1. ENGR 1182.03 College of Engineering Engineering Education Innovation Center LOC Design with CAD Lecture Slides Rev: 20120714LOC Design with CAD1

2. ENGR 1182.03 Lab-on-a-Chip Designs For this class you will create two LOC designs per team. The two designs are created to adapt your design ideas to two different chipholder designs The project description document defines the requirements of the two designs (Project Description Document section – Chip Requirements) Rev: 20120714LOC Design with CAD2

3. ENGR 1182.03 LOC in Chipholder Rev: 20120714LOC Design with CAD3

4. ENGR 1182.03 Leveraging Lab 1 & 2 Experiences Using what you learned: What went wrong or did not work well How can this “generic benchmark” be improved upon, given the problems? What prevents good performance (e.g., dirt, scratches, poor seals, channel/well proximity, well geometry, etc.) and how can this knowledge be used to create a better design and better practices when testing the design? Use your observations! Be creative! Your design should be a marriage of function and form! Rev: 20120714LOC Design with CAD4

5. ENGR 1182.03 Wafer Manufacturing Constraints Wafer designs will be milled from an acrylic material The milling machine will be using a 0.010”circular bit. Because of this you should not create any internal sharp corners since a circular bit cannot make that shape. For such features, round the internal corners with a radius of curvature of at least 200 microns. Also no channel or opening can be smaller than 200 microns. Extruded part file should be 1/8” thick with wells and channels 200 microns deep. Put your group letter on one side of the chip for identificaiton. Rev: 20120714LOC Design with CAD5

6. ENGR 1182.03 Round the internal corners with a radius of curvature of at least 200 microns. Rev: 20120714LOC Design with CAD6

7. ENGR 1182.03 Rev: 20120714LOC Design with CAD7 Design Deliverables Each team will provide two chip designs for the LOC device – One design for each chipholder Initial Sketch Design Submission for the 1 st chip Preliminary 1 st design 1st Chip Design Submission 2 nd chip Design Submission Hand-drawn sketchRequiredNot required Solidworks DeliverableNot required Dimensioned Part File to GTA Dimensioned Part File to GTA 1.Printout of dimensioned drawings 2. Send Solidworks part file to GTA Operational ProcessNot required Per Project Desc. Doc. Revised CalculationsNot required Detection well Volume Per Project Desc. Doc.Revised Deliverables

8. ENGR 1182.03 Preliminary 1 st Design Solidworks Part File emailed to GTA, due per website. Includes: - Use of 4-hole chip holder design (seed file) to ensure well alignment – Dimensioned Part File – Calculation of detection well volume – Include separate simple logo to identify your chip Instructional Team will provide feedback of the designs Rev: 20120714LOC Design with CAD8

9. ENGR 1182.03 1 st Design Submission Solidworks Part File emailed to GTA, due per website. Includes: Use of 4-hole chip holder design (seed file) to ensure alignment. a.Operational Process per Proj. Desc. Doc. b.Calculations per Proj. Desc. Doc. Instructional Team will provide feedback of the designs Rev: 20120714LOC Design with CAD9

10. ENGR 1182.03 2 nd Design Submission Based on the revisions suggested in the 1st design Should be drawn on 3 hole chip holder design (seed file) to ensure alignment. a.Dimensioned Chip Design with top view scaled up to 3:1. b.Send the part files (.SLDPRT) to TA (insure proper extrusion) c.Revised Operational Process d.Revised Calculations Rev: 20120714LOC Design with CAD10

11. ENGR 1182.03 Part file (.SLDPRT) Submission Send one part file per design to your GTA CONVERT UNITS TO INCHES USE FILE NAMING CONVENTION FOR EACH FILE –EXAMPLE: “LOC_SP13_B_DESIGN1.SLDPRT” Rev: 20120714LOC Design with CAD11 LAB ON CHIP Semester And Year GROUP CHIP NUMBER

12. ENGR 1182.03 Generic Dimensioned Design Rev: 20120714LOC Design with CAD12

13. ENGR 1182.03 Chip Holder Design with Chip Rev: 20120714LOC Design with CAD13

14. ENGR 1182.03 Solidworks Drawing Steps If not already open, open your part file for your Design (LOC_SP13_A_DESIGN1.SLDPRT). Select “Drawing” from the upper left-hand new file icon. Click on Model View on the Drawing Toolbar In the property manager, under Part/Assembly to Insert, select the file. Click next. Under orientation, click “front” under standard views. Under Scale, select custom scale, User Defined, and set to 3:1. DO NOT include the chip holder in this layout. Rev: 20120714LOC Design with CAD14

15. ENGR 1182.03 Dimensioning in Solidworks Under Annonate, choose Smart Dimension to dimension each feature of the drawing. Place and format appropriately as per the step below. Choose the standard OSU title block. Fill out the title block. Resize and format the text in the view for proper visibility as necessary. Save using the file naming conventions and save as type “Drawing Files (*.SLDDRW)”. Rev: 20120714LOC Design with CAD15