Patents Assigned to Powerchip Technology Corporation
  • Publication number: 20200266238
    Abstract: A resistive random access memory including a stacked structure, at least one vertical electrode, a selector element, and a plurality of resistance changeable structures is provided. The stacked structure is formed by a plurality of horizontal electrodes and a plurality of first dielectric layers stacked alternately, wherein the stacked structure has at least one channel hole extending through the horizontal electrodes and the first dielectric layers. The vertical electrode is formed in the at least one channel hole. The selector element is formed in the channel hole between the vertical electrode and the stacked structure. The resistance changeable structures are disposed on the surface of each of the horizontal electrodes and are in contact with the selector element in the channel hole.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 20, 2020
    Applicant: Powerchip Technology Corporation
    Inventor: Zih-Song Wang
  • Publication number: 20200251480
    Abstract: A memory structure and a manufacturing method thereof are provided. In the memory structure, a first dielectric layer is disposed on a substrate; a pair of gate stack structures is disposed on the first dielectric layer and each gate stack structure includes a word line, an erase gate and a second dielectric layer; a third dielectric layer is disposed on the surfaces of the gate stack structures; a pair of floating gates is disposed between the gate stack structures and located respectively on sidewalls of the gate stack structures, and top surfaces of the floating gates are lower than those of the erase gates; a fourth dielectric layer covers the first and third dielectric layers and the floating gates; a control gate is disposed on the fourth dielectric layer between the floating gates; and a doped region is disposed in the substrate beside the gate stack structures.
    Type: Application
    Filed: March 26, 2019
    Publication date: August 6, 2020
    Applicant: Powerchip Technology Corporation
    Inventor: Wen-Yueh Jang
  • Publication number: 20200241431
    Abstract: A method for designing a photomask includes calculating an open ratio of an initial photomask to determine whether the open ratio of the initial photomask is less than 25%, and then changing a design of the initial photomask in response to determining the open ratio is less than 25%, such that a changed photomask has a reverse tone to the design of the initial photomask, and an open ratio of the changed photomask is 75% or more. The method can solve the issue caused by thermal expansion of the photomask.
    Type: Application
    Filed: April 3, 2019
    Publication date: July 30, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Hsiao-Chiang Lin, Yu-Hsuan Chang, Li-Chun Tseng
  • Publication number: 20200235102
    Abstract: Provided is a memory structure including first and second transistors, an isolation structure, a conductive layer and a capacitor. The first and second transistors are disposed on the substrate. The isolation structure is disposed in the substrate between the first and second transistors. The conductive layer is disposed above the first and second transistors and includes a circuit portion and a dummy portion. The circuit portion is electrically connected to the first and second transistors. The dummy portion is located above the isolation structure. The capacitor is disposed between the first and second transistors. The capacitor includes a body portion and first and second extension portions. The first and second extension portions extend from the body portion to the source/drain regions of the first and the second transistors, respectively. The first and second extension portions are disposed between the circuit portion and the dummy portion, respectively.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 23, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Shih-Ping Lee, Shyng-Yeuan Che, Hsiao-Pei Lin, Po-Yi Wu, Kuo-Fang Huang
  • Publication number: 20200235220
    Abstract: A manufacturing method of a semiconductor device includes forming a plurality of flash memory structures on a semiconductor substrate, wherein each of the flash memory structures includes a floating gate formed on the semiconductor substrate and a control gate formed on the floating gate; forming at least one pseudo contact between the plurality of flash memory structures; forming a liner film conformally on a surface of the pseudo contact; forming an interlayer dielectric layer on the whole semiconductor substrate to cover the pseudo contact and form at least one air gap between the pseudo contact and the flash memory structure; planarizing the interlayer dielectric layer until the top of the pseudo contact is exposed; removing the pseudo contact to form a contact opening; and forming a conductive material in the contact opening.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 23, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Hung-Kwei Liao, Chen-Chiang Liu, Kuo-Sheng Shih, Yung-Yao Shih, Ming-Tsung Hsu
  • Publication number: 20200227444
    Abstract: A memory structure including a SOI substrate, a first transistor, a second transistor, an isolation structure and a capacitor is provided. The SOI substrate includes a silicon base, a dielectric layer and a silicon layer. The first transistor and the second transistor are disposed on the silicon layer. The isolation structure is disposed in the silicon layer between the first transistor and the second transistor. The capacitor is disposed between the first transistor and the second transistor. The capacitor includes a body portion, a first extension portion, a second extension portion and a third extension portion. The first extension portion extends from the body portion to a source/drain region of the first transistor. The second extension portion extends from the body portion to a source/drain region of the second transistor. The third extension portion extends from the body portion, penetrates through the isolation structure and extends into the dielectric layer.
