Patents by Inventor Sameer S. Haddad
Sameer S. Haddad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11545583Abstract: An electronic device can include a NVM cell. The NVM cell can include a drain/source region, a source/drain region, a floating gate electrode, a control gate electrode, and a select gate electrode. The NVM cell can be fabricated using a process flow that also forms a power transistor, high-voltage transistors, and low-voltage transistors on the same die. A relatively small size for the NVM can be formed using a hard mask to define a gate stack and spacer between gate stack and select gate electrode. A gate dielectric layer can be used for the select gate electrode and transistors in a low-voltage region and allows for a fast read access time.Type: GrantFiled: February 5, 2021Date of Patent: January 3, 2023Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Weize Chen, Sameer S. Haddad, Bruce B. Greenwood, Mark Griswold, Kenneth A. Bates
-
Publication number: 20220254920Abstract: An electronic device can include a NVM cell. The NVM cell can include a drain/source region, a source/drain region, a floating gate electrode, a control gate electrode, and a select gate electrode. The NVM cell can be fabricated using a process flow that also forms a power transistor, high-voltage transistors, and low-voltage transistors on the same die. A relatively small size for the NVM can be formed using a hard mask to define a gate stack and spacer between gate stack and select gate electrode. A gate dielectric layer can be used for the select gate electrode and transistors in a low-voltage region and allows for a fast read access time.Type: ApplicationFiled: February 5, 2021Publication date: August 11, 2022Applicant: Semiconductor Components Industries, LLCInventors: Weize Chen, Sameer S. Haddad, Bruce B. Greenwood, Mark Griswold, Kenneth A. Bates
-
Patent number: 11342429Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: GrantFiled: September 30, 2020Date of Patent: May 24, 2022Assignee: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon Kim, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. Haddad, James Pak
-
Publication number: 20210091198Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: ApplicationFiled: September 30, 2020Publication date: March 25, 2021Applicant: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon KIM, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. HADDAD, James Pak
-
Patent number: 10923601Abstract: A split gate device that includes a memory gate and a select gate disposed side by side, a dielectric structure having a first portion disposed between the memory gate and a substrate and a second portion disposed along an inner sidewall of the select gate to separate the select gate from the memory gate, and a spacer formed over the select gate along an inner sidewall of the memory gate. Other embodiments of embedded split gate devices including high voltage and low voltage transistors are also disclosed.Type: GrantFiled: April 10, 2018Date of Patent: February 16, 2021Assignee: Cypress Semiconductor CorporationInventors: Chun Chen, Shenqing Fang, Unsoon Kim, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. Haddad
-
Publication number: 20180323314Abstract: A split gate device that includes a memory gate and a select gate disposed side by side, a dielectric structure having a first portion disposed between the memory gate and a substrate and a second portion disposed along an inner sidewall of the select gate to separate the select gate from the memory gate, and a spacer formed over the select gate along an inner sidewall of the memory gate. Other embodiments of embedded split gate devices including high voltage and low voltage transistors are also disclosed.Type: ApplicationFiled: April 10, 2018Publication date: November 8, 2018Applicant: Cypress Semiconductor CorporationInventors: Chun Chen, Shenqing Fang, Unsoon KIM, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. HADDAD
-
Patent number: 9966477Abstract: Embodiments provide a split gate device, methods for fabricating a split gate device, and integrated methods for fabricating a split gate device and a periphery device. In an embodiment, the split gate device is a charge trapping split gate device, which includes a charge trapping layer. In another embodiment, the split gate device is a non-volatile memory cell, which can be formed according to embodiments as standalone or embedded with a periphery device.Type: GrantFiled: December 14, 2012Date of Patent: May 8, 2018Assignee: Cypress Semiconductor CorporationInventors: Chun Chen, Shenqing Fang, Unsoon Kim, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. Haddad
-
Patent number: 9837469Abstract: An example system includes a processing circuit coupled to a memory system and an interface coupled between the processing circuit and a device. The memory system includes a resistive memory array comprising multiple memory structures. Each memory structure comprises a resistive memory cell and is associated with a P-I-N diode. The processing circuit is to access the resistive memory array responsive to a signal received from the device via the interface.Type: GrantFiled: June 29, 2016Date of Patent: December 5, 2017Assignee: Cypress Semiconductor CorporationInventors: Seungmoo Choi, Sameer S. Haddad
-
