公开(公告)号：US20050063235A1

公开(公告)日：2005-03-24

申请号：US10839985

申请日：2004-05-05

申请人： Alberto Pesavento ,  Frederic Bernard ,  John Hyde

发明人： Alberto Pesavento ,  Frederic Bernard ,  John Hyde

IPC分类号： G11C16/04 ,  G11C20060101 ,  G11C5/00 ,  G11C7/06 ,  G11C11/34 ,  G11C16/02 ,  G11C16/06 ,  G11C16/28 ,  H01L21/8247 ,  H01L27/115 ,  H01L29/788 ,  H01L29/792

CPC分类号： G11C16/0441 ,  G11C16/28 ,  G11C2216/10 ,  H01L27/115 ,  H01L29/7883

摘要： A nonvolatile memory cell is constructed using a floating-gate pFET readout transistor having its source tied to a power source (Vdd) and its drain providing a current which can be sensed to determine the state of the cell. The gate of the pFET readout transistor provides for charge storage which can be used to represent information such as binary bits. A control capacitor structure having its first terminal coupled to a first voltage source and its second terminal coupled to the floating gate and a tunneling capacitor structure having its first terminal coupled to a second voltage source and its second terminal coupled to the floating gate are utilized in each embodiment. The control capacitor structure is fabricated so that it has much more capacitance than does the tunneling capacitor structure (and assorted stray capacitance between the floating gate and various other nodes of the cell). Manipulation of the voltages applied to the first voltage source and second voltage source (and Vdd) controls an electric field across the capacitor structure and pFET dielectrics and thus Fowler-Nordheim tunneling of electrons onto and off of the floating gate, thus controlling the charge on the floating gate and the information value stored thereon.

摘要翻译： 使用其源极连接到电源（Vdd）的浮栅pFET读出晶体管构造非易失性存储单元，其漏极提供可被感测以确定单元的状态的电流。 pFET读出晶体管的栅极提供电荷存储，可用于表示诸如二进制位之类的信息。 一种控制电容器结构，其第一端耦合到第一电压源，其第二端耦合到浮置栅极，并且隧道电容器结构具有耦合到第二电压源的第一端和其耦合到浮置栅极的第二端。 各实施例。 制造控制电容器结构使得其具有比隧道电容器结构（以及浮动栅极和电池的各种其他节点之间的杂散电容）多得多的电容。 对施加到第一电压源和第二电压源（和Vdd）的电压的操纵控制电容器结构和pFET电介质两端的电场，从而使Fowler-Nordheim将电子隧穿到浮栅上和从浮栅上，从而控制电荷 浮动门和存储在其上的信息值。

公开(公告)号：US20050030826A1

公开(公告)日：2005-02-10

申请号：US10936282

申请日：2004-09-07

申请人： Christopher Diorio ,  Todd Humes

发明人： Christopher Diorio ,  Todd Humes

IPC分类号： G11C16/34 ,  G11C11/34

CPC分类号： G11C16/3468 ,  G11C16/3404 ,  G11C16/3472 ,  G11C16/3477

摘要： Methods and apparatuses for programming a single-poly pFET-based nonvolatile memory cell bias the cell so that band-to-band tunneling (BTBT) is induced and electrons generated by the BTBT are injected onto a floating gate of the cell. Following a predetermined event, the single-poly pFET is biased to induce impact-ionized hot-electron injection (IHEI). The predetermined event may be, for example, the expiration of a predetermined time period or a determination that a channel has been formed by the BTBT injection process that is sufficiently conducting to support IHEI. Employing BTBT permits a previously overerased or stuck bit to be “unstuck” or “removed” and thus be made usable (i.e., able to be programmed) again.

