WO2009098770A1 - 品種交換ユニットおよび製造方法 - Google Patents
品種交換ユニットおよび製造方法 Download PDFInfo
- Publication number
- WO2009098770A1 WO2009098770A1 PCT/JP2008/052060 JP2008052060W WO2009098770A1 WO 2009098770 A1 WO2009098770 A1 WO 2009098770A1 JP 2008052060 W JP2008052060 W JP 2008052060W WO 2009098770 A1 WO2009098770 A1 WO 2009098770A1
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- WIPO (PCT)
- Prior art keywords
- socket board
- device under
- under test
- test
- socket
- Prior art date
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-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07364—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card with provisions for altering position, number or connection of probe tips; Adapting to differences in pitch
- G01R1/07371—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card with provisions for altering position, number or connection of probe tips; Adapting to differences in pitch using an intermediate card or back card with apertures through which the probes pass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0433—Sockets for IC's or transistors
- G01R1/0483—Sockets for un-leaded IC's having matrix type contact fields, e.g. BGA or PGA devices; Sockets for unpackaged, naked chips
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06772—High frequency probes
Definitions
- the present invention relates to a product type exchange unit and a manufacturing method. More specifically, the present invention relates to a product type exchange unit for forming an electrical connection to a device under test in a test apparatus, and a manufacturing method for manufacturing the same.
- Semiconductor test equipment has a structure that allows some parts to be exchanged for various tests.
- One of the parts that can be exchanged is a product type exchange unit that forms an electrical interface to the device under test.
- the product type replacement unit has a device socket corresponding to the shape of the device under test and the arrangement of the connection terminals, and a connector for connecting the socket to the test apparatus side.
- Patent Document 1 describes the structure of a socket board mounted on a performance board.
- the socket board has an interlayer wiring and electrically connects an IC socket mounted on the upper surface and a coaxial cable connected to the lower surface. It also has the function of physically supporting the IC socket.
- Patent Document 2 describes a socket board on which a plurality of sockets are mounted. This socket board also physically supports the socket and includes a wiring for the socket, and takes part of the electrical connection to the socket. Japanese Patent Laid-Open No. 11-094896 Japanese Patent Laid-Open No. 2000-235061
- the signal processed in the device under test is getting faster every day. For this reason, the test signal in the semiconductor test apparatus has also been increased in speed, and has recently reached the gigahertz band. As described above, a signal having a high frequency is easily influenced by a distribution constant formed by the wiring itself, and transmission loss, mismatched reflection, reflection due to a stub, and the like become remarkable. Since signal deterioration in the test apparatus makes it difficult to accurately evaluate the device under test, effective countermeasures are required.
- a product type exchange unit that is mounted on a test apparatus according to the product type of the device under test and is interposed in the signal path between the device under test and the test device.
- a socket board having a front surface and a back surface, and a device under test approaching and separating from the front surface side, and being supported from the socket board in the same arrangement as the connection terminals of the device under test, and protruding from the front surface of the socket board.
- a product type exchange unit including a plurality of spring pins whose tips are brought into contact with connection terminals of a device under test.
- a product type exchange unit that is mounted on a test apparatus in accordance with the type of device under test and is interposed in a signal path between the device under test and the test device.
- a plurality of vias formed through the front and back in the same arrangement as the connection terminals on the back surface of the device socket having the connection terminals on the front surface, and the socket board on which the device socket is mounted on the front surface and the back surface of the socket board A fixed block member, a spring pin embedded in the block member and projecting from the inside of the block member toward the back surface of the socket board, abutting on the end surface of the via on the back surface of the socket board, and one end A coaxial cable connected to the rear end of the spring pin and extending from the back side of the block member toward the test device side Obtain varieties exchange unit is provided.
- a product type exchange unit that is mounted on a test apparatus according to the type of device under test and is interposed in the signal path between the device under test and the test device, A socket board on which the device is brought close to and away from, a connection member electrically connected to the connection terminal of the device under test on the surface of the socket board, and one end connected to the rear end of the connection member; A coaxial cable extending from the back side toward the test apparatus side, and a conductor block fixed to the back side of the socket board, the conductor block being electrically coupled to the shielded wire of the coaxial cable; and A product exchange unit is provided that mechanically supports a coaxial cable.
