電路佈線(Layout) - ezphysics.nchu.edu.tw

1 (I) 1 ( layout ) ( 1 ) (PCB) ( 1 ) ( 1 ) 1 14 ( ) 30V ( 2) OrCAD Demo PCB layout OrCAD Protel 2 (Schematic) OrCAD Capture 1. OrCAD Capture a. Schematic Project Schematic( 3) PC Board Wizard 3 b. 4 (I) 2 CON CON : 4 c. Options/Schematic Page Properties ( 165mm 114mm) 5 d.

2 6 7 (1) Place Part Part (2) Part Search Part Name (1) (2)(3)(4) (I) 3 "?" "*" 7 "CON? " 1: 4 2 CON "CON* " CON (3) Begin Search (4) Library Path 2. 8 a. File/New/Library( 8)=>OK( 9) ( 10) (Project manager) ( 11) 8 9 b. Save 10 11 c. New Part ( 12) OK 13 (I) 4 12 13 (1) Preferences Grid Display Part and Symbol Grid Grid Style Lines ( 14) (2) Pointer snap to grid( ) 14 15 (3) Place Line Edit Edit Graphic Line Style& ( 16) (4) Place ellipse Edit Edit Filled Graphic fill Style.

3 Solid( 17) Pointer snap to grid (I) 5 16 17 (5) Place pin Place Pin ( 18) Name Number Place rectangle ( 19) Pointer snap to grid 18 19 20 (6)Save 20 Place Part ( 21) 21 3. File/Print Area/Set Print Preview ok PCB ( layout ) Capture OrCAD layout layout Footprint layout Footprint (I) 6 W 25W layout ? 2. Footprint 22 CON1: BCON100T> LM317:TO>TO220AB C: a.

4 100mil (= mm) inch layout Library TM_AXIAL( ) TM_DIODE( ) TM_CYLND( ) DIP100T( IC) DSUBT( ) SIP( ) Demo Ex_gui ( llb \tools\ layout \library ) Footprint Footprint b. OrCAD layout ( / /OrCAD Demo/ layout Demo) 22 c. Library Manager( Tools/Library Manager 23) 24 23 24 d. ( 24) TM_AXIAL ( llb ) Libraries llb Footprints llb Footprints( 25) e. AX/. Footprint 1/4 W( 1 ) L ( 26) (=248mil) d (=20mil) Footprint 1/4 W (I) 7 25 26 Type( 1) CR 1/8W1/4W1/2W1W 2W 3W DIMENSION(mm)L 1 11 15 18 D H 3 28 30 30 30 33 d ( 2) TM_CYLND 125mil Footprint 2 200 Footprint (175 100.)

5 031 ) TM_DIODE DAX/. (425 150 .040 ) DIP100T IC (100 14 IC 14 ) TO TO-932 TO-220 . DataSheet f. Footprint Capture Ctrl 400mil .31(inch=31mil) 100mil (I) 8 Edit ( 27) 27 g. Property Editor PCB Footprint Edit( 28) 28 29 30 h. Edit Property Values ( 29) Footprint( 30 Library Manager ) Footprint : (1) Windows XP .UPD ( Footprint) ( DataSheet) DAX/. (I) 9 { } 1 2 1 2 : {Value} PCB FootPrint 10k AX/. 10uF CPCYL1 (2) Capture Project manager PAGE1 Tools/Update Update Properties (3) OK 31 i.

6 Footprint ( > ) : Footprint 3 R TM_AXIAL>AX/. 1N4002 TM_DIODE>DAX/. LM317 TO> TO220AB C_pol(C1) TM_CYLND> C TM_CYLND> CON BCON100T> 337 317 TO220 3. Footprint Footprint( ) Footprint Footprint Footprint TO-220 ( Footprint ) (I) 10 a.

7 32 TO-220 ( ) ( ) 32 b. OrCAD layout Library Manger Create New Footprint OK( 33) 33 34 c. 34 Library Manger Pad Pin Tool d. Obstacle Tool Edit Obstacle 35 (I) 11 35 36 e. Options/System System Settins ( 36) 50mil f. 1 Edit Pad ( 37) PadstackName T2[Local] 1 37 38 g. View Spreadsheet Padstacks Padstacks ( 38) T2 TOP 62mil TOP Button h. Save ( 39) 39 : Footprint (I) 12 337 317 TO220 4.

8 Netlist : a. Capture Project manager PAGE1 Tools/Creat ( 40) Create Netlis layout /Options/User Properties are inches ( 41) 40 41 Session Log ERROR [XLT0009] Unexpected unknown Exception 42 b. (Project manager) ( 42) 4. Capture Netlist layout a. OrCAD layout Open new board( 43) AutoECO ( 44) MNL ApplyECO (I) 13 43 44 b. layout Link Footprint to Component ( 45) Footprint Defer remaining edits until OK 45 46 c. 14 errors( 46) diode Library Manger TM_DIODE>DAX/. C A Capture 1 2 ( 47) 47 d. Capture diode Edit Part( 48) Demo Edition (I) 14 48 49 e.

9 Diode Pin Properties A( 49) C (Update Current) (Update All) Update All( 50) 50 f. mnl layout mnl No errors found( 51) (I) 15 51 52 5. a. DRC ( Online DRC) (Auto Pan Options/User Display Preferences/Enable AutoPan) 53 (a) (b) (c) (d) (e)(f) (g)(h) (a) Library Manager (b) (c) View Spreadsheet (d) (e) Component Tool / / / / / (f) Pin Tool / / / / / (g) Obstacle Tool / / / / / (h) (I) 16 layout BOT AST layer name Global Layer ( ) Top Layer .TOP Bottom Layer.

10 BOT Silkscreen TOP .SST Silkscreen Bottom .SSB Inner Layer etc..IN1 IN2 Power Layer..PWR Ground Layer..GND Soldermask Top .SMT Soldermask Bottom .SMB Solder Paste Top .SPT Solder Paste Bottom .SPB Drill Drawing .DRD Assembly Top .AST Assembly Bottom .ASB b. (1) Options/System Settings System Settings 54 55 c. (1) Global Layer ( , 0 55) (I) 17 (2) Obstacle Tool / /New ( Ctrl+E) Edit Obstacle (3) (0,4500) ( 6500 4500) Esc ( / /End Command) (4) ( ) d. , , : , , ( 5 8cm) (1) Component Tool (2) ( 4) 90 R /Rotate I View/Zoom in O View/Zoom out C View/Zoom Center Shift + Home View/Zoom All (Fit) Ctrl + E /Properties Ctrl + F Tab Capture Capture d.