Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_199666_1 ( wireless_lan VARCHAR, process_technology VARCHAR, centrino VARCHAR )

### Question ###
What Wireless LAN had a process technology of 90nm and a Carmel centrino?

### Accurate SQL ###

SELECT wireless_lan FROM table_199666_1 WHERE process_technology = "90nm" AND centrino = "Carmel"