摘要翻译： 用于编程基于单多晶硅pFET的非易失性存储单元的方法和装置偏置该单元，从而导致带间隧穿（BTBT），并且由BTBT产生的电子注入到该单元的浮动栅极上。 在预定事件之后，单多晶硅pFET被偏置以引起冲击电离热电子注入（IHEI）。 预定事件可以是例如预定时间段的到期或通过充分进行支持IHEI的BTBT注入处理形成的信道的确定。 使用BTBT允许先前已过度或卡住的位被“解锁”或“移除”，并因此被再次使用（即能够被编程）。

公开(公告)号：US20040124892A1

公开(公告)日：2004-07-01

申请号：US10681577

申请日：2003-10-07

申请人： Impinj, Inc., a Delaware Corporation

发明人： Christopher J. Diorio ,  Todd E. Humes ,  Michael Thomas

IPC分类号： H03B001/00

CPC分类号： G06F1/10 ,  G11C27/005 ,  G11C27/024 ,  H03K5/135 ,  H03K5/1502 ,  H03K5/2481 ,  H03K5/249 ,  H03K2005/00026 ,  H03K2005/00058 ,  H03K2005/00084 ,  H03M1/0602 ,  H03M1/1215 ,  H03M1/164 ,  H03M1/442

摘要： Methods of and apparatuses for matching the signal delay, clock timing, frequency response, gain, offset, and/or transfer function of signal pathways in electrical circuits such as, for example, time-interleaved and pipelined circuits using analog-valued floating-gate MOSFETs are disclosed. The methods and apparatuses disclosed are applicable to a variety of circuits, including but not limited to, sample-and-hold or track-and-hold circuits, quadrature mixers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), analog or digital filters, and amplifiers.

摘要翻译： 用于使电路中的信号路径的信号延迟，时钟定时，频率响应，增益，偏移和/或传递函数匹配的方法和设备，例如使用模拟值浮动栅极的时间交织和流水线电路 公开了MOSFET。 所公开的方法和装置适用于各种电路，包括但不限于采样保持或跟踪保持电路，正交混频器，模数转换器（ADC），数模转换器 转换器（DAC），模拟或数字滤波器和放大器。

公开(公告)号：US20040052113A1

公开(公告)日：2004-03-18

申请号：US10245183

申请日：2002-09-16

申请人： Impinj, Inc., a Delaware Corporation

发明人： Christopher J. Diorio ,  Chad Lindhorst ,  Shail Srinivas ,  Alberto Pesavento ,  Troy Gilliland

IPC分类号： G11C016/04 ,  G11C011/34

CPC分类号： G11C16/3477 ,  G11C16/3404 ,  G11C16/3468 ,  G11C16/3472

摘要： Methods and apparatuses prevent overtunneling in pFET-based nonvolatile floating gate memory (NVM) cells. During a tunneling process, in which charge carriers are removed from a floating gate of a pFET-based NVM cell, a channel current of a memory cell transistor is monitored and compared to a predetermined minimum channel current required to maintain a conducting channel in an injection transistor of the memory cell. When the monitored channel current drops below the predetermined minimum channel current, charge carriers are injected onto the floating gate by impact-ionized hot-electron injection (IHEI) so that overtunneling is avoided.

摘要翻译： 方法和装置可以防止基于pFET的非易失性浮动栅极存储器（NVM）单元中的超导。 在其中从基于pFET的NVM单元的浮置栅极去除电荷载流子的隧穿过程中，监测存储单元晶体管的沟道电流，并将其与在注入中维持导通通道所需的预定最小沟道电流进行比较 晶体管的存储单元。 当监测的通道电流下降到预定的最小通道电流以下时，电荷载流子通过冲击电离热电子注入（IHEI）注入到浮动栅极上，从而避免了超导。

公开(公告)号：US20040004861A1

公开(公告)日：2004-01-08

申请号：US10190337

申请日：2002-07-05

申请人： Impinj, Inc. A Delware Corporation

发明人： Shail Srinivas ,  Chad Lindhorst ,  Yanjun Ma ,  Terry Haas ,  Kambiz Rahimi ,  Christopher J. Diorio

IPC分类号： G11C011/34

CPC分类号： G11C16/3486 ,  G11C16/0441 ,  G11C16/28 ,  G11C16/3468 ,  G11C2216/10

摘要： An electrically erasable programmable read only memory (EEPROM) cell that uses differential pFET floating-gate transistors as its core.

