Abstract:
PROBLEM TO BE SOLVED: To provide a technology for performing a wafer-level burn-in and test. SOLUTION: The invention includes a test substrate 108 having active electronic components 106a to 106d, and metallic spring contact elements 110 effecting interconnections with a plurality of devices DUTs 102a to 102d to be tested on a wafer 104 to be tested. The test substrate 108 receives a plurality of signals for testing the DUTs 102a to 102d over relatively few signal lines from a host controller 116 and transmits these signals over relatively many interconnections between the test substrate 108 and the DUTs 102a to 102d. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a design and a test method that break a linear relationship between a fault detection range or testability and costs of testing or producing a design. SOLUTION: A test assembly 2000 is designed for testing product circuitry of a product die 2011. In one embodiment, the test assembly comprises a test die 2010 and an interconnection substrate 2008 for electrically connecting the test die to a host controller 2002. The test die can be designed according to a design methodology for a test die and a product die that includes a step of concurrently designing test circuitry and product circuitry in a unified design. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for applying a probe to a semiconductor element capable of an orientation of an edge of a probe element, without altering a position of a probe card. SOLUTION: The probe card assembly comprises an upper surface, a lower surface, and the probe card (electronic component) having a plurality of terminals on the upper surface: the upper surface, the lower surface and an intervention body (electronic component) which has the first plural contact structures with a restoring property extending from the terminals at the lower surface and the second plural contact structures with the restoring property extending from the terminals at the upper surface: the upper surface, the lower surface, an interval converter which has the plural contact pads (terminal) mounted at the lower surface and the third contact structures (probe element) with the restoring property extending from the terminals at the upper surface. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a product and an assembly for receiving a long and thin mutual contact element such as a spring contact element extending from an electronic part such as a semiconductor device. SOLUTION: A capture pad is provided in a socket board for receiving an end part of a long and thin mutual contact element extending from an electronic part. The structures of various capture pads are disclosed. A fixing device such as a housing surely positions the electronic part on the socket board. Connection to an external device is carried out through a conductive trace adjacent to the surface of the socket board. The socket board can be supported by a support board. In a particularly preferred embodiment, the capture pad is directly formed on a primary substrate such as a printed circuit board. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a microminiature spring contact suitable for probing of an active semiconductor device, and its manufacturing method. SOLUTION: A cantilever-shaped contact element 100 is long and narrow and has two ends 102, 104 and a center part 106 between the ends. The end 102 is a base part, and the contact element 100 is fitted with an electronic part (unillustrated) on the end 102. A coupling fixture 110 is provided on the base part 102. The coupling fixture 110 can be formed as a tab or a stud to facilitate brazing on a substrate at the assembly time. The end 104 is a free end, and a device to be tested is brought into contact with the end 104. An integrated projecting fixture 108, for example, in a pyramidal geometric shape, is provided on the tip 104 to assist connection by pressure to the terminal of the device to be tested. The contact element 100 has a step-shaped structure. The contact element can be easily manufactured by using a known lithography technology. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a microelectronic contact structure and a manufacturing method for manufacturing the microelectronic contact structure. SOLUTION: The method for mounting a plurality of spring contact elements to the terminal of an electronic component includes the manufacture of a plurality of spring contact elements on a sacrifice substrate, mounting one portion of the spring contact elements to the terminal of electronic components while the spring contact element is on the sacrifice substrate, and the removal of the sacrifice substrate after one portion of the spring contact element is mounted to the terminal of the electronic components. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a microelectronic contact structure and a method of making the same. SOLUTION: A device includes an electronic component including a trench in a surface, a terminal disposed on the surface of the electronic component and spaced from the trench, and an elongate spring contact element. The elongate spring contact element has a base portion affixed to the terminal, a body portion spaced above the surface of the electronic component and extended across the trench, and a contact portion spaced above the trench. The contact portion is movable toward the trench, and the spring contact element has a first spring constant. When the contact portion is moved enough toward the trench, the body portion contacts the end located between the surface and the trench, and when the contact portion is moved further toward the trench, the spring contact element exhibits a second spring constant different from the first spring constant. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To directly fit elastic contact structure to connection pads on semiconductor dies, before the semiconductor dies are made into unit bodies (separated) from a semiconductor wafer. SOLUTION: A circuit board (710), having a plurality of terminals (712) arranged on the surface of the semiconductor die or an object similar to the board, is connected to the semiconductor dies (702 and 704). Thus, the semiconductor dies can be trained (tested and/or burnt in). Finally, the semiconductor dies are formed into the unit bodies from the semiconductor wafer, and the same elastic contact structure (708) can be used for performing mutual connection between the semiconductor dies and the other electronic element (such as wiring boards and semiconductor packages). When the metal compound mutual interconnecting element (708) is used as the elastic contact structure, burn-in is conducted in at least a temperature of 150°C and it is completed in a period which is shorter than 60 minutes. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide design and test methodology for breaking a linear relation between a defect detecting range or test possibility and a design test or a cost related to production. SOLUTION: The present invention relates to a test assembly for testing a product circuit of a product die, and a product and a test die are prepared on a semiconductor wafer. The product circuit and a test circuit are divided into individual dies to eliminate or minimize the embedded test circuit on the product die 616. This provides a tendency of reducing a size of the product die, of reducing a production cost for the product die, and of maintaining a high-level test range for the product circuit in the product die. Then, the large number of product dies on one or more of wafer(s) can be tested using a test die 618. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a device and a method of producing an improved mutual connection element and a tip structure for carrying out pressure connection between terminals of electronic parts. SOLUTION: The tip structure includes a sharp blade, and this blade is arranged so that the length of the blade will become substantially in parallel with a horizontal movement direction of the tip structural when the tip structure bends and crosses the terminals of the electronic parts. In this way, the sharp blade arranged substantially in parallel clearly cuts in through a certain non-conductive layer (singular or multiple), and brings about sure electric connection between the interconnection element and the terminals of the electronic parts. COPYRIGHT: (C)2010,JPO&INPIT