- a support member having a front surface and a back surface, a spring pin embedded in the support member and having a tip projecting from the inside of the support member toward the surface, one end of the spring pin And a coaxial cable connected to the end and extending from the back side of the support member to the test apparatus side, and mounted on the test apparatus according to the type of the device under test, and a signal path between the device under test and the test apparatus
- a method of manufacturing a product exchange unit intervening in the method the step of inserting a spring pin into the support member from the front surface, the step of inserting one end of the coaxial cable into the support member from the back surface, the spring pin and the coaxial cable Are electrically coupled to each other.
- a test head for performing a test on the device under test and a test head according to the type of the device under test are mounted on the signal head between the device under test and the test apparatus.
- a test apparatus including a product type exchange unit, wherein the product type exchange unit has a front surface and a back surface, the socket board on which the device under test is brought close to and away from the front surface side, and the same arrangement as the connection terminals of the device under test And a plurality of spring pins that are supported from the socket board and protrude from the surface of the socket board so that the tips contact the connection terminals of the device under test.
- a test head for performing a test on the device under test and a test head according to the type of the device under test are mounted on the test head and interposed in the signal path between the device under test and the test apparatus.
- a socket board on which the device socket is mounted on the front surface a block member fixed to the back surface of the socket board, and embedded in the block member and projecting from the inside of the block member toward the back surface of the socket board
- the spring pin with the tip of the tip abutted against the end face of the via on the back of the socket board, and one end It is connected to the rear end of Ngupin, test device and a coaxial cable that extends toward the testing device side from the back side of the block member.
- a test head for performing a test on the device under test and a test head according to the type of the device under test are mounted on the signal head between the device under test and the test apparatus.
- a product type exchange unit wherein the product type exchange unit is electrically connected to a socket board on which the device under test is approached and separated from the surface, and a connection terminal of the device under test on the surface of the socket board.
- FIG. 3 is a cross-sectional view showing the structure of a product type exchange unit 200.
- FIG. It is a figure which shows the layout of the bottom face of the socket board.
- FIG. 3 is a cross-sectional view showing the structure of a product type exchange unit 200.
- FIG. 5 is a diagram showing a layout of an upper surface of a conductor block 240.
- 4 is a cross-sectional view showing a horizontal cross-sectional structure at the bottom surface of a conductor block 240.
- test equipment 110 handler, 111 connection terminal, 112 device under test, 120 test head, 122 pin electronics, 124 motherboard, 130 mainframe, 140 connection cable, 200 product replacement unit, 201 connection structure, 210 device socket, 211 through Hole, 212 socket guide, 213 connection member, 214 device socket, 220 socket board, 222 insulation layer, 224 interlayer wiring, 226 interlayer via, 228 through via, 227 pad, 229 capacitor, 230 spacer, 240 conductor block, 250 dielectric 260 spring pin, 261 flange, 262 contact pin, 263 fastener, 264 sleeve, 270 coaxial cable, 27 Core, 274 dielectric, 278 insulating material, 276 a shield wire, 280 connector, 290 housing, 329 spot facing portion
- FIG. 1 is a diagram schematically showing the entire structure of the test apparatus 100.
- the test apparatus 100 includes a handler 110, a test head 120, and a main frame 130.
- the handler 110 stores the device under test 112 and also transports the device under test 112 to the test head 120 for each required number for the test.
- the device is a memory
- a test of a plurality of devices under test 112 such as 512 can be automatically and sequentially executed.
- the test head 120 accommodates a plurality of pin electronics 122.
- the pin electronics 122 generates a test signal to be transmitted to the device under test 112 under an instruction from the main frame 130.
- the test signal transmitted to the device under test 112 and processed is received, and the function and characteristics of the device under test 112 are evaluated.
- the pin electronics 122 is connected to the motherboard 124.
- the product replacement unit 200 is mounted on the upper surface of the test head 120.
- the product type exchange unit 200 is selected and mounted with the same shape of the connection part as the device under test 112 transported by the handler 110. As a result, an electrical signal can be transmitted or received between the device under test 112 and the test head 120.
- the main frame 130 is connected to the handler 110 and the test head 120 by the connection cable 140, and comprehensively controls the operation of each part.
- test head 120 when there is a request for switching the device under test 112 to another product type, or when the content of the test is changed, both the product type exchange unit 200 and the pin electronics 122 are used. Alternatively, the test can be performed using the same test head 120 by replacing either one. Thereby, the utilization efficiency of the expensive test apparatus 100 can be improved.
- FIG. 2 is a cross-sectional view showing the structure of the product type exchange unit 200.
- the product type exchange unit 200 has a structure in which a socket board 220, a spacer 230, a conductor block 240, and a housing 290 are sequentially stacked.
- the socket board 220 has an interlayer wiring 224 and an interlayer via 226 integrated by an insulating layer 222 and a spring pin 260. A part of the interlayer wiring 224 is also formed on the lower surface of the socket board 220. Interlayer wiring 224 is electrically interconnected by interlayer via 226.
- the socket board 220 has a device socket 214 and a socket guide 212 mounted on the upper surface.
- the device socket 214 has a plurality of through holes 211 formed in the same arrangement as the connection terminals 111 of the device under test 112.
- An example of the connection terminal 111 is a ball grid array (BGA).
- the device socket 214 has a portion for guiding the pin of the handler 110 holding the device under test 112. As a result, the connection terminal 111 of the device under test 112 held by the handler 110 is guided to a position facing the through hole 211.
- the spring pin 260 is embedded through the socket board 220 in the thickness direction.
- the spring pin 260 has the same arrangement as the through hole 211 of the device socket 214.
- the upper end of the spring pin 260 protrudes from the upper surface of the socket board 220 and extends into the through hole 211. That is, the device socket 214 functions as a housing for the spring pin 260. As a result, the device under test 112 pressed from the handler 110 brings the connection terminal 111 into contact with the upper end of the spring pin 260.
- the conductor block 240 is fixed to the lower surface of the socket board 220 in the region where the spring pins 260 are arranged.
- the conductor block 240 is formed of a conductive material such as metal, for example, and is in contact with the interlayer wiring 224 on the lower surface of the socket board 220 and has the same potential as the interlayer wiring 224.
- the spacer 230 is mounted around the conductor block 240, positions the conductor block 240, and flattens the lower surface of the assembly of the socket board 220, the conductor block 240, and the spacer 230.
- the spacer 230 is an electrical conductor and is electrically connected to the interlayer wiring 224 on the bottom surface of the socket board 220.
- a countersink portion 329 that receives the capacitor 229 disposed on the lower surface of the socket board 220 is provided.
- the housing 290 supports the assembly from below and accommodates the connector 280 and the coaxial cable 270.
- the connector 280 is attached to the bottom surface of the housing 290, and forms an electrical connection with the circuit on the motherboard 124 side when the product type exchange unit 200 is attached on the motherboard 124.
- the coaxial cable 270 penetrates the conductor block 240 and electrically connects the lower end of the spring pin 260 and the connector 280. Further, the power supply line 371 and the ground line 372 also electrically connect the interlayer wiring 224 and the connector 280. As a result, the connection terminal 111 of the device under test 112 pressed from the handler 110 is connected to the motherboard 124 via the spring pin 260, the coaxial cable 270, and the connector 280.
- the product exchange unit 200 is mounted on the test apparatus 100 according to the type of the device under test 112 and is interposed in the signal path between the device under test 112 and the test device 100, and has a front surface and a back surface.
- the product type exchange unit 200 including a plurality of spring pins 260 whose tips are brought into contact with the connection terminals 111 of the device under test 112 is formed.
- the product replacement unit 200 further includes a socket guide 212 for guiding the handler 110 holding the device under test 112, and causes the connection terminal 111 of the device under test 112 to abut the tip of the spring pin 260.
- FIG. 3 is a diagram showing a layout of the bottom surface of the socket board 220.
- the position of the bottom surface in the product type change unit 200 is indicated by an arrow P in FIG.
- a part of the interlayer wiring 224 and the lower end of the spring pin 260 are exposed on the bottom surface of the socket board 220.
- a capacitor 229 is attached to the lower surface of the socket board 220.
- the interlayer wiring 224 is formed on the entire bottom surface of the socket board 20 except for the periphery of the spring pin 260. Further, the lower end of the spring pin 260 is separated from the interlayer wiring 224. Thereby, when the spring pin 260 becomes a signal path, a distributed constant circuit is formed in cooperation with the interlayer wiring 224 in a plane including at least the bottom surface of the socket board 220.
- FIG. 4 is a diagram showing a signal path connection structure 201 in the product type exchange unit 200.
- a spring pin 260 is interposed in a signal path from the device under test 112 mounted on the socket board 220 to the coaxial cable 270.
- the spring pin 260 includes a sleeve 264 embedded through the socket board 220 in the thickness direction, and a contact pin 262 extending from the sleeve 264 to above the socket board 220.
- the contact pin 262 can slide in the longitudinal direction inside the sleeve 264 and is biased upward by a biasing member built in the sleeve 264. Thereby, the dimension error in the height direction of the device under test 112 and its connection terminal 111 can be absorbed, and the contact pin 262 can be reliably brought into contact with the connection terminal to establish electrical continuity.
- the sleeve 264 of the spring pin 260 has a flange portion 261 formed integrally with the upper end. Accordingly, when the sleeve pin is inserted into the through hole formed in the thickness direction of the socket board 220, the spring pin 260 does not sink more than a certain amount inside the socket board 220. Further, it is possible to receive a reaction force when the connection terminal 111 comes into contact with the upper end of the contact pin 262 and to ensure electrical connection between the two.
- the flange portion 261 is pressed toward the upper surface of the socket board 220 by the lower surface of the device socket 214. This prevents the spring pin 260 from falling off the socket board 220.
- the lower end of the spring pin 260 slightly protrudes downward on the lower surface of the socket board 220, and a fastener 263 is attached to the periphery.
- the fastener 263 is attached immediately after the spring pin 260 is inserted into the socket board 220, and temporarily holds the spring pin 260 until the device socket 214 is attached.
- the socket board 220 has a plurality of interlayer wirings 224 formed in parallel to the front and back surfaces of the socket board 220, most of which are disposed inside the socket board 220.
- Each of the interlayer wirings 224 is arranged around the spring pin 260 penetrating the socket board 220 without being in contact therewith.
- interlayer vias 226 embedded so as to extend in the thickness direction of socket board 220 connect interlayer wirings 224 to each other.
- each of the spring pins 260 is surrounded by a shield portion formed by the interlayer wiring 224 and the interlayer via 226 having the same potential as the conductor block 240 to form a coaxial line.
- the interlayer wiring 224 inside the socket board 220 that forms the shield portion may not be formed over the entire surface of the socket board 220.
- some of the spring pins 260 may be used for power supply or the like, and the spring pins 260 may be electrically connected to the interlayer wiring 224.
- any one of the spring pins 260 and a part of the interlayer wiring 224 may be used as a low-speed signal wiring for propagating a low-speed signal such as a power source supplied to the device under test 112.
- the coaxial cable does not have to be connected to the bottom surface side of the spring pin 260 that is electrically connected to the interlayer wiring 224.
- the coaxial cable 270 includes a core wire 272 located in the center in the radial direction, a shield wire 276 that surrounds the core wire 272 via a dielectric 274, and an insulating material 278 that surrounds the outside of the shield wire 276.
- the shield wire 276 and the dielectrics 274 and 278 are removed, and the core wire 272 is exposed.
- the exposed core wire 272 is coupled to the lower end of the spring pin 260. That is, the spring pin 260 is pushed into the inside of the spring pin 260 from the lower end of the sleeve 264 and is electrically integrated.
- the section following the exposed portion of the core wire 272 of the coaxial cable 270 is inserted into the conductor block 240.
- the outer insulating material 278 is removed, and the shield wire 276 and the conductor block 240 are in direct contact.
- the coaxial cable 270 is mechanically supported and fixed by the conductor block 240, and the shield wire 276 and the conductor block 240 have the same potential.
- the conductor block 240 and the interlayer wiring 224 are connected to each other. Further, the interlayer wiring 224 forms a coaxial structure with the spring pin 260. Accordingly, a coaxial signal line is formed from the coaxial cable 270 to the upper surface of the socket board 220.
- connection structure 201 in the vicinity of the upper end of the coaxial cable 270, the member is removed and the outer diameter becomes narrower as it approaches the upper end. Therefore, when assembling the product replacement unit 200, it can be inserted from below into the assembly in which the socket board 220 and the conductor block 240 are combined.
- the step of inserting the spring pin 260 into the socket board 220 from the surface the step of inserting one end of the coaxial cable 270 from the back surface of the socket board 220, and the step of electrically coupling the spring pin 260 and the coaxial cable 270.
- a socket board 220 having a front surface and a back surface, a spring pin 260 embedded in the socket board 220 with a tip protruding from the inside of the socket board 220 toward the surface, and one end of the spring pin 260.
- a coaxial cable 270 that is connected to the rear end of the socket board 220 and extends from the back surface side of the socket board 220 to the mother board 124 side.
- the coaxial cable 270 is attached to the test apparatus 100 according to the type of the device under test 112, Intervene in signal path between test equipment 100 It can produce varieties exchange unit 200 that.
- FIG. 5 is a cross-sectional view showing the structure of a product type exchange unit 200 according to another embodiment.
- the product type exchange unit 200 has a structure in which a socket board 220, a spacer 230, a conductor block 240, and a housing 290 are sequentially stacked.
- the same reference number is attached
- the socket board 220 includes an insulating layer 222, an interlayer wiring 224, an interlayer via 226, and a through via 228.
- a socket guide 212 and a device socket 214 are mounted on the upper surface of the socket board 220.
- the device socket 214 has a plurality of through holes 211 formed in the same arrangement as the connection terminals 111 of the device under test 112 in the main body, and an elastic connection in the extending direction of the through holes 211 inside the through holes 211.
- the member 213 is accommodated.
- An example of the connection member 213 is a contact pin.
- the socket guide 212 has a portion for guiding the pins of the handler 110 holding the device under test 112. As a result, the connection terminal 111 of the device under test 112 held by the handler 110 comes into contact with the upper end of the connection member 214 disposed in the through hole 211.
- the interlayer wiring 224 is also formed on the lower surface of the socket board 220. Further, the interlayer wiring 224 is electrically interconnected by an interlayer via 226.
- the through via 228 is formed to penetrate the socket board 220 in the thickness direction.
- Flat pads 227 are provided at both ends of the through via 228.
- the through via 228 is electrically separated from the interlayer wiring 224 and the interlayer via 226.
- the arrangement of the pads 227 on the upper surface of the socket board 220 is equal to the arrangement of the connection members of the device socket 210.
- the conductor block 240 is fixed to the lower surface of the socket board 220 in the region where the through via 228 is disposed.
- the conductor block 240 is formed of a conductive material such as metal, for example, and is in contact with the interlayer wiring 224 on the lower surface of the socket board 220 and has the same potential as the interlayer wiring 224.
- a spring pin 260 is embedded in the conductor block 240 via a dielectric 250.
- the spring pins 260 have the same arrangement as the arrangement of the pads 227 on the lower surface of the socket board 220.
- the upper end of the spring pin 260 is in contact with the lower end surface of the through via 228.
- the spacer 230 is mounted around the conductor block 240, positions the conductor block 240, and flattens the lower surface of the assembly of the socket board 220, the conductor block 240, and the spacer 230.
- the housing 290 supports the assembly from below and accommodates the connector 280 and the coaxial cable 270.
- the connector 280 is attached to the bottom surface of the housing 290, and forms an electrical connection with the circuit on the motherboard 124 side when the product type exchange unit 200 is attached on the motherboard 124.
- the coaxial cable 270 is coupled to the lower end of the spring pin 260 inside the conductor block 240.
- the connection terminal 111 of the device under test 112 mounted on the device socket 210 is connected to the motherboard 124 via the connection member 214, the through via 228, the spring pin 260, the coaxial cable 270, and the connector 280.
- the product exchange unit 200 is mounted on the test apparatus 100 according to the type of the device under test 112 and is interposed in the signal path between the device under test 112 and the test apparatus 100, and includes a connection member 214 for the device under test 112.
- a socket board 220 having a plurality of through vias 228 formed so as to penetrate the front and back in the same arrangement as the connection terminals on the back surface of the device socket 210, and the back surface of the socket board 220.
- a conductor block 240 fixed to the conductor block 240 and an end surface of the through via 228 embedded in the conductor block 240 and projecting from the inside of the conductor block 240 toward the back surface of the socket board 220.
- Spring pin 260 abutted on and one end It is connected to the rear end of Gupin 260, cultivar exchange unit and a coaxial cable that extends toward the testing device side from the back side of the conductor block 240 is formed.
- FIG. 6 is a diagram showing a layout of the bottom surface of the socket board 220. Note that the position of the bottom surface in the type change unit 200 is indicated by an arrow P in FIG. Further, the direction of the line of sight when looking up at the bottom is indicated by an arrow A in FIG.
- the lowermost interlayer wiring 224, the pad 227 formed at the lower end of the through via 228, and the lower end of the interlayer via 226 appear on the bottom surface of the socket board 220.
- the interlayer wiring 224 is formed on the entire bottom surface of the socket board 220 except for the periphery of the pad 227.
- the interlayer via 226 shows an end face in a region where the interlayer wiring 224 exists.
- the pad 227 corresponding to the lower end of the through via 228 is separated from the interlayer wiring 224.
- a distributed constant circuit is formed in cooperation with the interlayer wiring 224 in a plane including at least the bottom surface of the socket board 220.
- FIG. 7 is a view showing the layout of the upper surface of the conductor block 240. Note that the position of the upper surface is indicated by an arrow P in FIG. Further, the direction of the line of sight when looking down at the upper surface is indicated by an arrow B in FIG.
- the spring pin 260 embedded in the conductor block 240 can be seen from the upper surface of the conductor block 240. It can also be seen that the dielectric 250 is interposed between the conductor block 240 and the spring pin 260. Thereby, when the spring pin 260 becomes a signal path, a distributed constant circuit is formed in cooperation with the conductor block 240 in a plane including at least the upper surface of the conductor block 240. Further, this distributed constant is maintained over substantially the entire length of the spring pin 260.
- FIG. 8 is a cross-sectional view showing a horizontal cross-sectional structure at the bottom surface of the conductor block 240.
- the position of the bottom surface in the product type exchange unit 200 is indicated by an arrow R in FIG. Further, the direction of the line of sight when looking up at the bottom is indicated by an arrow C in FIG.
- FIG. 9 is a diagram showing an electrical connection structure 201 from the socket board 220 to the coaxial cable 270 in the product type exchange unit 200. Constituent elements common to other drawings are denoted by the same reference numerals, and redundant description is omitted.
- the socket board 220 has a plurality of interlayer wirings 224 formed in parallel with the front and back surfaces of the socket board 220.
- the interlayer wiring 224 is connected to each other by an interlayer via 226 extending in the thickness direction of the socket board 220.
- the interlayer wiring 224 is not in contact with the through via 228.
- each of the through vias 228 is surrounded by the shield portion formed by the interlayer wiring 224 and the interlayer via 226 to form a coaxial line.
- the interlayer wiring 224 inside the socket board 220 that forms the shield portion may not be formed over the entire surface of the socket board 220.
- some of the through vias 228 may be used for power supply or the like, and the through vias 228 may be electrically connected to the interlayer wiring 224.
- any of the through vias 228 and a part of the interlayer wiring 224 may be used as a low-speed signal wiring for propagating a low-speed signal such as a power source supplied to the device under test 112.
- the spring pin 260 may not be connected to the bottom surface side of the through via 228 that is electrically connected to the interlayer wiring 224.
- the interlayer wiring 224 located on the bottom surface of the socket board 220 is in contact with the conductor block 240.
- the spring pin 260 embedded in the conductor block 240 is biased upward and presses the tip against the pad 227. Thereby, an electrical connection between the through via 228 of the socket board 220 and the spring pin 260 is established.
- the spring pin 260 is embedded in the conductor block 240 via the dielectric 250.
- the dielectric 250 wraps around the lower surface of the spring pin 260 and blocks electrical conduction between the spring pin 260 and the conductor block 240. Thereby, the coaxial structure by the conductor block 240 and the spring pin 260 is formed. Since the upper end of the dielectric 250 is opened, the spring pin 260 can be inserted from above.
- the shield wire 276 and the dielectrics 274 and 278 are removed, and the core wire 272 is exposed.
- the exposed core wire 272 is pushed into the spring pin 260 from the lower end of the sleeve 264 of the spring pin 260 and becomes electrically integrated.
- the subsequent section of the coaxial cable 270 is inserted into the conductor block 240.
- the outer insulating material 278 is removed, and the shield wire 276 and the conductor block 240 are in direct contact. Accordingly, the coaxial cable 270 is mechanically supported and fixed by the conductor block 240, and the shield wire 276, the conductor block 240, and the interlayer wiring 224 have the same potential.
- a coaxial signal line is formed from the coaxial cable 270 to the upper surface of the socket board 220.
- connection structure 201 in the vicinity of the upper end of the coaxial cable 270, the member is removed and the outer diameter is narrowed toward the upper end. Therefore, when assembling the product replacement unit 200, it can be inserted into the conductor block 240 from the lower surface.
- the step of inserting the spring pin 260 from the front surface of the conductor block 240 the step of inserting one end of the coaxial cable 270 from the back surface of the conductor block 240, and the step of electrically coupling the spring pin 260 and the coaxial cable 270.
- a coaxial cable 270 extending from the back surface side of the conductor block 240 to the mother board 124 side, and attached to the test apparatus 100 according to the type of the device under test 112. Manufactures product exchange unit 200 that intervenes in signal path between Kill.
- the product type exchange unit 200 has a coaxial structure for most of the signal path from the motherboard 124 to the device under test 112.
- the impedance of a signal line can be matched and attenuation
- damping of a transmission signal can be suppressed.
