摘要:
A method for manufacturing a printed wiring board includes forming a metal film on a surface of an insulative board, a plating resist on the metal film, and a plated-metal film on the metal film exposed from the plating resist, covering a portion of the plated-metal film with an etching resist, etching to reduce thickness of the plated-metal film exposed from the etching resist, removing the resists, and forming a wiring having a pad and a conductive circuit thinner than the pad by removing the metal film exposed through the removing of the plating resist, a solder-resist layer on the surface of the board and wiring, in the layer an opening exposing the pad and a portion of the circuit contiguous to the pad, a solder film on the pad and portion of the circuit exposed through the opening, and a solder bump on the pad by solder reflow.
摘要:
A combination substrate includes a first substrate having multiple wiring board mounting pads for installing a printed wiring board and multiple connection pads on the opposite side of the wiring board mounting pads, a second substrate having multiple package substrate mounting pads for loading one or more package substrates and multiple connection pads on the opposite side of the package substrate mounting pads, a resin component filling a space between the first substrate and the second substrate, and multiple component loading pads positioned to load an electronic component between the first substrate and the second substrate and formed on one of the first substrate and the second substrate. The connection pads of the second substrate are electrically connected to the connection pads of the first substrate.
摘要:
A client PC 10 adapted to be connected to a server apparatus 20 has a first information transmission section that transmits an ID required for authentication by the server apparatus 20 to the server apparatus 20, a second information acquiring section that acquires a master key to be obtained as a result of being authenticated by the server apparatus 20 from the server apparatus 20, a cryptographic key generation section that generates a cryptographic key according to the first information and the second information, an encryption section that encrypts data by means of the cryptographic key and an encrypted data transmission section that transmits the encrypted data encrypted by the encryption section to the server apparatus 20.
摘要:
A method for manufacturing a printed wiring board includes forming a metal film on a surface of an insulative board, a plating resist on the metal film, and a plated-metal film on the metal film exposed from the plating resist, covering a portion of the plated-metal film with an etching resist, etching to reduce thickness of the plated-metal film exposed from the etching resist, removing the etching and plating resists, and forming a wiring having a pad for wire-bonding an electrode of an electronic component and a conductive circuit thinner than the pad by removing the metal film exposed after the plating resist is removed, a solder-resist layer on the surface of the board and wiring, an opening in the layer exposing the pad and a portion of the circuit contiguous to the pad, and a metal coating on the pad and portion of the circuit exposed through the opening.
摘要:
A method for manufacturing a printed wiring board includes forming a metal film on a surface of an insulative board, a plating resist on the metal film, and a plated-metal film on the metal film exposed from the plating resist, covering a portion of the plated-metal film with an etching resist, etching to reduce thickness of the plated-metal film exposed from the etching resist, removing the resists, and forming a wiring having a pad and a conductive circuit thinner than the pad by removing the metal film exposed through the removing of the plating resist, a solder-resist layer on the surface of the board and wiring, in the layer an opening exposing the pad and a portion of the circuit contiguous to the pad, a solder film on the pad and portion of the circuit exposed through the opening, and a solder bump on the pad by solder reflow.
摘要:
Provided are a semiconductor light emitting module and a method of manufacturing the same, which allow achieving high luminance light emission as well as lightweight and compact features. In a semiconductor light emitting module (101), a projecting portion (202) serving as a reflecting member is formed on a metal thin plate (102) to surround a semiconductor light emitting element (104). The semiconductor light emitting element (104) is connected to a printed board (103) by using a wire (201), for example. The projecting portion (202) is formed by pressing and bending the metal thin plate (102) from a back surface, for example, to surround the element and to be higher than the semiconductor light emitting element (104).
摘要:
A storage apparatus includes a key control part to judge a validity of a data access from a request source based on authorization information received therefrom and authorization information created from an enciphering key included in enciphering key information received from a key management apparatus, and a control part to make the data access to the recording medium using the enciphering key in response to an access request from the request source, if the validity of the data access is confirmed. The authorization information from the request source includes a unique code created from the enciphering key if an authentication is successful in the key management apparatus in response to an authentication request from the request source.
摘要:
A combination substrate includes a first substrate having wiring board mounting pads for installing a printed wiring board and connection pads on an opposite side of the wiring board mounting pads, a second substrate having package substrate mounting pads for mounting one or more package substrates and having connection pads on an opposite side of the package substrate mounting pads, a middle substrate positioned between the first substrate and the second substrate and including conductive members electrically connecting the connection pads on the first substrate and the connection pads on the second substrate, and a die positioned between the first substrate and the second substrate and mounted on one of the first substrate and the second substrate.
摘要:
A method for manufacturing a printed wiring board includes forming a metal film on a surface of an insulative board, a plating resist on the metal film, and a plated-metal film on the metal film exposed from the plating resist, covering a portion of the plated-metal film with an etching resist, etching to reduce thickness of the plated-metal film exposed from the etching resist, removing the resists, and forming a wiring having a pad and a conductive circuit thinner than the pad by removing the metal film exposed through the removing of the plating resist, a solder-resist layer on the surface of the board and wiring, in the layer an opening exposing the pad and a portion of the circuit contiguous to the pad, a solder film on the pad and portion of the circuit exposed through the opening, and a solder bump on the pad by solder reflow.
摘要:
A client PC 10 adapted to be connected to a server apparatus 20 has a first information transmission section that transmits an ID required for authentication by the server apparatus 20 to the server apparatus 20, a second information acquiring section that acquires a master key to be obtained as a result of being authenticated by the server apparatus 20 from the server apparatus 20, a cryptographic key generation section that generates a cryptographic key according to the first information and the second information, an encryption section that encrypts data by means of the cryptographic key and an encrypted data transmission section that transmits the encrypted data encrypted by the encryption section to the server apparatus 20.