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Impinj Announces Small UHF RFID Chips With Greater Sensitivity
The company's partners and customers are currently testing its M730 and M750 ICs; Smartrac has announced inlays and tags based on the new products, while Checkpoint Systems will release five new inlays as well.
Dec 05, 2019—
Impinj has released the first two products in its Impinj M700 RAIN UHF RFID series of integrated circuits that it says are smaller by half than other UHF RFID chips on the market. The company reports that the new chips, known as the M730 and M750, along with future M700 series products, will be more sensitive and have a greater bandwidth in order to operate in the European, North American and Asian markets. The ICs also feature a functionality known as "protected mode" so that they can be rendered invisible for security and privacy purposes, and then be turned back on by authorized users.
The company developed the ICs based on improved manufacturing processes, as well as through engineering of the chips themselves, says Chris Diorio, Impinj's CEO. "The M700 series is a family of products using some fundamental technology advancements," he states. One result, Diorio adds, is that twice as many chips can be built onto a single wafer than with other UHF RFID chips, allowing twice as many inlays Additionally, he says, sensitivity is about 10 percent higher than for similar chips.
Since announcing technology advancements this past spring that serve as the foundation for its M700 family of products, Impinj has been working with partners and some end users to begin developing inlays and applications using the new ICs. The new family of products, Diorio says, follows Moore's Law with regard to the shrinking of integrated circuits that provide greater speed and capability, and are poised to enable RFID technology use in greater volume and in new applications, such as those that require very small form factors or greater privacy protection.
In fact, Diorio says, depending on the design of the inlay in which the IC is incorporated, the new chips will offer approximately 10 percent greater sensitivity, both when receiving interrogation signals from a reader and when responding. They will also allow readers to operate at faster speeds, he claims, while losing only minimal sensitivity. Thus, as a pallet loaded with tagged items moves through a reader-equipped warehouse door, for instance, more of those tags will be read than previous tags would, even if the pallet is moving faster through that portal.
Because the ICs are smaller, Diorio explains, they may be embedded directly into products, such as in the form of RFID-enabled washable labels sewn into garments, or as tags built directly into a garment. The additional sensitivity ensures that the tags can still be readable even when incorporated directly into a product.
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