- unnecessary electromagnetic radiation and crosstalk due to the transmission signal are also suppressed. Therefore, it can be advantageously used particularly in a test apparatus for testing a semiconductor device having a high signal frequency.
- a pair of adjacent lines are combined to form parallel two wires.
- a balanced type line may be formed.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Measuring Leads Or Probes (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
Claims (22)
- 被試験デバイスの品種に応じて試験装置に装着され、前記被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットであって、
表面および裏面を有して表面側に前記被試験デバイスが近接および離間されるソケットボードと、
前記被試験デバイスの接続端子と同じ配置で前記ソケットボードから支持され、且つ、前記ソケットボードの表面から先端を突出させて前記被試験デバイスの接続端子に先端を当接させる複数のスプリングピンと
を備える品種交換ユニット。 - 前記ソケットボードは、前記被試験デバイスに供給される低速信号を伝播させる低速信号配線を更に有する請求項1に記載の品種交換ユニット。
- 前記スプリングピンは、前記ソケットボードの裏面から後端を突出させる請求項1に記載の品種交換ユニット。
- 前記被試験デバイスの接続端子を前記スプリングピンの前記先端に当接させるべく、前記被試験デバイスを案内するデバイスソケットを更に備える請求項1に記載の品種交換ユニット。
- 前記デバイスソケットは、前記スプリングピンを前記ソケットボードに対して押しつける請求項4に記載の品種交換ユニット。
- 前記スプリングピンは、前記ソケットボードの裏面側から前記試験装置側に向かって延在する同軸ケーブルの一端を後端に接続される請求項1に記載の品種交換ユニット。
- 前記同軸ケーブルの他端は、前記試験装置のマザーボードに接続される請求項6に記載の品種交換ユニット。
- 前記ソケットボードは、
前記ソケットボードの表面および裏面に平行に形成された複数の導体層と、
前記ソケットボードの厚さ方向に埋設され、前記複数の導体層を相互に電気的に結合するビアと
を含むシールド部を有する請求項6に記載の品種交換ユニット。 - 前記ソケットボードの裏面に対して固定され、前記同軸ケーブルのシールド線に電気的に結合され、且つ、前記同軸ケーブルを機械的に支持する導体のブロック部材を更に備える請求項8に記載の品種交換ユニット。
- 前記ブロック部材は、前記シールド部に電気的に接続される、請求項9に記載の品種交換ユニット。
- 被試験デバイスの品種に応じて試験装置に装着され、前記被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットであって、
前記被試験デバイスに対する接続端子を表面に有するデバイスソケットの裏面の接続端子と同じ配置で表裏を貫通して形成された複数のビアを有し、前記デバイスソケットを表面に実装されるソケットボードと、
前記ソケットボードの裏面に対して固定されたブロック部材と、
前記ブロック部材に埋設されて、前記ブロック部材の内部から前記ソケットボードの裏面に向かって突出させた先端を、前記ソケットボードの裏面において前記ビアの端面に当接させたスプリングピンと、
一端を前記スプリングピンの後端に接続され、前記ブロック部材の裏面側から前記試験装置側に向かって延在する同軸ケーブルと
を備える品種交換ユニット。 - 前記同軸ケーブルの他端は、前記試験装置のマザーボードに接続される請求項11に記載の品種交換ユニット。
- 前記ソケットボードは、前記デバイスソケットに装着された前記被試験デバイスに供給される低速信号を伝播させる低速信号配線を更に有する請求項11に記載の品種交換ユニット。
- 前記ブロック部材は、導体により形成されて前記同軸ケーブルのシールド線に電気的に結合され、且つ、前記同軸ケーブルを機械的に支持する請求項11に記載の品種交換ユニット。
- 前記ソケットボードは、
前記ソケットボードの表面および裏面に平行に形成された複数の導体層と、
前記ソケットボードの厚さ方向に埋設され、前記複数の導体層を相互に電気的に結合するビアと
を含むシールド部を有する請求項11に記載の品種交換ユニット。 - 前記ブロック部材は、前記シールド部に電気的に接続される請求項15に記載の品種交換ユニット。
- 被試験デバイスの品種に応じて試験装置に装着され、被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットであって、
表面に前記被試験デバイスが近接および離間されるソケットボードと、
前記ソケットボードの表面において、前記被試験デバイスの接続端子に電気的に先端を接続される接続部材と、
前記接続部材の後端に一端を接続され、前記ソケットボードの裏面側から前記試験装置側に向かって延在する同軸ケーブルと、
