches-industrial-wlcsp-esmi/

https://blog.3g4g.co.uk/2020/06/embedded-sim-esim-and-integrated-sim.html

https://www.boomplay.com/buzz/3008249