摘要翻译： 采用差分pFET浮栅晶体管为核心的电可擦可编程只读存储器（EEPROM）单元。

公开(公告)号：US12093767B1

公开(公告)日：2024-09-17

申请号：US17970729

申请日：2022-10-21

申请人： Impinj, Inc.

发明人： Christopher J Diorio ,  Joel Peshkin

IPC分类号： G06K19/07

CPC分类号： G06K19/0723

摘要： RFID tags capable of transitioning between a private state and one or more public states are provided. In the private state, tags may participate in an inventory round without restriction. In a public state, tags may be prevented from participating in an inventory round, allowed to participate without providing actual identifying information, or allowed to participate providing an alternate identifier. Whether and how the tag responds in a public state may depend on certain conditions including if one or more of the tag's flags are asserted or deasserted. A reader may select a public tag for inventorying by verifying itself, and the tag then asserting or deasserting one or more of its flags accordingly. The asserted or deasserted flag(s) may be used to determine whether and how a tag in a public state participates in an inventory round.

公开(公告)号：US11681889B1

公开(公告)日：2023-06-20

申请号：US17580953

申请日：2022-01-21

申请人： Impinj, Inc.

发明人： Christopher J. Diorio ,  Matthew Robshaw ,  Tan Mau Wu

IPC分类号： G06K19/073 ,  G06K19/077 ,  G06K7/10

CPC分类号： G06K19/07309 ,  G06K7/10257 ,  G06K19/07758

摘要： RFID technology may be used to provide digital identities for physical items. An RFID IC attached to or integrated into a physical item contains an identifier for the physical item. Digital identity information associated with the item, such as ownership information, history, properties, and the like, may be located on one or more networks. An entity, after authenticating itself and/or the item, may use the identifier to locate, retrieve, and/or update the item's digital identity information on the network.

公开(公告)号：US11341343B1

公开(公告)日：2022-05-24

申请号：US17019385

申请日：2020-09-14

申请人： Impinj, Inc.

发明人： Christopher Diorio

IPC分类号： G06K7/10 ,  G06F11/10 ,  G06F21/35 ,  G06K19/07 ,  G06K19/073

摘要： A Radio Frequency Identification (RFID) tag IC stores an identifier and a check code. The IC determines whether the stored identifier is corrupted by comparing it to the check code. If the stored identifier does not correspond to the check code then the IC may terminate operation or indicate an error. The IC may also reconstruct the correct identifier from the check code.

公开(公告)号：US11120320B1

公开(公告)日：2021-09-14

申请号：US16773393

申请日：2020-01-27

申请人： Impinj, Inc.

发明人： Matthew Robshaw ,  Tan Mau Wu ,  Christopher J. Diorio

IPC分类号： G06K19/07 ,  H04L9/32 ,  H04L9/08 ,  G06K17/00

摘要： A method is provided to determine unique identifiers. A physical item has an RFID integrated circuit (IC) having a unique identifier and a secret. The RFID IC may be configured to provide an identifier portion and a response to a previously sent challenge, where the identifier portion by itself is insufficient to completely identify the IC or item and the response is based on the challenge and the secret. Attempts are made to verify the response using a set of potential secrets determined using the identifier portion. If the response is successfully verified using a certain secret, the secret may then be used to determine one or more other identifier portions. The unique, complete identifier may then be determined from a combination of at least the identifier portions.

公开(公告)号：US11062190B1

公开(公告)日：2021-07-13

申请号：US16556587

申请日：2019-08-30

申请人： Impinj, Inc.

发明人： Christopher J. Diorio ,  Joel Peshkin

IPC分类号： G06K19/07

摘要： RFID tags capable of transitioning between a private state and one or more public states are provided. In the private state, tags may participate in an inventory round without restriction. In a public state, tags may be prevented from participating in an inventory round, allowed to participate without providing actual identifying information, or allowed to participate providing an alternate identifier. Whether and how the tag responds in a public state may depend on certain conditions including if one or more of the tag's flags are asserted or deasserted. A reader may select a public tag for inventorying by verifying itself, and the tag then asserting or deasserting one or more of its flags accordingly. The asserted or deasserted flag(s) may be used to determine whether and how a tag in a public state participates in an inventory round.