    Type: Application
    Filed: February 26, 2019
    Publication date: July 16, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Shyng-Yeuan Che, Shih-Ping Lee
  • Publication number: 20200219876
    Abstract: Provided is a semiconductor device including a substrate, an isolation structure, a barrier structure, a first conductive layer, a second conductive layer, a first gate dielectric layer, and a second gate dielectric layer. The substrate has a first region and a second region. The barrier structure is located on the isolation structure. The first conductive layer is located on the first region. The second conductive layer is located on the second region. The first gate dielectric layer is located between the first conductive layer and the substrate in the first region. The second gate dielectric layer is located between the second conductive layer and the substrate in the second region. The first gate dielectric layer and the second gate dielectric layer are separated by the isolation structure. A method of manufacturing the semiconductor device is also provided.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 9, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Hung-Kwei Liao, Chen-Chiang Liu, Kuo-Sheng Shih, Yung-Yao Shih, Ming-Tsung Hsu
  • Publication number: 20200194598
    Abstract: A memory device and a manufacturing method are provided. The memory device includes a substrate, first and second word lines, first and second charge trapping layers, a first drain region and a first source region. The substrate has first and second recesses extending along a first direction. The first and second word lines are respectively disposed in the first and second recesses. The first and second charge trapping layers are respectively disposed in the first and second recesses. The first charge trapping layer is located between the first word line and a sidewall of the first recess. The second charge trapping layer is located between the second word line and a sidewall of the second recess. The first and second drain regions are disposed in the substrate, and respectively extending between the first and the second charge trapping layers along a second direction.
    Type: Application
    Filed: March 25, 2019
    Publication date: June 18, 2020
    Applicant: Powerchip Technology Corporation
    Inventor: Wen-Yueh Jang
  • Publication number: 20200160922
    Abstract: A comparator (13) compares a pad voltage with a reference voltage (Vref1) to output a voltage (VCCOK), and a comparator (23) compares a low voltage with a reference voltage (Vref2) to output a voltage (VDDOK). A power-on circuit (2) includes a timer circuit (11) and starts a reference voltage generation circuit (12) after the power switch control circuit is started, and then starts the comparator (13). After the comparator (13) is started, a controller (30) starts a voltage down converter (4) when the voltage (VCCOK) is at the H level, and turns on a MOS transistor (Q1) when the voltage (VCCOK) is at the L level. A power-on circuit (3) includes a timer circuit (21) and starts a reference voltage generation circuit (22) after the voltage down converter (4) is started, and then starts a comparator (23). After the comparator (23) is started, the controller (30) enters the standby state.
    Type: Application
    Filed: March 7, 2019
    Publication date: May 21, 2020
    Applicant: Powerchip Technology Corporation
    Inventor: Tomofumi Kitani
  • Publication number: 20200160917
    Abstract: A page buffer circuit includes a latch circuit that temporarily stores data when data is written in or read out from a memory cell through a bit line, the page buffer circuit is configured using a switched capacitor circuit. The page buffer circuit includes a first capacitor connected to a sense terminal connected to one end of the latch circuit, a second capacitor connected to the bit line, a first switch interposed between the sense terminal and the second capacitor, a second switch interposed between the sense terminal and a supply voltage, a first transistor including a control terminal and a first element terminal connected to both terminals of the first switch in parallel, a second transistor including first and second element terminals connected between a second element terminal of the first transistor and a ground, and a control circuit controlling the first and second switches and the second transistor.
    Type: Application
    Filed: February 20, 2019
    Publication date: May 21, 2020
    Applicant: Powerchip Technology Corporation
    Inventor: Tomofumi Kitani
  • Patent number: 10629644
    Abstract: An image sensor includes a semiconductor substrate, a photodiode formed in the semiconductor substrate, a microlens disposed over the photodiode, a first transfer transistor, a second transfer transistor and a capacitor. The first transfer transistor and the second transfer transistor are formed on the semiconductor substrate, and a memory node is formed in the semiconductor substrate between the first transfer transistor and the second transfer transistor, wherein the first transfer transistor is coupled to the photodiode. The capacitor is formed between the first transfer transistor and the second transfer transistor, and the capacitor includes a first electrode coupled to the memory node, a second electrode on the first electrode and extending to an edge of the photodiode, and a dielectric layer between the first and the second electrodes.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 21, 2020
    Assignee: Powerchip Technology Corporation
    Inventors: Chih-Ping Chung, Ming-Yu Ho, Wen-Hao Huang, Saysamone Pittikoun
  • Publication number: 20200105816
    Abstract: An image sensor includes a semiconductor substrate, a photodiode formed in the semiconductor substrate, a microlens disposed over the photodiode, a first transfer transistor, a second transfer transistor and a capacitor. The first transfer transistor and the second transfer transistor are formed on the semiconductor substrate, and a memory node is formed in the semiconductor substrate between the first transfer transistor and the second transfer transistor, wherein the first transfer transistor is coupled to the photodiode. The capacitor is formed between the first transfer transistor and the second transfer transistor, and the capacitor includes a first electrode coupled to the memory node, a second electrode on the first electrode and extending to an edge of the photodiode, and a dielectric layer between the first and the second electrodes.
    Type: Application
    Filed: November 19, 2018
    Publication date: April 2, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Chih-Ping Chung, Ming-Yu Ho, Wen-Hao Huang, Saysamone Pittikoun
  • Publication number: 20200075648
    Abstract: An image sensor including a substrate, a light sensing device, a storage node, a buried gate structure, and a first light shielding layer is provided. The light sensing device is disposed in the substrate. The storage node is disposed in the substrate. The storage node and the light sensing device are separated from each other. The buried gate structure includes a buried gate and a first dielectric layer. The buried gate is disposed in the substrate and covers at least a portion of the storage node. The first dielectric layer is disposed between the buried gate and the substrate. The first light shielding layer is disposed on the buried gate and is located above the storage node. The first light shielding layer is electrically connected to the buried gate.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 5, 2020
    Applicant: Powerchip Technology Corporation
    Inventors: Shih-Ping Lee, Pin-Chieh Huang, Jui-Hung Hung, Yi-Chen Yeh, Cheng-Han Yang, Wen-Hao Huang
  • Publication number: 20190259773
    Abstract: An integrated circuit structure including a substrate, a stacked structure, and first contacts is provided. The stacked structure is disposed on the substrate and includes first dielectric layers and conductive layers alternately stacked. The stacked structure has openings passing through the conductive layers. The first contacts are located in the openings. Bottoms of the first contacts are located at different heights. The first contacts and the conductive layers are electrically connected in a one-to-one manner. The first contacts and the conductive layers that are not electrically connected to each other are isolated from each other.
    Type: Application
    Filed: May 28, 2018
    Publication date: August 22, 2019
    Applicant: Powerchip Technology Corporation
    Inventor: Zih-Song Wang
  • Publication number: 20190206885
    Abstract: A non-volatile memory structure including memory cells, at least one isolation layer, and at least one shield electrode is provided. The memory cells are disposed on a substrate. The isolation layer is located between the memory cells. The shield electrode is disposed on the isolation layer and electrically connected to a source line.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 4, 2019
    Applicant: Powerchip Technology Corporation
    Inventor: Zih-Song Wang
  • Publication number: 20190156882
    Abstract: A redundant circuit for a SRAM device is provided. The redundant circuit includes: a pair of a first transistor and a second transistor, connected between a power source voltage and a power source terminal of each of the input/output memory units, wherein the pair of the first transistor and the second transistor are connected in parallel with each other, and the first transistor has a greater mutual conductance than the second transistor; and a redundancy control circuit configured to detect a voltage of the power source terminal of each of the input/output memory units when the first transistor is turned off and the second transistor is turned on. When the detected voltage of the power source terminal is decreased by a predetermined value or more from a predetermined reference voltage, the input/output memory unit is determined in a defective state, and the input/output memory unit in the defective state is redundantly replaced with a normal input/output memory unit.