Patent number: 9449690Abstract: A method of programming a memory system by selectively applying a program voltage to a selected wordline connected to a memory transistor to be programmed. A first bias voltage is applied to a first wordline adjacent to the source side of the selected wordline. The first bias voltage is also applied to a second wordline adjacent to the drain side of the selected wordline. A second bias voltage is applied to a third wordline adjacent to the drain side of the second wordline. A third bias voltage is applied to a fourth wordline adjacent to the source side of the first wordline. A pass voltage is also applied to the remaining wordlines that do not have one of a bias voltage and a program voltage applied, the pass voltage a selected voltage level.Type: GrantFiled: April 3, 2013Date of Patent: September 20, 2016Assignee: Cypress Semiconductor CorporationInventors: Swaroop Kaza, Youseok Suh, Di Li, Sameer S. Haddad
-
Patent number: 7049188Abstract: A lateral doped channel. A first doping material is implanted substantially vertically into a region adjacent to a gate structure. A diffusion process diffuses the first doping material into a channel region beneath the gate structure. A second doping material is implanted substantially vertically into the region adjacent to a gate structure. The second implantation forms source/drain regions and may terminate the channel region. The channel region thus comprises a laterally non-uniform doping profile which beneficially mitigates the short channel effect and is highly advantageous as compensation for manufacturing process variations in channel length.Type: GrantFiled: November 26, 2002Date of Patent: May 23, 2006Assignee: Advanced Micro Devices, Inc.Inventors: Nga-Ching Wong, Timothy Thurgate, Sameer S. Haddad
-
Patent number: 6974989Abstract: According to one exemplary embodiment, a structure comprises a substrate. The structure further comprises at least one memory cell situated on the substrate. The structure further comprises a first interlayer dielectric layer situated over the at least one memory cell and over the substrate. The structure further comprises an oxide cap layer situated on the first interlayer dielectric layer. According to this exemplary embodiment, the structure further comprises an etch stop layer comprising TCS nitride situated on the oxide cap layer, where the etch stop layer blocks UV radiation. The structure further comprises a second interlayer dielectric layer situated on the etch stop layer. The structure may further comprise a trench situated in the second interlayer dielectric layer and the etch stop layer, where the trench is filled with copper. The structure may further comprise an anti-reflective coating layer situated on the second interlayer dielectric layer.Type: GrantFiled: May 6, 2004Date of Patent: December 13, 2005Assignee: Spansion LLCInventors: Cinti X. Chen, Boon-Yong Ang, Hajime Wada, Sameer S. Haddad, Inkuk Kang
-
Patent number: 6911704Abstract: A memory cell array comprises a two dimensional array of memory cells fabricated on a semiconductor substrate. The memory cells are arranged in a plurality of rows and a plurality columns. Each column of memory cells comprising a plurality of alternating channel regions and source/drain regions. A conductive interconnect is positioned above each source/drain region and coupled to only one other source/drain region. The one other source/drain region is in a second column that is adjacent to the column. The conductive interconnects are positioned such that every other conductive interconnect connects to the adjacent column to a right side of the column and every other conductive interconnect connects to adjacent column to the left side of the column. A plurality of source/drain control lines extends between adjacent columns of memory cells and electrically couples to each conductive interconnect that couples between the adjacent columns.Type: GrantFiled: October 14, 2003Date of Patent: June 28, 2005Assignee: Advanced Micro Devices, Inc.Inventors: Mark W. Randolph, Sameer S. Haddad, Timothy Thurgate, Richard Fastow
-
Patent number: 6894925Abstract: A flash memory cell programming system and method that facilitate efficient and quick operation of a flash memory cell by providing a biasable well (e.g., substrate) is presented. The biasable well flash memory cell enables increases in electrical field strengths in a manner that eases resistance to charge penetration of a dielectric barrier (e.g., oxide) around a charge trapping region (e.g., a floating gate). The present biasable well system and method also create a self convergence point that increase control during programming operations and reduces the chances of excessive correction for over erased memory cells. The biasing can assist hard programming to store information and/or soft programming to correct the effects of over-erasing. The biasing can also reduce stress on a drain voltage pump, reduce leakage current and reduce programming durations. Some implementations also include a biasable control gate component, biasable source component and biasable drain component.Type: GrantFiled: January 14, 2003Date of Patent: May 17, 2005Assignee: Advanced Micro Devices, Inc.Inventors: Sheunghee Park, Sameer S. Haddad, Chi Chang, Richard M. Fastow, Ming Sang Kwan, Zhigang Wang
-
Patent number: 6894932Abstract: A non-volatile memory device includes a semiconductor substrate and a pair of buried bitlines within the substrate. A bottom dielectric layer is formed over the substrate and a charge trapping dielectric layer is formed over the bottom dielectric layer. A multi-layer top dielectric stack is formed over the charge trapping dielectric layer. The top dielectric stack includes a first oxide layer, a nitride layer, and a second oxide layer. A wordline is formed over the top dielectric stack. The multi-layer top dielectric stack has a reduced electrical thickness, thereby providing a memory device, which is operative to be programmed using a reduced operating voltage of less than about +8 Volts.Type: GrantFiled: November 18, 2003Date of Patent: May 17, 2005Assignee: Advanced Micro Devices, Inc.Inventors: Ashot Melik-Martirosian, Mark W. Randolph, Sameer S. Haddad
