Electronic Components Datasheet Search |
|
TN1200 Datasheet(PDF) 11 Page - STMicroelectronics |
|
TN1200 Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 16 page DocID027277 Rev 1 11/16 TN1200 Soldering assembly recommendations 16 5.2 PCB assembly guidelines For Flip Chip mounting on the PCB. Flip Chips are fully compatible with the use of near eutectic 95.8% Sn, 3.5% Ag, 0.7% Cu solder paste with no-clean flux. ST's recommendations for Flip-Chip board mounting are illustrated on the soldering reflow profile shown in Figure 10. Figure 10. ST ECOPACK® recommended soldering reflow profile for Flip-Chip mounting on PCB (definitions) Dwell time in the soldering zone (with temperature higher than 217 °C) has to be kept as short as possible to prevent component and substrate damages. Peak temperature must not exceed 260 °C. Controlled atmosphere (N2 or N2H2) is recommended during the whole reflow, specially above 150 °C. Flip Chips are able to withstand three times the previous recommended reflow profile to be compatible with a double reflow when SMDs are mounted on both sides of the PCB plus one additional repair. A maximum of three soldering reflow are allowed for these lead-free packages (with repair step included). The use of a no-clean paste is highly recommended to avoid any cleaning operation. To prevent any bump cracks, ultrasonic cleaning methods are not recommended. Table 4. ST ECOPACK® recommended soldering reflow profile for Flip Chip mounting on PCB (value) Parameter Probe #1 PLCC 44 #2 PLCC 28 #3 SO-18 Positive temperature gradient °C/s 4.50 3.94 4.49 Time in positive gradient (min/sec) 00:17 00:13 00:16 Time from 150 to 200 °C (min/sec) 01:22 01:36 01:24 Time above 217 °C (min/sec) 02:05 01:50 02:05 Maximum temperature °C 244.0 239.9 243.6 Temperature difference °C 4.1 - Negative temperature gradient °C/s -3.46 -2.88 -3.97 250 0 50 100 150 200 240 210 180 150 120 90 60 30 300 270 -6°C/s 240-245 °C 2 - 3 °C/s Temperature (°C) -2 °C/s -3 °C/s Time (s) 0.9 °C/s 60 sec (90 max) |
Similar Part No. - TN1200 |
|
Similar Description - TN1200 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |