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5321585 |
Directly solderable auxiliary circuit board assembly and methods of making and using the same
Disclosed is a directly solderable circuit board assembly including a main circuit board directly connected to an auxiliary circuit board without the use of interfacing terminals. The main circuit...
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5319525 |
Circuit assembly
A circuit assembly comprises a plurality of electronic devices mounted on a circuit board, including a matched pair of devices intended for use together in the same circuit. In order to reduce the...
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5319522 |
Encapsulated product and method of manufacture
A method is provided for encapsulating an object with a heat-shrinkable material prior to subjecting the encapsulated object to insert, injection molding. The encapsulation protects the object from...
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5319521 |
Ceramic frames and capsules for Z-axis modules
The Ceramic frames and capsules for Z-axis modules shown herein are formed by placing chips 10 into a ceramic frame 12, breaking apart the frame 12 into sub-frames 26, and bonding the sub-frames 26...
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5315486 |
Hermetically packaged HDI electronic system
A hermetic package particularly adapted for high density interconnect (HDI) electronic systems employs a ceramic substrate which serves as a base for the hermetic package. The substrate comprises a...
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5313367 |
Semiconductor device having a multilayer interconnection structure
Actualized are fingers through which a semiconductor integrated circuit including high density electrode strings can be easily safely mounted on a circuit substrate in the same manner with the...
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5311403 |
Printed substrate for mounting high-power semiconductor chip thereon and driver component making use of the printed substrate
A printed chip-on-board substrate is for mounting a high-power semiconductor chip. As a construction for efficiently releasing or dissipating heat to be generated in the semiconductor chip, the...
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5311400 |
Low profile header assembly for an encapsulated instrument
A low profile header assembly for an encapsulated instrument includes a plate member with a cavity which is on the side of the plate member external to the instrument. Terminal pins extend through...
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5309322 |
Leadframe strip for semiconductor packages and method
A substantially planar insulating sheet of high temperature printed circuit board material (11) is used to form a leadframe strip (18, 19, 21) for a semiconductor package (20). The leadframe strip...
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5307241 |
Electronic circuit board arrangements including main auxiliary circuit boards
A electronic circuit board arrangement includes a main circuit board on which components are mounted, with component leads passing through holes in this board. Additional components are provided on...
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5303123 |
Retainer for removable circuit board components
A retainer for removable components that plug into a printed circuit board retains the removable component in an associated sockets on a printed circuit board. The retainer has the form of a clip...
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5300812 |
Plasticized polyetherimide adhesive composition and usage
A plasticized polyetherimide, such as a blend of polyetherimide and a pentaerythritol tetrabenzoate ester, has been found useful as a low temperature laminating adhesive for making high density...
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5299096 |
LED mounting holder and device for mounting LED using it
An LED mounting holder for mounting one or more LEDs on a printed circuit board and for having the printed circuit board on a front panel of an electronic apparatus with the LEDs mounted on the...
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5299094 |
IC card including multiple substrates bearing electronic components
An IC card includes a main substrate and a plurality of sub-substrates. Each sub-substrate has two surfaces on which electronic components are installed. The sub-substrates are mounted on both...
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5291375 |
Printed circuit board and electric device configured to facilitate bonding
A circuit board for mounting an electric device having a plurality of leads, the circuit board including an insulating substrate and a pad electrode formed on the insulating substrate, the pad...
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5289342 |
System with cooling of electronic components on a circuit board
The system includes a circuit board on which electrical components are mounted. The components are mounted on the front side of the board, and the back side of the board is thermally coupled to the...
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5287247 |
Computer system module assembly
A computer system module includes a central processing unit (CPU), a floating-point accelerator (FPA), a read/write buffer (RWB), cache memory, a clock generator, buffers, and reset logic. The...
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5285352 |
Pad array semiconductor device with thermal conductor and process for making the same
A pad array semiconductor device (35) includes a thermal conductor (28) integrated into a circuitized substrate (14). A semiconductor die (12) is mounted on the substrate overlying the thermal...
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5278728 |
Diode mounting
A mounting assembly for a plurality of bipolar electrical components connected between two generally parallel electrical supports, each bipolar electrical component having a lower base terminal...
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5276590 |
Flex circuit electronic cards
A flex circuit, which is fabricated from metallization on thin film, is mounted between two opposite sides of frame to form an electronic card sized to fit as a replacement for a rigid epoxy glass...
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5264990 |
Integrated circuit card that aids in reducing stress on an integrated circuit
The invention relates to an integrated circuit card comprising a card support (130) which has a cavity (101) in which a vignette (200) is fixed, which vignette (200) comprises a circuit support...
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5261153 |
In situ method for forming a capacitive PCB
An in situ method for forming a bypass capacitor element internally within a PCB comprising the steps of arranging one or more uncured dielectric sheets with conductive foils on opposite sides...
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5257165 |
Pin grid array adaptor mounting hardware
A PGA adaptor mounting hardware comprising a PGA adaptor which has a plurality of double-head fastening pins and contact pins with flush type contact terminals, and a printed circuit board which...
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5255158 |
Microwave connector assembly connected easily to microwave circuit components
A microwave circuit component (40) has terminals and is mounted on a principal surface (38) of a substrate (34) received in a cavity (45) of a housing (35) with a additional surface (39) brought...
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5255157 |
Plastic pin grid array package with locking pillars
A plastic pin grid array package is detailed. Where the semiconductor device is mounted within a cavity in the printed wiring board, it is surrounded by a ring of holes that extend completely...
