Lab Guides

MaPSA Probe Testing The Macro Pixel Sub-Assembly (MaPSA) is the bump bonded assembly of the pixelated PS-p sensor and the MPA (Macro Pixel ASIC) readout chip. The PS modules contain a strip sensor on the top layer and a the pixelated strip sensor on the bottom layer. This will require sixteen MPA chips (each with a size of 12 mm x 26mm and cont...

Wire Bonding: Long Term 2S and PSs Sensors For long term testing of the 2-S and PSs sensors, we wire bond the 2S and PSs sensors to a green base plate. Two bonds are made on each sensor, one connecting the bias ring to the PCP board (copper surrounding sensor), and the other connecting the bonding surface between fiducial 5 & 6 to the PC...

Wire Bonding (half moon sensors for alibava test) Start by turning on the computer as well as the mechanical bonder Computer = red button on the right side Make sure you chose the autobonding option The computer should show the microscopic view, the tablet acts as a sort of control pad, giving you options to change how...

Smartscope: Visualization inspection When we receive sensors, we need to take pictures of them for quality control = visual inspection for scratches/ any damage done to the sensor before being used in the lab When handing the sensors, wear gloves, ESD bracelet and blue ESD grounding booties. Procedure Turn on the controller for the smar...

Smartscope: Laser Scanning Tool We use the Laser scanning tool to calculate changes in height along the bond pads on hybrids and sensors as well as to see if sensors have any bowing present (not perfectly flat). This is done as part of the final inspection for 2S and PSS modules and has recently been integrated into the visual inspection rou...

Making RTDS Make the 20 foot long twisted wire 1 square tile in 550 = ~1foot Placing a piece of painters tape on one end of the room, place the end of the wire spool down to the ground, walk 20 tiles forward, placing another piece of tape to make 20 feet, and then cut the wire. Do this twice to get two 20 foot copper wires Tie a knot at...

RINSC Rabbit Stick Procedure In the shared Google Drive, go to RINSC Irradiations Create a new folder for the rabbit you are making, and copy the text file found inside the previous rabbit stick folder. Rename both this folder and the text file with the number of this round of irradiation In the text document, r...

Before starting The vacuum pen, needs to be cleaned before starting any test. To clean the vacuum pen: Grab a Kim Wipe and Isopropyl Alcohol (Bottle with yellow dispenser cap) Wipe the vacuum pen’s suction cup Dry the vacuum pen using the ion fan for 10 - 15 seconds. This will ensure that the vacuum pen doesn’t transfer any dust to the...

Hazardous Waste Removal: EPOXY Go to: Waste Pick Requests Select the Request Waste Removal Form Generator: Nick/me PI: Ulrich The pickup location is autofilled in (B&H 703) Waste type: not specified Physical state: solid Detailed description/comments: 2 part epoxies used in module assembly a...

Dispensing Robot Used for gluing Kapton Isolators to 2S sensors. Every 2S module needs 6 isolators A complete 2S module consists of 2 strip sensors. Each strip sensor gets 3 kapton isolators: 2 for the aluminum carbon fiber (ACF) bridges, 1 for the stump bridge Also used to attach high ...

CV/IV Station Probe station setup: Temp control Measuring currents pin diode Measuring and sending the voltage to the chuck/diode IV: Setting the voltage and measuring currents CV: Measuring capacitance There are 3 types of diodes: P-type : HGcal diodes, Half Moon diod...

Alibava HM Sensor Testing For our irradiation study, two HM diode chips (C0 and C1) are irradiated and tested using the alibava set-up in lab 550, which performs a series of tests from -300V to -900V at 100 volt intervals. Extra tests are run at voltages -600V and -800V. We do not want the voltage to exceed compliance for the half moons before ...