Abstract in simplified Chinese:本发明提供一种印刷电路板之嵌入式薄膜电阻制造方法,其主要系在具有导电线路之印刷电路板中形成一电阻层,以达到节省电路板放置电阻之空间,缩小电路板之尺寸;减低传统电阻两端接脚产生之电容效应,增强信号传输之速度及品质;可借由传统印刷电路板制程设备而完成,而无需添购太多新型之设备;并具有量产化及降低制造成本之优点。
Abstract in simplified Chinese:本发明提供一种印刷电路板之嵌入式薄膜电阻制造方法,其主要系在具有导电线路之印刷电路板中形成一电阻层,以达到节省电路板放置电阻之空间,缩小电路板之尺寸;减低传统电阻两端接脚产生之电容效应,增强信号传输之速度及品质;可借由传统印刷电路板制程设备而完成,而无需添购太多新型之设备;并具有量产化及降低制造成本之优点。
Abstract:
PROBLEM TO BE SOLVED: To provide an electrical test method for a printed circuit board actualized by a dedicated-type tester through the manufacture of conductive rubber and a printed circuit board of a special shape, and solving a problem wherein measurement of high-degree analysis on a minute circuit has not been performed by a known measurement method using the short-circuiting and circuit cutting of a printed circuit board, as to an electrical test method for a printed circuit board utilizing conductive rubber. SOLUTION: This electrical test method for a printed circuit board is actualized by the dedicated-type tester through the manufacture of the conductive rubber and the printed circuit board of a special shape. Further, a defect is eliminated that measurement of high-degree analysis on a minute circuit has been impossible by a known measurement method using the short-circuiting and circuit cutting of a printed circuit board. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing a buried thin film resistor of a printed board. SOLUTION: A resistor layer is formed in a printed board having a conductive circuit in order to save the space for arranging a resistor in the board thus reducing the size of the board. Capacitance effect of pins at the opposite ends of a traditional resistor is reduced in order to enhance the speed and quality of signal transmission. It can be completed by a traditional production facility of printed board without purchasing a new facility and has advantages of mass production and reduction in production cost. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A memory module (20, Fig 3) contains a memory checker 50, which comprises a parity checker 51, a single bit storage 52 and a parity generator 53. Parity bits of incoming data are not stored, and parity bits for outgoing data are generated from the data by parity generator 53. If the parity bit of an incoming data byte is incorrect, the bit in storage 52 is set, whereby the calculated parity bit for the next outgoing byte is deliberately made incorrect; this causes an external parity checker (40) to generate a parity error interrupt (43).
Abstract:
A new memory checker comprised of a parity checker (51), a bit storage (52), and a parity generator (53), and installed in the memory module (20) of a computer system (10) for checking data error, wherein the parity checker (51) receives the data bus and input parity signal from the computer system (10) to check out error from the data been fetched from the memory module (20) and then to provide an interrupt signal (43) to the computer system (10) upon the checking of an error.
Abstract:
The memory checking circuit has a parity checking circuit (51), a bit memory (52) and a parity generator (53) and is integrated in the memory module (20) of a computer system (10) for the purpose of determining data errors; the computer (10) feeds data on the data bus (31) and the parity signal (32) to the parity checking circuit (51) in order to determine errors in the data read from the memory module (20) and, once an error has been established, to generate an interrupt signal (43) which is fed to the computer (10).
Abstract:
A parity bit memory simulator including a parity bit memory formed of a single bit memory of fixed address length, which replaces the single bit parity RAM of variable address length of conventional memory module, and connected with its address signal line to the data bus of the memory module so that the parity bit memory provides and store parity bits for the computer system without changing the circuit layout of the data memory or caring about the capacity of the memory module. A voltage level detector and a refreshing operation detector can be installed in the parity bit memory to improve the error detecting function of the dynamic random access memory module in the parity bit system.
Abstract:
A method for fabricating the embedded thin film resistors of a printed circuit board is provided. The embedded thin film resistors are formed using a resistor layer built in the printed circuit board. Compared with conventional discrete resistors, embedded thin film resistors contribute to a smaller printed circuit board as the space for installing conventional resistors is saved, and better signal transmission speed and quality as the capacitive reactance effect caused by two connectors of the conventional resistors is avoided. The method for fabricating the embedded thin film resistors provided by the invention can be conducted using the process and equipment for conventional printed circuit boards and thereby saving the investment on new types of equipment. The method can be applied in the mass production of printed circuit boards and thereby reduce the manufacturing cost significantly.