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5241456 |
Compact high density interconnect structure
An improved high density interconnect structure may include electronic components mounted on both sides of its substrate or a substrate which is only as thick as the semiconductor chips which...
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5241455 |
L-shaped channel wiring method
To minimize the area of an L-shaped channel wiring region between VLSI circuit blocks, a trunk 1 is formed in the direction along L-shaped sides A and B in the wiring region interposed between the...
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5239127 |
Electrical interconnect apparatus
An apparatus provides an electrical connection (113) between an RF shield (109) and a printed circuit board (115) in a radio communication device (100). A spring member (211), having a free end...
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5237485 |
Apparatus and method for improved thermal coupling of a semiconductor package to a cooling plate and increased electrical coupling of package leads on more than one side of the package to a circuit board
A heat sink and method for heat sinking a package containing electronic components is described. The heat sinking is accomplished by use of a cooling plate located beneath a circuit board. The...
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5235131 |
RF shield fabrication method
An RF conductive shield can be fabricated from, and adhered to, a nonconductive substrate in the following manner. The RF conductive shield is fabricated in a predetermined geometric shape on the...
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5233504 |
Noncollapsing multisolder interconnection
An improved electrical component package comprises a component attached to a substrate by a plurality of multisolder interconnections. Each interconnection comprises a preformed spacer bump...
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5233503 |
Pressure-contact type semiconductor device
A pressure-contact type semiconductor device with pressure-contact electrodes for external connection is disclosed. The pressure-contact electrodes are mounted through an insulating material on a...
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5229548 |
Circuit board having a stamped substrate
A method and apparatus is provided for forming a power distribution system during a punching operation. A planar member of conductive material is located proximate to the substrate upon which the...
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5205032 |
Electronic parts mounting apparatus
An electronic parts mounting device according to this invention is characterized by including a mount body which is obtained by bonding at least two substrates each having a predetermined...
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5200884 |
Electrical control device
A control instrument has a body which is provided at the bottom surface thereof with a plurality of terminals. The terminals are folded upwardly along the side surfaces thereof and the body is...
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5177324 |
In situ RF shield for printed circuit board
A printed circuit board providing RF shielding. An electrically insulating material serves as a substrate (10) with two opposed sides. At least one side of the substrate (10) has an electrically...
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5138115 |
Carrierles surface mounted integrated circuit die
An integrated circuit package and method of making the package which allows an integrated circuit die to be bonded to a substrate without need of a carrier. The integrated circuit die has opposed...
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5130889 |
Integrated circuit protection by liquid encapsulation
A device for hermetically protecting integrated circuits is disclosed. The device includes a plastic housing which has a cavity. The cavity forms an opening at the top of the housing and extends...
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5121293 |
Method and apparatus for interconnecting devices using tab in board technology
A Tape Automated Bonding (TAB) process prepared multi-chip module (MCM) has semiconductor dice embedded into the substrate of the MCM through its top face. A heatsink, which in a preferred...
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5102720 |
Co-fired multilayer ceramic tapes that exhibit constrained sintering
Shrinkage is substantially reduced or eliminated in the x-y plane during co-firing interposing predominantly ceramic layer between predominantly glass layers in the green multilayer assembly. The...
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5068631 |
Sub power plane to provide EMC filtering for VLSI devices
Electromagnetic filtering for a VLSI device having multiple power input leads is realized by employing a sub-power plane which is physically separate from a main power distribution system on a...
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5065277 |
Three dimensional packaging arrangement for computer systems and the like
A three dimensional arrangement for packaging planar arrays of circuit components in a plurality of essentially planar layers in which the layers lie closely adjacent to one another is disclosed....
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5055637 |
Circuit boards with recessed traces
Circuit boards with imbedded traces, which may form grooves or trenches are provided. The traces may be at least partially filled with a reflowable conductive material such as solder. The grooves...
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5042145 |
Method for mounting an electronic component and memory card using same
A method for mounting a LSI chip (1) with conductive bumps (2, 3, 4) as terminals into a hole (15) of a card (5) and for interconnecting them. The card and therefore one end of the hole is first...
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5038132 |
Dual function circuit board, a resistor element therefor, and a circuit embodying the element
A dual function circuit board substrate has a layer or sheet of ultrathin metal of relatively high electrical resistivity having a selected sheet resistivity characteristic bonded to a thin layer...
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4994938 |
Mounting of high density components on substrate
A printed circuit board or other substrate mounts electrical components substantially coplanar with the median plane or thickness of the board or substrate. The board furnishes an opening having...
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4992925 |
Converter with intermediate d.c. circuit
A converter with an intermediate d.c. circuit includes power components grouped together in a plurality of modules. Bus bars are provided to which the modules are connected.
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4992688 |
Printed circuit board with a metallic layer for supporting an electrical component
A composite printed circuit board having a metallic layer supporting body with a first insulating layer thereon and wherein the insulating layer has copper printed circuits placed thereon. The...
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4985601 |
Circuit boards with recessed traces
Circuit boards with imbedded traces, which may form grooves or trenches are provided. The traces may be at least partially filled with a reflowable conductive material such as solder. The grooves...
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4959750 |
Printed circuit board for carrying a mixed-component assembly
A printed circuit board provided for mixed-component assembly of electrically hard-wired and surface-mounted components which eliminates the difficulties of bonding large components and which...
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