User`s manual

Lake Shore MTD Series Cryotest System User’s Manual
Options, Accessories, & Cables 6-5
ACCESSORIES (CONTINUED)
MODEL DESCRIPTION OF ACCESSORY
1521K
Device Test Set Assembly Kit. The Model 1521K Series of test set assembly kits are complete
device kits incorporating the Model 1521 personality-style fanout boards with specific device
socket, a clamp assembly, and the appropriate cold finger pedestal—all gold plated. The clamp
assembly positions the chip carrier against the cold pedestal and holds the fixed aperture disks
and optical filters. A 1-inch (2.54 cm) diameter aperture disks with one or two cold filters is
inserted in the optical path and held in place by a screw-on cap with a 0.8 inch (2.93 cm)
aperture. All interior optical surfaces are vapor-blasted and black-anodized to minimize optical
reflections. The test set assembly kit is ordered separately from the basic MTD system
mainframe. Each test set is configured to accommodate the standard or modified fanout
board/chip carrier socket arrangement you require. One test set is required per MTD mainframe.
Consult Lake Shore for further information.
1521K-68 – Kit for 68-pin LCC devices
1521K-84 – Kit for 84-pin LCC Devices
1521K-xxD– Kit for DIP devices (“xx” up to 64 pin maximum)
1521K-40Z – Kit for 40-pin Zero Insertion Force (ZIF) devices
1521CC-
100
Chip Carrier/Personality Fanout Board. The Model 1521CC-100 is a personality-style fanout
board with a built-in chip carrier. The 100-pin fanout board incorporates a 1 inch square chip well
with an Invar mounting base in the center of the board to accommodate DUT chips. The 1521CC
board has 100 wire bond pads for connections to the DUT chip. A G-10 fiberglass ring is installed
over the wire bond pad traces for protection. The 1521CC-100 board can be used with an
MTD-140 or -150 System. The mounting hardware from a 1521CCK-100 test set assembly kit
is required.
Typically, the user bonds or laminates the DUT chip to the 1521CC-100 Invar mounting base and
wire bonds the chip lead connections to the contact pads on the board. Using the solderable
through-plated holes, the user then wires (breadboard style) the bond pad traces to the signal line
traces on the board to complete the electrical connection to the coaxial signal line of the MTD
System.
1521CCK-
100
Chip Carrier/Personality Fanout Board Kit. The Model 1521CCK-100 includes one 1521CC-
100 chip carrier/personality fanout board and all hardware necessary to properly install the board
in an MTD-140 or -150 System and to clamp the DUT chip to the cold plate. The complete kit
includes the chip carrier fanout board, board mounting hardware, a clamp assembly for the DUT
chip, and a cold finger pedestal for the Invar mounting base of the board. All of the clamp
assembly interior optical surfaces are bead-blasted and black anodized to minimize optical
reflections.
NOTE: The device clamp housing can be custom configured to accommodate special filters or
apertures. The custom clamp housing would position the filter/aperture directly above the test
device.
1522
General Purpose Fanout Board. The Model 1522 is a versatile tool which gives the user of an
MTD-140 or -150 System the flexibility to configure their system to test custom devices or
complete modules. The Model 1522 is an annular board with 100 signal traces terminated into
bifurcated pins around the 7.6 cm (3 inch) diameter center hole. The 1522 fanout board is
installed in the MTD System by mounting it directly on the interface board fingers and clamping it
into place with the fanout board retaining ring. The bifurcated pins are now connected to the 100
signal lines. Using Customer-supplied installation hardware, (device mounting hardware, device
clamping hardware, cold pedestal) the device/module to be tested is mounted directly on the cold
plate or on a cold pedestal. The test device/module leads are then wired to the 1522 bifurcated
pins for connection to the coax signal lines.