    Type: Application
    Filed: April 9, 2018
    Publication date: May 23, 2019
    Applicant: Powerchip Technology Corporation
    Inventor: Yuji Kihara
  • Patent number: 10290363
    Abstract: A non-volatile memory device and an error compensation method for verifying the same are provided. The non-volatile memory device includes a memory block, a word line driver, a bit line circuit and a controller. The memory block includes multiple memory cells. After a first programming process and a first verification process are performed on the memory cells, the controller performs reverse reading to the control terminals of the memory cells, applies a preset voltage to the control terminals of the memory cells according to preset programming data by using the word line driver, reads data from the memory cells by using the bit line circuit, and determines whether the data of each memory cell is normal according to the data read from the memory cells. When the data of specific memory cells is not normal, the controller performs a second programming process to the specific memory cells.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: May 14, 2019
    Assignee: Powerchip Technology Corporation
    Inventors: Ming-Chang Tsai, Chun-Yi Tu
  • Patent number: 10290644
    Abstract: A non-volatile memory structure including a substrate, at least one memory cell, a first doped region, a second doped region, and a third doped region is provided. The memory cell is disposed on the substrate and has a channel region located in the substrate. The first doped region, the second doped region, and the third doped region are sequentially disposed in the substrate in an arrangement direction toward the channel region, and the first doped region is farthest from the channel region. The first doped region and the third doped region are of a first conductive type, and the second doped region is of a second conductive type.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: May 14, 2019
    Assignee: Powerchip Technology Corporation
    Inventors: Chen-Liang Ma, Zih-Song Wang
  • Publication number: 20190115092
    Abstract: A non-volatile memory device and an error compensation method for verifying the same are provided. The non-volatile memory device includes a memory block, a word line driver, a bit line circuit and a controller. The memory block includes multiple memory cells. After a first programming process and a first verification process are performed on the memory cells, the controller performs reverse reading to the control terminals of the memory cells, applies a preset voltage to the control terminals of the memory cells according to preset programming data by using the word line driver, reads data from the memory cells by using the bit line circuit, and determines whether the data of each memory cell is normal according to the data read from the memory cells. When the data of specific memory cells is not normal, the controller performs a second programming process to the specific memory cells.
    Type: Application
    Filed: February 26, 2018
    Publication date: April 18, 2019
    Applicant: Powerchip Technology Corporation
    Inventors: Ming-Chang Tsai, Chun-Yi Tu
  • Patent number: 10121848
    Abstract: A method for fabricating a multi-layer, crown-shaped MIM capacitor is provided. A base having therein a conductive region within a capacitor-forming region is formed. An IMD layer is deposited on the base to cover the capacitor-forming region. A capacitor trench is formed within the capacitor-forming region. The capacitor trench penetrates through the IMD layer, thereby exposing a portion of the conductive region. A concentric capacitor lower electrode structure is formed within the capacitor trench. The concentric capacitor lower electrode structure includes a first electrode and a second electrode surrounded by the first electrode. The first electrode is in direct contact with the conductive region. A conductive supporting pedestal is formed within the capacitor trench for fixing and electrically connecting bottom portions of the first and second electrodes. A capacitor dielectric layer conformally lining the first and second electrodes and a top surface of the conductive supporting pedestal is formed.
    Type: Grant
    Filed: May 14, 2017
    Date of Patent: November 6, 2018
    Assignee: Powerchip Technology Corporation
    Inventors: Shyng-Yeuan Che, Wen-Yi Wong