前記ソケットボードの裏面に対して固定された導体ブロックと
を備え、前記導体ブロックは、前記同軸ケーブルのシールド線に電気的に結合され、且つ、前記同軸ケーブルを機械的に支持する品種交換ユニット。 - 前記ソケットボードは、
前記ソケットボードの表面および裏面に平行に形成された複数の導体層と、
前記ソケットボードの厚さ方向に埋設され、前記複数の導体層を相互に電気的に結合するビアと
を含むシールド部を更に有し、
前記導体ブロックは、前記シールド部に電気的に接続される請求項17に記載の品種交換ユニット。 - 表面および裏面を有する支持部材と、
前記支持部材に埋設されて、前記支持部材の内部から前記表面に向かって先端を突出させたスプリングピンと、
一端を前記スプリングピンの後端に接続され、前記支持部材の前記裏面の側から試験装置側に延在する同軸ケーブルと
を備え、被試験デバイスの品種に応じて試験装置に装着され、被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットを製造する製造方法であって、
前記スプリングピンを、前記支持部材に前記表面から挿入する段階と、
前記同軸ケーブルの前記一端を、前記裏面から前記支持部材に挿入する段階と、
前記スプリングピンおよび前記同軸ケーブルを電気的に結合する段階と
を含む製造方法。 - 被試験デバイスに対する試験を実行するテストヘッドと
前記被試験デバイスの品種に応じて前記テストヘッドに装着され、前記被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットと
を備える試験装置であって、
前記品種交換ユニットが、
表面および裏面を有して表面側に前記被試験デバイスが近接および離間されるソケットボードと、
前記被試験デバイスの接続端子と同じ配置で前記ソケットボードから支持され、且つ、前記ソケットボードの表面から先端を突出させて前記被試験デバイスの接続端子に先端を当接させる複数のスプリングピンと
を有する試験装置。 - 被試験デバイスに対する試験を実行するテストヘッドと
前記被試験デバイスの品種に応じて前記テストヘッドに装着され、前記被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットと
を備える試験装置であって、
前記品種交換ユニットが、
前記被試験デバイスに対する接続端子を表面に有するデバイスソケットの裏面の接続端子と同じ配置で表裏を貫通して形成された複数のビアを有し、前記デバイスソケットを表面に実装されるソケットボードと、
前記ソケットボードの裏面に対して固定されたブロック部材と、
前記ブロック部材に埋設されて、前記ブロック部材の内部から前記ソケットボードの裏面に向かって突出させた先端を、前記ソケットボードの裏面において前記ビアの端面に当接させたスプリングピンと、
一端を前記スプリングピンの後端に接続され、前記ブロック部材の裏面側から前記試験装置側に向かって延在する同軸ケーブルと
を有する試験装置。 - 被試験デバイスに対する試験を実行するテストヘッドと
前記被試験デバイスの品種に応じて前記テストヘッドに装着され、前記被試験デバイスおよび前記試験装置の間で信号経路に介在する品種交換ユニットと
を備える試験装置であって、
前記品種交換ユニットが、
表面に前記被試験デバイスを実装されるソケットボードと、
前記ソケットボードの表面において、前記被試験デバイスの接続端子に電気的に先端を接続される接続部材と、
前記接続部材の後端に一端を接続され、前記ソケットボードの裏面側から前記試験装置側に向かって延在する同軸ケーブルと、
前記ソケットボードの裏面に対して固定された導体ブロックと
を備え、前記導体ブロックは、前記同軸ケーブルのシールド線に電気的に結合され、且つ、前記同軸ケーブルを機械的に支持する試験装置。
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PCT/JP2008/052060 WO2009098770A1 (ja) | 2008-02-07 | 2008-02-07 | 品種交換ユニットおよび製造方法 |
TW098103665A TWI388853B (zh) | 2008-02-07 | 2009-02-05 | 品種交換單元以及其製造方法及所應用的測試裝置 |
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Also Published As
Publication number | Publication date |
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TWI388853B (zh) | 2013-03-11 |
KR20100099323A (ko) | 2010-09-10 |
DE112008003702T5 (de) | 2010-11-25 |
KR101138197B1 (ko) | 2012-05-10 |
US20110057664A1 (en) | 2011-03-10 |
JPWO2009098770A1 (ja) | 2011-05-26 |
TW200938856A (en) | 2009-09-16 |
CN101939659A (zh) | 2011-01-05 |
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