摘要:
In accordance with the teachings of this invention a method for positioning components of input/output circuits is provided. These components are positioned on a semiconductor substrate. The semiconductor substrate includes other than input/output circuits. Each input/output circuit is provided for processing a single bit of information within a data word containing multiple bits. The method includes the step of (1) dividing each input/output circuit into groups containing similar functional subcomponents; (2) forming a vertical column of subcomponents for each input/output circuit and connecting these subcomponents to perform the function; (3) placing said columns in adjacency to form a plurality of columns with like subcomponents immediately adjacent to each other forming row groups of said like subcomponents; and (4) forming guard rings around the subcomponent row groups if required. Also in accordance with this invention, a group of input/output circuits is provided. The group is positioned on an integrated circuit substrate that contains other than input/output circuits. The input/output circuits group includes a plurality of columns of circuitry component where each column represents all of the input/output circuit components for processing a single bit of information in a group of bits, a plurality of rows positioned across the columns containing like devices among said input/output circuits, and at least one guard ring containing at least one of the plurality of rows.
摘要:
The non-volatile semiconductor memory includes a one device dynamic volatile memory cell having a storage capacitor (C s ) with a plate (12) and a storage node (10) coupled to a non-volatile device having a floating gate (FG), a control gate (24) and a voltage divider (16) having first and second serially-connected capacitors (C1, C2), with the floating gate (FG) being disposed at the common point between the first and second capacitors. The plate (12) of the storage capacitor is connected to a reference voltage source. The control gate (24) is preferably capacitively coupled to the floating gate (FG) through the first (C1) capacitor which includes a dual charge or electron injector structure (26). The capacitance of the first capacitor (C1) has a value substantially less than that of the second capacitor (C2).
摘要:
The non-volatile semiconductor memory includes a one device dynamic volatile memory cell having a storage capacitor (C s ) with a plate (12) and a storage node (10) coupled to a non-volatile device having a floating gate (FG), a control gate (24) and a voltage divider (16) having first and second serially-connected capacitors (C1, C2), with the floating gate (FG) being disposed at the common point between the first and second capacitors. The plate (12) of the storage capacitor is connected to a reference voltage source. The control gate (24) is preferably capacitively coupled to the floating gate (FG) through the first (C1) capacitor which includes a dual charge or electron injector structure (26). The capacitance of the first capacitor (C1) has a value substantially less than that of the second capacitor (C2).
摘要:
A saturation-limited bipolar transistor device or circuit and a method of making same are provided which includes a merged NPN transistor (T1) and a PNP transistor (P1) structure formed so as to produce denser cells or circuits. A simple process is used to form the structure which includes a double diffused technique for making the PNP transistor (P1). The PNP transistor (P1) has a double diffused emitter-base arrangement wherein the emitter (30) is asymmetrically positioned with respect to the base (26) so as to also serve as a contactforthe base (34) of the NPN transistor (T1). The PNP transistor (P1) limits the input current by bypassing excess current to a silicon semiconductor substrate or chip. The structure includes an N type epitaxial layer (14) formed on an N type subcollector (12) with a P type region (32, 34) provided near the surface of the epitaxial layer (14). The epitaxial layer serves as the NPN collector and as the PNP base contact region. A first N type region (26) is formed through the P type region (32, 34) extending from the surface of the epitaxial layer (14) to the subcollector (12) dividing the P type region into first and second sections (32, 34) which serve as the PNP collector region and the NPN base region, respectively. A second N type region (38) is formed in the second section (34) of the P type region at the surface of the epitaxial layer (14) acting as the NPN emitter and a P+ region (30) is formed in the first N type region (26) at the surface of the epitaxial layer (14) extending into the second section (34) of the P type region which forms the NPN transistor base. This P+ region (30) serves as the PNP emitter and as the NPN base contact.
摘要:
In accordance with the teachings of this invention a method for positioning components of input/output circuits is provided. These components are positioned on a semiconductor substrate. The semiconductor substrate includes other than input/output circuits. Each input/output circuit is provided for processing a single bit of information within a data word containing multiple bits. The method includes the step of (1) dividing each input/output circuit into groups containing similar functional subcomponents; (2) forming a vertical column of subcomponents for each input/output circuit and connecting these subcomponents to perform the function; (3) placing said columns in adjacency to form a plurality of columns with like subcomponents immediately adjacent to each other forming row groups of said like subcomponents; and (4) forming guard rings around the subcomponent row groups if required. Also in accordance with this invention, a group of input/output circuits is provided. The group is positioned on an integrated circuit substrate that contains other than input/output circuits. The input/output circuits group includes a plurality of columns of circuitry component where each column represents all of the input/output circuit components for processing a single bit of information in a group of bits, a plurality of rows positioned across the columns containing like devices among said input/output circuits, and at least one guard ring containing at least one of the plurality of rows.
摘要:
A saturation-limited bipolar transistor device or circuit and a method of making same are provided which includes a merged NPN transistor (T1) and a PNP transistor (P1) structure formed so as to produce denser cells or circuits. A simple process is used to form the structure which includes a double diffused technique for making the PNP transistor (P1). The PNP transistor (P1) has a double diffused emitter-base arrangement wherein the emitter (30) is asymmetrically positioned with respect to the base (26) so as to also serve as a contactforthe base (34) of the NPN transistor (T1). The PNP transistor (P1) limits the input current by bypassing excess current to a silicon semiconductor substrate or chip. The structure includes an N type epitaxial layer (14) formed on an N type subcollector (12) with a P type region (32, 34) provided near the surface of the epitaxial layer (14). The epitaxial layer serves as the NPN collector and as the PNP base contact region. A first N type region (26) is formed through the P type region (32, 34) extending from the surface of the epitaxial layer (14) to the subcollector (12) dividing the P type region into first and second sections (32, 34) which serve as the PNP collector region and the NPN base region, respectively. A second N type region (38) is formed in the second section (34) of the P type region at the surface of the epitaxial layer (14) acting as the NPN emitter and a P+ region (30) is formed in the first N type region (26) at the surface of the epitaxial layer (14) extending into the second section (34) of the P type region which forms the NPN transistor base. This P+ region (30) serves as the PNP emitter and as the NPN base contact.