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HSMS Södermanland (1693)
The High-Speed SECS Message Services (HSMS) protocol is a Session layer protocol for communication between production equipment and factory control systems in semiconductor factories. HSMS defines a TCP/IP based session for use with sending SECS-II messages. It is intended as a high speed alternative to the serial (RS-232 based) SECS-I protocol. HSMS is defined in the standard SEMI SEMI is an industry association comprising companies involved in the electronics design and manufacturing supply chain. They provide equipment, materials and services for the manufacture of semiconductors, photovoltaic panels, LED and flat pan ... E37, and its subordinate standards: SEMI E37.1, and the withdrawn SEMI E37.2. The E37 standard, labelled Generic Services defines how to establish and break a TCP/IP connection, begin and end a logical link over that connection, send data (particularly SECS-II messages), recognize error conditions, and test connection integrity. The E37.1 standard, label ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Session Layer
In the seven-layer OSI model of computer networking, the session layer is layer 5. The session layer provides the mechanism for opening, closing and managing a session between end-user application processes, i.e., a semi-permanent dialogue. Communication sessions consist of requests and responses that occur between applications. Session-layer services are commonly used in application environments that make use of remote procedure calls (RPCs). An example of a session-layer protocol is the OSI protocol suite session-layer protocol, also known as X.225 or ISO 8327. In case of a connection loss this protocol may try to recover the connection. If a connection is not used for a long period, the session-layer protocol may close it and re-open it. It provides for either full duplex or half-duplex operation and provides synchronization points in the stream of exchanged messages. Other examples of session layer implementations include Zone Information Protocol (ZIP) – the Apple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCP/IP
The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP), and the Internet Protocol (IP). Early versions of this networking model were known as the Department of Defense (DoD) model because the research and development were funded by the United States Department of Defense through DARPA. The Internet protocol suite provides end-to-end data communication specifying how data should be packetized, addressed, transmitted, routed, and received. This functionality is organized into four abstraction layers, which classify all related protocols according to each protocol's scope of networking. An implementation of the layers for a particular application forms a protocol stack. From lowest to highest, the layers are the li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SECS-II
The SECS-II (SEMI Equipment Communications Standard, Part 2), sometimes called SEMI E5, is a communication protocol used in the semiconductor industry between devices involved in manufacturing. Much like the protocols in the OSI model, SECS-II is a layer above SECS-I and HSMS. While SECS-I and HSMS define how the communications are transmitted (such as over RS-232C or Ethernet), SECS-II defines the format and content of messages that can be sent over SECS-I or HSMS. The protocol is maintained by the SEMI organization, from which copies of the SEMI E5 standard may be obtained for a fee. Usage The SECS-II defines the message structure between equipment and host. Most of the SEMI E5 standard is a large library of possible messages – a few of which have redundant functionality with different message structures. Most equipment support only a restricted subset of these messages. Some equipments define custom SECS-II messages that are not part of the SEMI E5 standard. Messages Only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RS-232
In telecommunications, RS-232 or Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a ''DTE'' (''data terminal equipment'') such as a computer terminal or PC, and a ''DCE'' ('' data circuit-terminating equipment'' or '' data communication equipment''), such as a modem. The standard defines the electrical characteristics and timing of signals, the meaning of signals, and the physical size and pinout of connectors. The current version of the standard is ''TIA-232-F Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange'', issued in 1997. The RS-232 standard had been commonly used with serial ports and serial cables. It is still widely used in industrial communication devices. A serial port complying with the RS-232 standard was once a standard feature of many types of computers. Personal computers used them ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SECS-I
The SECS-I (SEMI Equipment Communications Standard, Part 1), sometimes called SEMI E4, provide the syntactical details (like frame formats, etc.) for communication between a semiconductor manufacturing equipment and a host machine. SECS-I works on RS 232 based serial links and define how the communications are transmitted over RS-232C In telecommunications, RS-232 or Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a ''DTE'' (''data terminal equipment'') such as a computer .... HSMS (High Speed SECS Message Services) provides the corresponding specification for Ethernet-based networks. References Communications protocols {{Measurement-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SEMI
SEMI is an industry association comprising companies involved in the electronics design and manufacturing supply chain. They provide equipment, materials and services for the manufacture of semiconductors, photovoltaic panels, LED and flat panel displays, micro-electromechanical systems (MEMS), printed and flexible electronics, and related micro and nano-technologies. SEMI is headquartered in Milpitas, California, and has offices in Bangalore; Berlin; Brussels; Hsinchu; Seoul; Shanghai; Singapore; Tokyo; and Washington, D.C. Its main activities include conferences and trade shows, development of industry standards, market research reporting, and industry advocacy. The president and chief executive officer of the organization is Ajit Manocha. The previous CEO was Dennis P. McGuirk, and before him, Stanley T. Myers. Global advocacy SEMI Global Advocacy represents the interests of the semiconductor industry's design, manufacturing and supply chain businesses worldwide. SEMI pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor Device Fabrication
Semiconductor device fabrication is the process used to manufacture semiconductor devices, typically integrated circuits (ICs) such as microprocessors, microcontrollers, and memories (such as Random-access memory, RAM and flash memory). It is a multiple-step Photolithography, photolithographic and physico-chemical process (with steps such as thermal oxidation, thin-film deposition, ion-implantation, etching) during which electronic circuits are gradually created on a wafer (electronics), wafer, typically made of pure single-crystal semiconducting material. Silicon is almost always used, but various compound semiconductors are used for specialized applications. This article focuses on the manufacture of integrated circuits, however steps such as etching and photolithography can be used to manufacture other devices such as LCD and OLED displays. The fabrication process is performed in highly specialized semiconductor fabrication plants, also called foundries or "fabs", with the cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