-
Patent number: 6868014Abstract: A non-volatile memory device includes a semiconductor substrate and a pair of buried bitlines within the substrate. A scaled down dielectric stack is formed over the substrate. The scaled down dielectric stack includes a scaled down top dielectric layer, a scaled down charge trapping dielectric layer and a bottom dielectric layer. A wordline is formed over the dielectric stack. The memory device is operative to be programmed using a reduced wordline operating voltage of less than about +8 Volts, and to be erased using a reduced wordline operating voltage of less than about ?6 Volts.Type: GrantFiled: May 6, 2003Date of Patent: March 15, 2005Assignee: Advanced Micro Devices, Inc.Inventors: Ashot Melik-Martirosian, Mark W. Randolph, Sameer S. Haddad
-
Patent number: 6862221Abstract: A non-volatile memory device includes a semiconductor substrate and a source and drain within the substrate. A dielectric stack is formed over the substrate. The dielectric stack includes a thin top dielectric layer. A gate electrode is formed over the dielectric stack. The memory device is operative to perform a direct tunneling channel erase operation in which a pair of charge storing cells within a charge storing layer are erased via direct tunneling through the thin top dielectric layer.Type: GrantFiled: June 11, 2003Date of Patent: March 1, 2005Assignee: Advanced Micro Devices, Inc.Inventors: Ashot Melik-Martirosian, Mark W. Randolph, Sameer S. Haddad
-
Patent number: 6808996Abstract: A method for making a ULSI MOSFET includes covering core gate stacks with a first protective layer, etching away the first layer such that intended source regions of the substrate are exposed, and implanting dopant into the source regions. A second protective layer is then deposited over the first layer and is etched back to conform to the first layer, covering only the sides of the gate stacks, and exposing intended drain regions of the substrate. Dopant is then implanted into the drain regions. During subsequent manufacturing steps including ILD formation and metallization, mobile ions and other process-induced charges are blocked from entering the floating gates of the gate stacks by the protective layers, thereby preventing unwanted charge gain/loss.Type: GrantFiled: August 18, 1999Date of Patent: October 26, 2004Assignee: Advanced Micro Devices, Inc.Inventors: Tuan D. Pham, Mark T. Ramsbey, Sameer S. Haddad, Angela T. Hui, Yu Sun, Chi Chang
-
Patent number: 6795342Abstract: A system for programming a charge stored on a charge storage region of a dielectric charge trapping layer of a first dual bit dielectric memory cell within an array of dual bit dielectric memory cells comprises applying a positive source programming bias to a first bit line that is the source of the selected memory cell while applying a drain programming voltage to a second bit line that forms a drain junction with the channel region and while applying a positive voltage to a selected word line. The source voltage may be applied by coupling the source bit line to a voltage divider or by coupling the source bit line to a resistor which in turn is coupled to a ground. A negative programming bias may also be applied to the substrate and to unselected word lines.Type: GrantFiled: December 2, 2002Date of Patent: September 21, 2004Assignee: Advanced Micro Devices, Inc.Inventors: Yi He, Zhizheng Liu, Mark W. Randolph, Sameer S. Haddad
-
Patent number: 6795357Abstract: A method of detecting a charge stored on a charge storage region of a first dual bit dielectric memory cell within an array of dual bit dielectric memory cells comprises applying a source voltage to a first bit line that is the source of the selected memory cell and applying a drain voltage to a second bit line that forms a drain junction with the channel region. The source voltage may be a small positive voltage and the drain voltage may be greater than the source voltage. A read voltage is applied to a selected one of the word lines that forms a gate over the charge storage region and a bias voltage is applied to non-selected word lines in the array. The bias voltage may be a negative voltage.Type: GrantFiled: October 30, 2002Date of Patent: September 21, 2004Assignee: Advance Micro Devices, Inc.Inventors: Zhizheng Liu, Yi He, Mark W. Randolph, Sameer S. Haddad
-
Publication number: 20040102026Abstract: A lateral doped channel. A first doping material is implanted substantially vertically into a region adjacent to a gate structure. A diffusion process diffuses the first doping material into a channel region beneath the gate structure. A second doping material is implanted substantially vertically into the region adjacent to a gate structure. The second implantation forms source/drain regions and may terminate the channel region. The channel region thus comprises a laterally non-uniform doping profile which beneficially mitigates the short channel effect and is highly advantageous as compensation for manufacturing process variations in channel length.Type: ApplicationFiled: November 26, 2002Publication date: May 27, 2004Inventors: Nga-Ching Wong, Timothy Thurgate, Sameer S. Haddad